| 多硫化钠浸金研究 |
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| 引用本文： | 杨天足,陈希鸿,宾万达,陈庆邦,卢宜源. 多硫化钠浸金研究[J]. 中南大学学报(自然科学版), 1992, 0(6) |
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| 作者姓名： | 杨天足 陈希鸿 宾万达 陈庆邦 卢宜源 |
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| 作者单位： | 中南矿冶学院有色冶金系，中南矿冶学院有色冶金系，中南矿冶学院有色冶金系，中南矿冶学院有色冶金系，中南矿冶学院有色冶金系 |
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| 摘 要： | 本文中研究了用多硫化钠作浸出剂浸出锑锍中的金。根据实验和理论分析,认为多硫化物浸金具有如下反应: 6Au 2S~(2-) S_4~(2-)=6AuS~- 8Au 3S~(2-) S_5~(2-)=8AuS~- 6Au 2HS~- 2OH~- S_4~(2-)=6AuS~- 2H_2O 8Au 3HS~- 3OH~- S_5~(2-)=8AuS~- 3H_2O考察了粒度、温度、硫化钠用量、加硫量、氢氧化钠浓度、液固比、时间等因素对金浸出率的影响。在研究所得的最佳条件下,金的浸出率稳定在93％以上。
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| 关 键 词： | 多硫化物 金浸出 锑锍 |
GOLD LEACHING IN SODIUM POLYSULFIDE SOLUTION |
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| Yang Tianzu,Chen Xihong,Bin Wanda,Chen Qingbang,Lu Yiyuan. GOLD LEACHING IN SODIUM POLYSULFIDE SOLUTION[J]. Journal of Central South University:Science and Technology, 1992, 0(6) |
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| Authors: | Yang Tianzu Chen Xihong Bin Wanda Chen Qingbang Lu Yiyuan |
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| Affiliation: | Yang Tianzu;Chen Xihong;Bin Wanda;Chen Qingbang;Lu Yiyuan Department of Nonferrous Metallurgy |
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| Abstract: | In this paper, it is reported that gold in the antimony matte is leached in thesodium polysulfide solution. On the basis of theoretical analysis and experimentalresults, it is suggested that gold leaching in the sodium polysulfide solution canbe described as follows: 6Au 2S~(2-) S_4~(2-)=6AuS~- 8Au 3S~(2-) S_5~(2-)=8AuS~- 6Au 2HS~- 2OH~- S_4~(2-)=6AuS~- 2H_2O 8Au 3HS~- 3OH~- S_5~(2-)=8AuS~- 3H_2O The effects of particle size of the antimony matte, temperature, usages ofsodium sulfide and sulfur, concentration of sodium hydroxide, L/S ratio and re-tention time on gold extraction were investigated. Under optimum conditionobtained from the experiment, the gold extraction was over 93%. |
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| Keywords: | polysulfide gold extraction antimony matte |
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