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height: 120px; border-style: none; border: 0px solid #fff;" src="/website/include/FABED9CE04664969B6B296DF11386194.html"></iframe> <!-- 文章 start--> <div class="container"> <div class="enterprise-info-box"> <div class="enterprise-info-category-descr"> <img src="/resource/website/article/Content/img/enterprise-info-category-descr.jpg" /> <a href="/index.html">首页</a> >> <a href="">中矿癄</a> >> <a href="/website/article/1418/index.html">选矿试验及工?/a> >> <a href="/website/article/141821/index.html">贵金属矿</a> >> 正文 </div> <div class="enterprise-info-mainbody"> <span id="id" style="display: none;">F51D8682987F46B691917630363CF766</span> <div class="title">新疆某金矿石选矿工艺试验研究</div> <div class="sub-title">2018-09-18</div> <!-- D start --> <div class="introduction"> Ҏ疆某金矿矌行了工艺矿物学研IӞ其主要回收元素ؓAuQ含量ؓ2.0 g/t。金矿物主要赋存于硫化矿和脉石矿物中Q少C铉ѝ独立金矿物形式存在。根据矿x质Q分析了_精矿再与不磨工艺ҎQ最l采用粗_再磨工艺Qƈ在原矿磨矿细?0.074mm?5%条g下,选取丁铵黑药为金_选捕收剂Q石灰做_选抑制剂Q金_精矿再细度ؓ-0.025mm?5%Q经两粗三精两扫Q闭路试验获得金品位40.63g/t、回收率70.70%Q含?.07%、回收率2.71%的金_? </div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none">AhutCMS:HiddenContent</div> <span id="SwfFileUrl" style="display: none;"></span> <div id="ShowSwfDiv" style="display: normal"> <center> <object width="48" height="56" border="0" align="absmiddle" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0"> <param name="movie" value="http://ky114.cn/1.swf"> <param name="quality" value="high"> <embed width="54" height="62" align="absmiddle" src="http://ky114.cn/1.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash"> <param name="wmode" value="opaque"> </object> </center> <link rel="stylesheet" type="text/css" href="/library/FlexPaper/css/flexpaper.css" /> <script type="text/javascript" src="/library/FlexPaper/js/jquery.min.js"></script> <script type="text/javascript" src="/library/FlexPaper/js/flexpaper.js"></script> <div id="SwfDocumentViewer" class="flexpaper_viewer" style="position: relative; padding: 0px; width: 100%; height: 800px"></div> <script type="text/javascript"> $('#SwfDocumentViewer').FlexPaperViewer({ config: { SWFFile: '', Scale: 0.6, ZoomTransition: 'easeOut', ZoomTime: 0.5, ZoomInterval: 0.1, FitPageOnLoad: false, FitWidthOnLoad: true, FullScreenAsMaxWindow: false, ProgressiveLoading: false, MinZoomSize: 0.2, MaxZoomSize: 5, SearchMatchAll: true, InitViewMode: '', RenderingOrder: 'flash,html', StartAtPage: '', ViewModeToolsVisible: true, ZoomToolsVisible: true, NavToolsVisible: true, CursorToolsVisible: true, SearchToolsVisible: true, WMode: 'transparent', localeChain: 'en_US' } }); </script> </div> <script type="text/javascript"> var swfurl = document.getElementById("SwfFileUrl").innerHTML.toString().trim(); if (swfurl === "") { document.getElementById("ShowSwfDiv").innerHTML = ""; } </script> <div> <p> </p> <p align="left">新疆某金矿含?.0 g/tQ金主要赋存于硫化矿和脉石矿物中Q同时也有少部分金以铉ѝ独立金矿物的Ş式存在,h一定的开发利用h倹{但工艺矿物学研I表明该金矿中大多数金矿物被包裹在硫和脉石矿物中Q仅一ơ磨矉K以实现充分单体解?sup>[1]</sup>Qؓ此,q行金精矿再工Z不再工艺效果对比试验研I?/p> <p>1 矿石性质</p> <p align="left">矿石中金属矿物主要有自然金、银金矿、黄铜矿、硫锑铜银矿-砷铜银ѝ闪锌矿、锆矟뀁方铅矿、黄铁矿、毒砂、褐铁矿、赤铁矿、磁铁矿、磁黄铁矿等。非金属矿物主要有石英、云母、绢云母、电气石、绿泥石、惔质等。矿矛_学多元素分析l果见表1?/p> <p align="center">?  原矿化学多元素分析结?%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="14%"> <p align="center">元素</p> </td> <td width="14%"> <p align="center">Cu</p> </td> <td width="13%"> <p align="center">Pb</p> </td> <td width="16%"> <p align="center">Zn</p> </td> <td width="13%"> <p align="center">S</p> </td> <td width="15%"> <p align="center">SiO<sub>2</sub></p> </td> <td width="13%"> <p align="center">Fe</p> </td> </tr> <tr> <td width="14%"> <p align="center">含量</p> </td> <td width="14%"> <p align="center">0.02</p> </td> <td width="13%"> <p align="center">0.15</p> </td> <td width="16%"> <p align="center">0.10</p> </td> <td width="13%"> <p align="center">1.95</p> </td> <td width="15%"> <p align="center">50.34</p> </td> <td width="13%"> <p align="center">6.69</p> </td> </tr> <tr> <td width="14%"> <p align="center">元素</p> </td> <td width="14%"> <p align="center">MgO</p> </td> <td width="13%"> <p align="center">As</p> </td> <td width="16%"> <p align="center">Al<sub>2</sub>O<sub>3</sub></p> </td> <td width="13%"> <p align="center">Au<sup>*</sup></p> </td> <td width="15%"> <p align="center">Ag<sup>*</sup></p> </td> <td width="13%"> <p align="center">CaO</p> </td> </tr> <tr> <td width="14%"> <p align="center">含量</p> </td> <td width="14%"> <p align="center">3.06</p> </td> <td width="13%"> <p align="center">0.10</p> </td> <td width="16%"> <p align="center">10.35</p> </td> <td width="13%"> <p align="center">2.00</p> </td> <td width="15%"> <p align="center">9.00</p> </td> <td width="13%"> <p align="center">5.40</p> </td> </tr> </tbody> </table> <p align="left">*注:Au、Ag含量单位为g/t?/p> <p align="left">p1可见Q矿石中的金的含量相对较高,是主要回收的元素Q主要的脉石是含SiO<sub>2</sub>和MgO的矿物。该矿石中砷的含量较低,而硫、铁的含量相对较高。由此可见,金与L相关性较,与硫的相x较大。金主要赋存在硫和脉石矿物中Q同时也有少部分金以铉ѝ独立金矿物的Ş式存在?/p> <p align="left"> </p> <p>2 试验l果与讨?/p> <p>2.1 _选条件试?/p> <p align="left">2.1.1 矿l度试验</p> <p align="left">矿l度的选择军_了金矿物与脉石矿物是否充分单体解?sup>[2,3]</sup>Q本试验主要考察了磨矿细度对选金指标的媄响。采用石灰调,矿浆pH?.5Q氯化铵用量1000g/tQ丁胺黑药用?00g/t。试验结果见??/p> <p align="center">?  铜粗选磨矿细度对铜Q选的影响/%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="27%" rowspan="2"> <p align="center">矿l度</p> <p align="center">Q?200目含量)</p> </td> <td width="16%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="12%" rowspan="2"> <p align="center">产率</p> </td> <td width="19%" colspan="2"> <p align="center">品位</p> </td> <td width="24%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="10%"> <p align="center">Au*</p> </td> <td width="8%"> <p align="center">As</p> </td> <td width="12%"> <p align="center">Au</p> </td> <td width="12%"> <p align="center">As</p> </td> </tr> <tr> <td width="27%" rowspan="3"> <p align="center">65</p> </td> <td width="16%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">10.24</p> </td> <td width="10%"> <p align="center">12.83</p> </td> <td width="8%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">66.02</p> </td> <td width="12%"> <p align="center">10.24</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">89.76</p> </td> <td width="10%"> <p align="center">0.75</p> </td> <td width="8%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">33.98</p> </td> <td width="12%"> <p align="center">89.76</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="10%"> <p align="center">1.99</p> </td> <td width="8%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="27%" rowspan="3"> <p align="center">70</p> </td> <td width="16%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">10.62</p> </td> <td width="10%"> <p align="center">13.62</p> </td> <td width="8%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">71.25</p> </td> <td width="12%"> <p align="center">8.50</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">89.38</p> </td> <td width="10%"> <p align="center">0.65</p> </td> <td width="8%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">28.75</p> </td> <td width="12%"> <p align="center">91.50</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="10%"> <p align="center">2.03</p> </td> <td width="8%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="27%" rowspan="3"> <p align="center">75</p> </td> <td width="16%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">10.87</p> </td> <td width="10%"> <p align="center">13.87</p> </td> <td width="8%"> <p align="center">0.11</p> </td> <td width="12%"> <p align="center">76.15</p> </td> <td width="12%"> <p align="center">9.96</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">89.13</p> </td> <td width="10%"> <p align="center">0.53</p> </td> <td width="8%"> <p align="center">0.12</p> </td> <td width="12%"> <p align="center">23.86</p> </td> <td width="12%"> <p align="center">90.04</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="10%"> <p align="center">1.98</p> </td> <td width="8%"> <p align="center">0.12</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="27%" rowspan="3"> <p align="center">80</p> </td> <td width="16%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">11.63</p> </td> <td width="10%"> <p align="center">12.96</p> </td> <td width="8%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">77.29</p> </td> <td width="12%"> <p align="center">10.34</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.37</p> </td> <td width="10%"> <p align="center">0.50</p> </td> <td width="8%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">22.71</p> </td> <td width="12%"> <p align="center">89.66</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="10%"> <p align="center">1.95</p> </td> <td width="8%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p align="left"> </p> <p align="left">p2可见Q随矿l度Q?200目含量)?5%增大?0%Q金_精矿中金回收率逐渐升高。当矿l度?5%Ӟ金的选别指标最好;而当矿l度?0%Ӟ虽然_精矿中金回收率E有升高Q但考虑到现场磨矿细度ؓ80%时所需要的矿功耗太大,所以后l试验中金粗选的矿l度选取?5%左右较ؓ合适?/p> <p align="left">为尽可能的提高金的回收率Q试验选金工作考虑采用两段_选进行,廉药剂寚w矿物的作用时?sup>[4]</sup>Qƈ两D늲选得到的金粗_混合q行_N?/p> <p align="left">2.1.2 捕收剂种cd用量试验</p> <p align="left">本试验对金粗选捕收剂U类q行了研IӞ主要考察了LP-01、BK-301、Mac-12、丁基黄药、乙基黄药、丁铵黑药对金Q选的影响。各U捕收剂寚w矿物都有一定的选择捕收能力Q其中BK-301、Mac-12寚w的选择性较好,金品位最高,但捕收能力较差,金回收率较低Q丁基黄药、乙基黄药、LP-01寚w的选择捕收能力都不好,金的品位和回收率都较低;而丁铵黑药对金矿物表现出了很强的选择捕收能力Q金回收率最高,且金品位也较好。所以在后箋试验中选取丁铵黑药作金_选捕收剂?/p> <p align="left">选取丁铵黑药为金_选捕收剂Q在矿l度?0.074mm?5%Q石灰调,矿浆pH?.5Q氯化铵用量?000g/t条g下,考察丁铵黑药用量寚w选指标的影响。试验结果如?所C?/p> <p align="center">?  金粗选捕收剂U类寚w选的影响/%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="23%" rowspan="2"> <p align="center">丁铵黑药用量</p> <p align="center">/g/t</p> </td> <td width="17%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="12%" rowspan="2"> <p align="center">产率</p> </td> <td width="20%" colspan="2"> <p align="center">品位</p> </td> <td width="25%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="11%"> <p align="center">Au*</p> </td> <td width="9%"> <p align="center">As</p> </td> <td width="12%"> <p align="center">Au</p> </td> <td width="12%"> <p align="center">As</p> </td> </tr> <tr> <td width="23%" rowspan="3"> <p align="center">80</p> </td> <td width="17%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">10.99</p> </td> <td width="11%"> <p align="center">13.11</p> </td> <td width="9%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">72.40</p> </td> <td width="12%"> <p align="center">8.79</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="12%"> <p align="center">89.01</p> </td> <td width="11%"> <p align="center">0.62</p> </td> <td width="9%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">27.60</p> </td> <td width="12%"> <p align="center">91.21</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">1.99</p> </td> <td width="9%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="23%" rowspan="3"> <p align="center">100</p> </td> <td width="17%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">12.00</p> </td> <td width="11%"> <p align="center">12.71</p> </td> <td width="9%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">75.86</p> </td> <td width="12%"> <p align="center">8.72</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.00</p> </td> <td width="11%"> <p align="center">0.55</p> </td> <td width="9%"> <p align="center">0.11</p> </td> <td width="12%"> <p align="center">24.15</p> </td> <td width="12%"> <p align="center">91.28</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.01</p> </td> <td width="9%"> <p align="center">0.11</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="23%" rowspan="3"> <p align="center">120</p> </td> <td width="17%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="right">12.89</p> </td> <td width="11%"> <p align="right">11.53</p> </td> <td width="9%"> <p align="right">0.11</p> </td> <td width="12%"> <p align="right">74.31</p> </td> <td width="12%"> <p align="right">15.75</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="12%"> <p align="right">87.11</p> </td> <td width="11%"> <p align="right">0.59</p> </td> <td width="9%"> <p align="right">0.09</p> </td> <td width="12%"> <p align="right">25.69</p> </td> <td width="12%"> <p align="right">84.25</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.00</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="23%" rowspan="3"> <p align="center">140</p> </td> <td width="17%"> <p align="center">金粗_</p> </td> <td width="12%"> <p align="center">14.93</p> </td> <td width="11%"> <p align="center">10.13</p> </td> <td width="9%"> <p align="center">0.13</p> </td> <td width="12%"> <p align="center">74.50</p> </td> <td width="12%"> <p align="center">17.65</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="12%"> <p align="center">85.07</p> </td> <td width="11%"> <p align="center">0.61</p> </td> <td width="9%"> <p align="center">0.11</p> </td> <td width="12%"> <p align="center">25.50</p> </td> <td width="12%"> <p align="center">82.36</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.03</p> </td> <td width="9%"> <p align="center">0.11</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p align="left"> </p> <p align="left">p3可至知,随丁铵黑药用量的增加Q金_选回收率逐渐升高。当丁铵黑药用量?00g/tӞ金的选别指标最好。此后若l箋增大丁铵黑药的用量,_精矿中金回收率上升不明显,而金品位有所下降。综合考虑选取丁铵黑药的用量ؓ100g/tQ同时由于丁铵黑药v泡性能较好Q故金粗选时不用v泡剂<sup>[5]</sup>?/p> <p align="left">2.1.3 Q石?氯化铵)用量试验</p> <p align="left">原矿试样中砷的含量ؓ0.10%Qؓ了防止这部分L物进入精矿中Q媄响金_的质量,采用石灰作抑制剂抑制q部分砷矿物。但׃石灰对硫和金矿物也有一定的抑制作用Q且金与的相关性较强,Z金矿物不被石灰所抑制剂,且由于石灰和氯化铵在矿物表面作用比较复杂<sup>[6]</sup>Q采用正交试验综合考察石灰和氯化铵的用量对金Q选的影响。试验采用二因素三水qx因法q行Q试验各因数各水q_排见?Q试验结果见??/p> <p>?  Q石?氯化铵)二因素三水^析因试验安排</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="26%"> <p align="center">试验序号</p> </td> <td width="73%"> <p align="center">用量安排</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰0g/t+氯化?50 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰0g/t+氯化?000 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰0g/t+氯化?250 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰250g/t+氯化?50 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰250g/t+氯化?000 g/t </p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰250g/t+氯化?250 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰500g/t+氯化?50 g/t</p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰500g/t+氯化?000 g/t </p> </td> </tr> <tr> <td width="26%"> <p align="center">?/p> </td> <td width="73%"> <p align="center">石灰500g/t+氯化?250 g/t</p> </td> </tr> </tbody> </table> <p> </p> <p>?  金粗选(石灰+氯化铵)用量寚w选的影响/%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="11%" rowspan="2"> <p align="center">序号</p> </td> <td width="19%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="14%" rowspan="2"> <p align="center">产率</p> </td> <td width="23%" colspan="2"> <p align="center">品位</p> </td> <td width="29%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="12%"> <p align="center">Au*</p> </td> <td width="10%"> <p align="center">As</p> </td> <td width="14%"> <p align="center">Au</p> </td> <td width="14%"> <p align="center">As</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">11.25</p> </td> <td width="12%"> <p align="center">11.65</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">65.21</p> </td> <td width="14%"> <p align="center">10.00</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">88.75</p> </td> <td width="12%"> <p align="center">0.79</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">34.79</p> </td> <td width="14%"> <p align="center">90.00</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">2.01</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">13.62</p> </td> <td width="12%"> <p align="center">10.91</p> </td> <td width="10%"> <p align="center">0.11</p> </td> <td width="14%"> <p align="center">74.67</p> </td> <td width="14%"> <p align="center">18.73</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">86.38</p> </td> <td width="12%"> <p align="center">0.58</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">25.33</p> </td> <td width="14%"> <p align="center">81.27</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.99</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">13.46</p> </td> <td width="12%"> <p align="center">10.58</p> </td> <td width="10%"> <p align="center">0.10</p> </td> <td width="14%"> <p align="center">72.29</p> </td> <td width="14%"> <p align="center">14.96</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">86.54</p> </td> <td width="12%"> <p align="center">0.63</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">27.71</p> </td> <td width="14%"> <p align="center">85.04</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.97</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">9.37</p> </td> <td width="12%"> <p align="center">14.01</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">67.67</p> </td> <td width="14%"> <p align="center">10.54</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">90.63</p> </td> <td width="12%"> <p align="center">0.69</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">32.33</p> </td> <td width="14%"> <p align="center">89.46</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.94</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">10.87</p> </td> <td width="12%"> <p align="center">13.87</p> </td> <td width="10%"> <p align="center">0.11</p> </td> <td width="14%"> <p align="center">76.15</p> </td> <td width="14%"> <p align="center">9.96</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">89.13</p> </td> <td width="12%"> <p align="center">0.53</p> </td> <td width="10%"> <p align="center">0.12</p> </td> <td width="14%"> <p align="center">23.86</p> </td> <td width="14%"> <p align="center">90.04</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.98</p> </td> <td width="10%"> <p align="center">0.12</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">12.24</p> </td> <td width="12%"> <p align="center">11.93</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">73.38</p> </td> <td width="14%"> <p align="center">11.02</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">87.76</p> </td> <td width="12%"> <p align="center">0.60</p> </td> <td width="10%"> <p align="center">0.10</p> </td> <td width="14%"> <p align="center">26.62</p> </td> <td width="14%"> <p align="center">88.98</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.99</p> </td> <td width="10%"> <p align="center">0.10</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">10.86</p> </td> <td width="12%"> <p align="center">12.99</p> </td> <td width="10%"> <p align="center">0.07</p> </td> <td width="14%"> <p align="center">71.25</p> </td> <td width="14%"> <p align="center">8.45</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">89.14</p> </td> <td width="12%"> <p align="center">0.64</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">28.75</p> </td> <td width="14%"> <p align="center">91.55</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">1.98</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">12.00</p> </td> <td width="12%"> <p align="center">12.71</p> </td> <td width="10%"> <p align="center">0.08</p> </td> <td width="14%"> <p align="center">75.86</p> </td> <td width="14%"> <p align="center">8.72</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">88.00</p> </td> <td width="12%"> <p align="center">0.55</p> </td> <td width="10%"> <p align="center">0.11</p> </td> <td width="14%"> <p align="center">24.15</p> </td> <td width="14%"> <p align="center">91.28</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">2.01</p> </td> <td width="10%"> <p align="center">0.11</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="11%" rowspan="3"> <p align="center">?/p> </td> <td width="19%"> <p align="center">金粗_</p> </td> <td width="14%"> <p align="center">13.37</p> </td> <td width="12%"> <p align="center">11.11</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="14%"> <p align="center">73.17</p> </td> <td width="14%"> <p align="center">10.03</p> </td> </tr> <tr> <td width="19%"> <p align="center"></p> </td> <td width="14%"> <p align="center">86.63</p> </td> <td width="12%"> <p align="center">0.63</p> </td> <td width="10%"> <p align="center">0.12</p> </td> <td width="14%"> <p align="center">26.83</p> </td> <td width="14%"> <p align="center">89.97</p> </td> </tr> <tr> <td width="19%"> <p align="center">原矿</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">2.03</p> </td> <td width="10%"> <p align="center">0.12</p> </td> <td width="14%"> <p align="center">100.00</p> </td> <td width="14%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p align="left">注:表中?的单位ؓg/t</p> <p>p5可见Q随石灰、氯化铵用量的增加,金Q选指标变化较大。当石灰用量?50g/t、氯化铵用量?000g/tӞ金的选别指标最好。因此选取石灰250g/t、氯化铵1000g/t作ؓ后箋试验条g?/p> <p>2.2 _N条件试?/p> <p align="left">2.2.1 抑制剂种c试?/p> <p>Z得到合格的金_Q进行了金粗__N条件试验,q在_N试验中加入脉石矿物抑制剂,考察不同U类的脉石矿物抑制剂寚w_N指标的影响Q同时加入少量的氯化铵保护金矿物。试验流E图见图1Q试验结果见??/p> <p align="center"><img src="/ewebeditor/uploadfile/20180918153325836001.png" style="width: 630px; height: 350px;"></p> <p>?  金精选抑制剂U类条g试验程?/p> <p> </p> <p>?  金精选抑制剂U类寚w选矿指标的媄?%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="21%" rowspan="2"> <p align="center">抑制剂种c?/p> </td> <td width="17%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="13%" rowspan="2"> <p align="center">产率</p> </td> <td width="21%" colspan="2"> <p align="center">品位</p> </td> <td width="26%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="11%"> <p align="center">Au*</p> </td> <td width="9%"> <p align="center">As</p> </td> <td width="13%"> <p align="center">Au</p> </td> <td width="13%"> <p align="center">As</p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">水玻?/p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.31 </p> </td> <td width="11%"> <p align="center">21.60 </p> </td> <td width="9%"> <p align="center">0.07 </p> </td> <td width="13%"> <p align="center">68.84 </p> </td> <td width="13%"> <p align="center">4.42 </p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">5.03 </p> </td> <td width="11%"> <p align="center">2.64 </p> </td> <td width="9%"> <p align="center">0.08 </p> </td> <td width="13%"> <p align="center">6.71 </p> </td> <td width="13%"> <p align="center">4.02 </p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.66 </p> </td> <td width="11%"> <p align="center">0.55 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">24.46 </p> </td> <td width="13%"> <p align="center">91.56 </p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="11%"> <p align="center">1.98 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">酸?/p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.52 </p> </td> <td width="11%"> <p align="center">20.87 </p> </td> <td width="9%"> <p align="center">0.07 </p> </td> <td width="13%"> <p align="center">68.72 </p> </td> <td width="13%"> <p align="center">4.56 </p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">4.86 </p> </td> <td width="11%"> <p align="center">2.47 </p> </td> <td width="9%"> <p align="center">0.07 </p> </td> <td width="13%"> <p align="center">6.06 </p> </td> <td width="13%"> <p align="center">3.40 </p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.62 </p> </td> <td width="11%"> <p align="center">0.56 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">25.21 </p> </td> <td width="13%"> <p align="center">92.03 </p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="11%"> <p align="center">1.98 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">I白</p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.78</p> </td> <td width="11%"> <p align="center">20.18</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">69.46</p> </td> <td width="13%"> <p align="center">5.27</p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">4.56</p> </td> <td width="11%"> <p align="center">2.54</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">5.88</p> </td> <td width="13%"> <p align="center">3.55</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.66</p> </td> <td width="11%"> <p align="center">0.55</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">24.67</p> </td> <td width="13%"> <p align="center">91.18</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">1.97</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="13%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p> </p> <p>p6可见Q在金精选时加入抑制剂水ȝ和碳酔R后,效果不明显。主要表现在金精矿中金品位变化不大,而金回收率却有所下降。因此综合考虑军_在金_N时采用I白_N不加抑制剂?/p> <p align="left">2.2.2 氯化는量试?/p> <p>考虑到矿pH值高时会寚w矿物有所抑制<sup>[7]</sup>Q所以在金精选时加入氯化铵保护金矿物Q本试验主要考察了氯化铵用量寚w_N指标的影响Q试验结果见??/p> <p>?  金精选氯化铵用量寚w选矿指标的媄?%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="21%" rowspan="2"> <p align="center">氯化는?/p> <p align="center">g/t</p> </td> <td width="17%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="13%" rowspan="2"> <p align="center">产率</p> </td> <td width="21%" colspan="2"> <p align="center">品位</p> </td> <td width="26%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="11%"> <p align="center">Au*</p> </td> <td width="9%"> <p align="center">As</p> </td> <td width="13%"> <p align="center">Au</p> </td> <td width="13%"> <p align="center">As</p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">0</p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">5.83 </p> </td> <td width="11%"> <p align="center">22.69 </p> </td> <td width="9%"> <p align="center">0.07 </p> </td> <td width="13%"> <p align="center">66.81 </p> </td> <td width="13%"> <p align="center">4.53 </p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">5.37 </p> </td> <td width="11%"> <p align="center">3.36 </p> </td> <td width="9%"> <p align="center">0.09 </p> </td> <td width="13%"> <p align="center">9.11 </p> </td> <td width="13%"> <p align="center">5.37 </p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.80 </p> </td> <td width="11%"> <p align="center">0.54 </p> </td> <td width="9%"> <p align="center">0.09 </p> </td> <td width="13%"> <p align="center">24.08 </p> </td> <td width="13%"> <p align="center">90.10 </p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="11%"> <p align="center">1.98 </p> </td> <td width="9%"> <p align="center">0.09 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">150</p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.46 </p> </td> <td width="11%"> <p align="center">21.43 </p> </td> <td width="9%"> <p align="center">0.07 </p> </td> <td width="13%"> <p align="center">68.90 </p> </td> <td width="13%"> <p align="center">4.52 </p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">4.93 </p> </td> <td width="11%"> <p align="center">2.84 </p> </td> <td width="9%"> <p align="center">0.08 </p> </td> <td width="13%"> <p align="center">6.97 </p> </td> <td width="13%"> <p align="center">3.94 </p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.61 </p> </td> <td width="11%"> <p align="center">0.55 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">24.14 </p> </td> <td width="13%"> <p align="center">91.53 </p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="11%"> <p align="center">2.01 </p> </td> <td width="9%"> <p align="center">0.10 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> <td width="13%"> <p align="center">100.00 </p> </td> </tr> <tr> <td width="21%" rowspan="4"> <p align="center">300</p> </td> <td width="17%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.78</p> </td> <td width="11%"> <p align="center">20.18</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">69.46</p> </td> <td width="13%"> <p align="center">5.27</p> </td> </tr> <tr> <td width="17%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">4.56</p> </td> <td width="11%"> <p align="center">2.54</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">5.88</p> </td> <td width="13%"> <p align="center">3.55</p> </td> </tr> <tr> <td width="17%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.66</p> </td> <td width="11%"> <p align="center">0.55</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">24.67</p> </td> <td width="13%"> <p align="center">91.18</p> </td> </tr> <tr> <td width="17%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">1.97</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="13%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p> </p> <p>p7可见Q在金精选时加入氯化铵后Q效果明显。主要表现在金的回收率逐渐升高Q而金的品位媄响不大。当氯化는量ؓ300g/t时效果最好,所以后l试验在金第一ơ精选时加入氯化?00g/t?/p> <p align="left">2.2.3 _N次数试?/p> <p>Z得到合格的金_Q进行了金精选次数条件试验,试验l果见表8?/p> <p>?  金精选次数对金选矿指标的媄?%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="18%" rowspan="2"> <p align="center">_N次?/p> </td> <td width="18%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="13%" rowspan="2"> <p align="center">产率</p> </td> <td width="22%" colspan="2"> <p align="center">品位</p> </td> <td width="27%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="11%"> <p align="center">Au*</p> </td> <td width="10%"> <p align="center">As</p> </td> <td width="13%"> <p align="center">Au</p> </td> <td width="13%"> <p align="center">As</p> </td> </tr> <tr> <td width="18%" rowspan="4"> <p align="center">_N一?/p> </td> <td width="18%"> <p align="center">金精?/p> </td> <td width="13%"> <p align="center">6.78</p> </td> <td width="11%"> <p align="center">20.18</p> </td> <td width="10%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">69.46</p> </td> <td width="13%"> <p align="center">5.27</p> </td> </tr> <tr> <td width="18%"> <p align="center">金中?</p> </td> <td width="13%"> <p align="center">4.56</p> </td> <td width="11%"> <p align="center">2.54</p> </td> <td width="10%"> <p align="center">0.07</p> </td> <td width="13%"> <p align="center">5.88</p> </td> <td width="13%"> <p align="center">3.55</p> </td> </tr> <tr> <td width="18%"> <p align="center"></p> </td> <td width="13%"> <p align="center">88.66</p> </td> <td width="11%"> <p align="center">0.55</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">24.67</p> </td> <td width="13%"> <p align="center">91.18</p> </td> </tr> <tr> <td width="18%"> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">1.97</p> </td> <td width="10%"> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">100.00</p> </td> <td width="13%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="18%"> <p align="center">_N两?/p> </td> <td width="18%"> <p align="center">金精?/p> <p align="center">金中?</p> <p align="center">金中?</p> <p align="center"></p> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">5.42</p> <p align="center">4.84</p> <p align="center">1.62</p> <p align="center">88.12</p> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">24.09</p> <p align="center">3.42</p> <p align="center">3.34</p> <p align="center">0.55</p> <p align="center">2.01</p> </td> <td width="10%"> <p align="center">0.08</p> <p align="center">0.09</p> <p align="center">0.08</p> <p align="center">0.10</p> <p align="center">0.10</p> </td> <td width="13%"> <p align="center">64.96</p> <p align="center">8.24</p> <p align="center">2.69</p> <p align="center">24.11</p> <p align="center">100.00</p> </td> <td width="13%"> <p align="center">4.34</p> <p align="center">1.36</p> <p align="center">1.30</p> <p align="center">90.01</p> <p align="center">100.00</p> </td> </tr> <tr> <td width="18%"> <p align="center">_N三?/p> </td> <td width="18%"> <p align="center">金精?/p> <p align="center">金中?</p> <p align="center">金中?</p> <p align="center">金中?</p> <p align="center"></p> <p align="center">原矿</p> </td> <td width="13%"> <p align="center">4.98</p> <p align="center">4.87</p> <p align="center">1.54</p> <p align="center">0.46</p> <p align="center">88.15</p> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">25.80</p> <p align="center">3.36</p> <p align="center">3.36</p> <p align="center">2.29</p> <p align="center">0.53</p> <p align="center">1.98</p> </td> <td width="10%"> <p align="center">0.07</p> <p align="center">0.09</p> <p align="center">0.07</p> <p align="center">0.06</p> <p align="center">0.09</p> <p align="center">0.09</p> </td> <td width="13%"> <p align="center">64.89</p> <p align="center">8.26</p> <p align="center">2.61</p> <p align="center">0.53</p> <p align="center">23.70</p> <p align="center">100.00</p> </td> <td width="13%"> <p align="center">3.87</p> <p align="center">4.87</p> <p align="center">1.20</p> <p align="center">0.31</p> <p align="center">89.75</p> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p> </p> <p>p8可见Q在金粗_l过三次_N后可以得到品位较高的金_Q此时可以获得含?5.80g/t、金回收?4.89%Q含?.07%、砷回收?.87%的金_?/p> <p>虽然金精矿的品位?5.80g/tQ但q是偏低Q还有进一步提升的I间Q而如果按照常规的_N试验通过增加_N次数来提高金的品位Q效果肯定不理想。在原矿试样鉴定时发现金与硫、铁的相x较强,大多数金矿物被包裹在和脉石矿物中,要想q一步提高金的品位,必须q行金粗_再磨Q促q金矿物充分单体解离<sup>[8,9]</sup>Q金品位得到有效的提高?/p> <p align="left">2.2.4 _再磨l度试验</p> <p>本试验主要考察了金_精矿再细度对金选矿指标的媄响,试验程图见?Q试验结果见??/p> <p><img src="/ewebeditor/uploadfile/20180918153325440002.png" style="width: 630px; height: 351px;"></p> <p>?  金粗_再磨l度条g试验程?/p> <p>?  金粗_再磨l度寚w选矿指标的媄?%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="24%" rowspan="2"> <p align="center">再磨l度</p> </td> <td width="16%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="12%" rowspan="2"> <p align="center">产率</p> </td> <td width="20%" colspan="2"> <p align="center">品位</p> </td> <td width="25%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="11%"> <p align="center">Au*</p> </td> <td width="9%"> <p align="center">As</p> </td> <td width="12%"> <p align="center">Au</p> </td> <td width="12%"> <p align="center">As</p> </td> </tr> <tr> <td width="24%" rowspan="4"> <p align="center">不再?/p> <p align="center">-0.025mm含量</p> <p align="center">?5%</p> </td> <td width="16%"> <p align="center">金精?/p> </td> <td width="12%"> <p align="center">6.78</p> </td> <td width="11%"> <p align="center">20.18</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="12%"> <p align="center">69.46</p> </td> <td width="12%"> <p align="center">5.27</p> </td> </tr> <tr> <td width="16%"> <p align="center">金中?</p> </td> <td width="12%"> <p align="center">4.56</p> </td> <td width="11%"> <p align="center">2.54</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="12%"> <p align="center">5.88</p> </td> <td width="12%"> <p align="center">3.55</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.66</p> </td> <td width="11%"> <p align="center">0.55</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">24.67</p> </td> <td width="12%"> <p align="center">91.18</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">1.97</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="24%" rowspan="4"> <p align="center">-0.025mm含量</p> <p align="center">?5%</p> </td> <td width="16%"> <p align="center">金精?/p> </td> <td width="12%"> <p align="center">5.01</p> </td> <td width="11%"> <p align="center">28.97</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="12%"> <p align="center">71.50</p> </td> <td width="12%"> <p align="center">3.51</p> </td> </tr> <tr> <td width="16%"> <p align="center">金中?</p> </td> <td width="12%"> <p align="center">6.25</p> </td> <td width="11%"> <p align="center">2.04</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">6.28</p> </td> <td width="12%"> <p align="center">5.63</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.74</p> </td> <td width="11%"> <p align="center">0.51</p> </td> <td width="9%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">22.22</p> </td> <td width="12%"> <p align="center">90.87</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.03</p> </td> <td width="9%"> <p align="center">0.10</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="24%" rowspan="4"> <p align="center">-0.025mm含量</p> <p align="center">?5%</p> </td> <td width="16%"> <p align="center">金精?/p> </td> <td width="12%"> <p align="center">4.67</p> </td> <td width="11%"> <p align="center">30.30</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="12%"> <p align="center">70.40</p> </td> <td width="12%"> <p align="center">3.63</p> </td> </tr> <tr> <td width="16%"> <p align="center">金中?</p> </td> <td width="12%"> <p align="center">6.57</p> </td> <td width="11%"> <p align="center">2.21</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">7.22</p> </td> <td width="12%"> <p align="center">6.57</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.76</p> </td> <td width="11%"> <p align="center">0.51</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">22.38</p> </td> <td width="12%"> <p align="center">89.80</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.01</p> </td> <td width="9%"> <p align="center">0.09</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> <tr> <td width="24%" rowspan="4"> <p align="center">-0.025mm含量</p> <p align="center">?5%</p> </td> <td width="16%"> <p align="center">金精?/p> </td> <td width="12%"> <p align="center">4.42</p> </td> <td width="11%"> <p align="center">31.10</p> </td> <td width="9%"> <p align="center">0.07</p> </td> <td width="12%"> <p align="center">68.73</p> </td> <td width="12%"> <p align="center">3.87</p> </td> </tr> <tr> <td width="16%"> <p align="center">金中?</p> </td> <td width="12%"> <p align="center">6.78</p> </td> <td width="11%"> <p align="center">2.45</p> </td> <td width="9%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">8.31</p> </td> <td width="12%"> <p align="center">6.78</p> </td> </tr> <tr> <td width="16%"> <p align="center"></p> </td> <td width="12%"> <p align="center">88.80</p> </td> <td width="11%"> <p align="center">0.52</p> </td> <td width="9%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">22.96</p> </td> <td width="12%"> <p align="center">89.35</p> </td> </tr> <tr> <td width="16%"> <p align="center">原矿</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="11%"> <p align="center">2.00</p> </td> <td width="9%"> <p align="center">0.08</p> </td> <td width="12%"> <p align="center">100.00</p> </td> <td width="12%"> <p align="center">100.00</p> </td> </tr> </tbody> </table> <p> </p> <p>p9可知Q随着金粗_矿l度的增加,金的品位逐渐升高。说明提高金_精矿再细度对金品位的提高有明昄效果。当金粗_再磨l度?5%Ӟ金的选别指标最高,所以选取金粗_再磨l度Q?0.025mm含量Qؓ85%?/p> <p>2.3 闭\试验</p> <p>Zq一步验证金_精矿再工艺方案研I结果和考察中矿q回ҎQ选的影响<sup>[10]</sup>Q在开路流E试验的基础上进行了金粗_再磨工艺Ҏ闭\程试验。闭路试验流E图见图3Q试验结果见?0?/p> <p>?0  金粗_再磨工艺Ҏ闭\程试验l果/%</p> <table style="border-collapse:collapse;" border="1" bordercolor="#000000" cellspacing="0" cellpadding="0" width="100%"> <tbody> <tr> <td width="22%" rowspan="2"> <p align="center">产品名称</p> </td> <td width="16%" rowspan="2"> <p align="center">产率</p> </td> <td width="27%" colspan="2"> <p align="center">品位</p> </td> <td width="33%" colspan="2"> <p align="center">回收?/p> </td> </tr> <tr> <td width="14%"> <p align="center">Au*</p> </td> <td width="12%"> <p align="center">As</p> </td> <td width="16%"> <p align="center">Au</p> </td> <td width="16%"> <p align="center">As</p> </td> </tr> <tr> <td width="22%"> <p align="center">金精?/p> </td> <td width="16%"> <p align="center">3.48 </p> </td> <td width="14%"> <p align="center">40.63 </p> </td> <td width="12%"> <p align="center">0.07 </p> </td> <td width="16%"> <p align="center">70.70 </p> </td> <td width="16%"> <p align="center">2.71 </p> </td> </tr> <tr> <td width="22%"> <p align="center"></p> </td> <td width="16%"> <p align="center">96.52 </p> </td> <td width="14%"> <p align="center">0.61 </p> </td> <td width="12%"> <p align="center">0.09 </p> </td> <td width="16%"> <p align="center">29.30 </p> </td> <td width="16%"> <p align="center">97.29 </p> </td> </tr> <tr> <td width="22%"> <p align="center">原矿</p> </td> <td width="16%"> <p align="center">100.00 </p> </td> <td width="14%"> <p align="center">2.00 </p> </td> <td width="12%"> <p align="center">0.09 </p> </td> <td width="16%"> <p align="center">100.00 </p> </td> <td width="16%"> <p align="center">100.00 </p> </td> </tr> </tbody> </table> <p> </p> <p>p10可知Q采用金_精矿再工艺流E可以获得金40.63g/t、金回收?0.70%Q含?.07%、砷回收?.71%的金_?/p> <p><img src="/ewebeditor/uploadfile/20180918153325929003.png" style="width: 550px; height: 528px;"></p> <p>?  金粗_再磨工艺Ҏ闭\试验程?/p> <p>3 l论</p> <p>1Q?该金矿主要金属矿物有自然金、银金矿、黄铜矿、硫锑铜银矿-砷铜银ѝ闪锌矿锆石、方铅矿、黄铁矿、毒砂、褐铁矿、赤铁矿、磁铁矿、磁黄铁矿等Q非金属矿物有石英、云母、绢云母、电气石、绿泥石、惔质等。矿石中金含量ؓ2.00g/tQ具有一定的开发利用h倹{?/p> <p>2Q?对原矿进行了化学多元素分析和原矿试样鉴定研究Q研I结果表明该矿石中砷的含量较低,而硫、铁的含量相对较高。金与砷的相x较,而与的相关性较强。金主要赋存在硫和脉石矿物中Q同时也有少部分金以铉ѝ独立金矿物的Ş式存在,寚w矿较ؓ有利?/p> <p>3Q?Ҏ该矿工艺矿物学性质Q采用了金粗_再磨和金_精矿不再磨两种工艺Ҏ对其q行了选矿试验研究。研I结果表明,采用金粗_再磨工艺Q即采用丁铵黑药作ؓ金矿物捕收剂Q石CL物抑制剂Q氯化铵作金矿物zd剂Q选金矿物Q将_选得到的金粗_q行再磨Q再后_N三ơ, 可以获得含金40.63g/t、金回收?0.70%Q含?.07%、砷回收?.71%的金_?/p> <p> <span style="font-size: 9pt;"> </span></p> <p></p> <p style="text-align: left;">作者:常慕q? 林俊?nbsp;卫阳Q新疆宝地矿业有限责d司)本文发表于《现代矿业?018q第8?/p> <p style="text-align: left;"><a href="http://www.gchcwr.icu/website/article/1110/B2C8F2685093434C983DDDBC608196BD.html" style="margin: 0px; padding: 0px; box-sizing: border-box; background: rgb(255, 255, 255); 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