| 硫-石灰溶液中氧压浸出金精矿 |
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| 引用本文： | 方兆珩,韩宝玲,石伟.硫-石灰溶液中氧压浸出金精矿[J].黄金科学技术,2002,10(3):38-43. |
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| 作者姓名： | 方兆珩 韩宝玲 石伟 |
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| 作者单位： | 中国科学院过程工程研究所,北京,100080 |
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| 基金项目： | 国家自然科学基金资助 (5 9974 0 2 5 ) |
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| 摘 要： | 研究了石灰液体系中元素硫加压氧化浸金过程。通过四变量三水平的实验设计,发现元素硫与氢氧根的摩尔比及氧耗量是影响金浸出的最重要因素。单变量试验表明,适宜的S0/OH摩尔比为1.0～1.2,最优氧耗量为0.38～0.55 NL/g S0,浸出过程中终pH 应为3.5～6.0。最优条件下金的一段浸出率为82%～85%,二段浸出可达91%。
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| 关 键 词： | 元素硫-石灰系 氧压浸金 非氰 |
| 文章编号： | 1005-2518(2002)03-0038-06 |
| 收稿时间： | 2001-08-03 |
| 修稿时间： | 2001年8月3日 |
GOLD LEACHING OF CONCENTRATES BY Ca(OH)2 SOLUTION MIXED WITH ELEMENTAL SULFUR UNDER OXYGEN PRESSURE |
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| FANG Zhaoheng,SHI Wei,HAN Baoling.GOLD LEACHING OF CONCENTRATES BY Ca(OH)2 SOLUTION MIXED WITH ELEMENTAL SULFUR UNDER OXYGEN PRESSURE[J].Gold Science and Technololgy,2002,10(3):38-43. |
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| Authors: | FANG Zhaoheng SHI Wei HAN Baoling |
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| Affiliation: | Institute of Process Engineering,Chinese Academy of Scinces, Beijing 100080 , China |
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| Abstract: | A process of leaching gold from a concent rate with Ca (OH)2 solution mixed with elemental sulfur under oxygen pressure was investigated. A series of experiments were devised and preformed to recognize the main effective factors. Further investigates show that the highest leached Au was achieved when the moore ratio of the elemental sulfur to the hydroxyl was ranged from 1.0 to 1.2 and the consumption of oxygen in the process from 0.38 to 0.55NL/gS0. Under these conditions the final pH was from 3.5 to 6. 0. 82 %～85 % Au was leached in one time leaching under optimized conditions, and 91% in two time leaching. |
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| Keywords: | gold leaching elemental sulfur Ca(OH) 2 oxygen pressure |
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