| 低品位双重难处理金矿石工艺矿物学及浸金影响因素 |
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| 引用本文： | 杨洪英,巩恩普,杨立. 低品位双重难处理金矿石工艺矿物学及浸金影响因素[J]. 东北大学学报(自然科学版), 2008, 29(12): 1742-1745. DOI: - |
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| 作者姓名： | 杨洪英 巩恩普 杨立 |
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| 作者单位： | 东北大学,材料与冶金学院,辽宁,沈阳,110004;东北大学,资源与土木工程学院,辽宁,沈阳,110004 |
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| 基金项目： | 国家自然科学基金资助项目(5067402950274024); 国家高技术研究发展计划项目(2006AA06Z127); 教育部高等学校博士学科点专项科研基金资助项目(20060145015); 辽宁省自然科学基金资助项目(20052030) |
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| 摘 要： | 试验所用矿石来自我国云南某金矿,该矿含金2.4 g/t,砷0.97%,碳1.47%.它是典型的低品位含碳双重难处理金矿石,浮选精矿-氰化提金,金浸出率为10.43%;浮选精矿-焙烧-氰化工艺,金浸出率为46.52%,属于极难浸金矿.矿石主要金属矿物为黄铁矿、毒砂.脉石矿物主要为石英、绢云母、白云石、方解石、伊利石黏土矿物等.金的赋存状态绝大多数是"不可见金",主要为次显微、超显微的包裹金以及胶体金.金主要包裹于毒砂和黄铁矿晶体中.矿石中金矿物主要为自然金,少为银金矿.矿石金回收率低的原因主要是包裹金,矿石含砷、碳质以及黏土矿物.
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| 关 键 词： | 低品位 双重难处理金矿石 碳质 工艺矿物学 浸金 |
Process Mineralogy of Low-Grade Double Refractory Gold Ore and Influencing Factor on Gold Leaching |
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| YANG Hong-ying,GONG En-pu,YANG Li. Process Mineralogy of Low-Grade Double Refractory Gold Ore and Influencing Factor on Gold Leaching[J]. Journal of Northeastern University(Natural Science), 2008, 29(12): 1742-1745. DOI: - |
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| Authors: | YANG Hong-ying GONG En-pu YANG Li |
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| Affiliation: | YANG Hong-ying1,GONG En-pu2,YANG Li1(1.School of Materials & Metallurgy,Northeastern University,Shenyang 110004,China,2.School of Resources & Civil Engineering,China.) |
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| Abstract: | The samples used were from a gold mine in Yunnan Province,which are all of the typical of low-grade double refractory gold ore containing 2.4 g/t Au,0.97 wt% As and 1.47 wt% C.The leaching rate of gold as a result of flotation concentrates and extraction by cyanidation is 10.43%,and it becomes 46.52% if the extraction process is roasting-cyanidation,which is thus referred to as extraordinary refractory gold ore in which the metallic minerals are mainly the pyrite and arsenopyrite and gangue minerals mainly ... |
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| Keywords: | low-grade double refractory gold ore carbonaceous matter process mineralogy gold leaching |
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