| 金矿石堆浸前预处理工艺 |
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| 引用本文： | 王金祥,胡振亚. 金矿石堆浸前预处理工艺[J]. 黄金, 2005, 26(7): 31-34 |
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| 作者姓名： | 王金祥 胡振亚 |
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| 作者单位： | 西安巨石生物堆浸工程技术有限公司;中国冶金进出口辽宁有限公司 |
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| 摘 要： | 采用制粒技术可以有效克服矿石泥质成分对浸堆渗透性的影响。生物预氧化技术的采用可以使硫化矿物(黄铁矿、砷黄铁矿等)包裹金矿物类型的低品位矿石用堆浸方法处理。焙烧或氯化则可使矿石中的“劫金”碳质物得到钝化，从而消除碳对金浸出率的影响。采用氨氧浸出、酸浸等方法可消除矿石中消耗氰化物的铜、锌等贱金属，从而提高堆浸金浸出率。
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| 关 键 词： | 难处理金矿石 堆浸 预处理 |
| 文章编号： | 1001-1277(2005)07-0031-03 |
| 修稿时间： | 2005-01-16 |
A review of pretreatment processes for refractory gold ores prior to heap-leaching |
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| Wang Jinxiang,Hu Zhenya. A review of pretreatment processes for refractory gold ores prior to heap-leaching[J]. Gold, 2005, 26(7): 31-34 |
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| Authors: | Wang Jinxiang Hu Zhenya |
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| Affiliation: | Wang Jinxiang 1,Hu Zhenya 2 |
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| Abstract: | Agglomeration-heap leaching could overcome the deleterious effects of clay and slime materials on permeability of ore heaps; Bio-oxidation could liberate gold enclosed by sulfides,such as pyrite,arsenopyrite,etc.to allow the ores treated by heap-leaching. Roasting or chlorination could deactivate carbonaceous materials to eliminate theirs effects on recovering gold. Ammonia-cyanide and acid leaching surmount cyanide consumption of base metals as copper,zinc. |
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| Keywords: | refractory gold ore heap-leaching pretreatment |
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