| 硫脲法从低品位含金硫化矿及其焙砂酸浸渣中回收金 |
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| 引用本文： | 李进善 张福鑫. 硫脲法从低品位含金硫化矿及其焙砂酸浸渣中回收金[J]. 黄金, 1993, 14(8): 32-36 |
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| 作者姓名： | 李进善 张福鑫 |
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| 作者单位： | 中科院化工冶金所 北京100080(李进善，张福鑫，黄淑兰)，中科院化工冶金所 北京100080(朱屯) |
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| 摘 要： | 本工作采用硫脲法从钴铜硫化矿及其经硫酸化焙烧,酸浸钴铜后的渣中对低品位金进行了浸取研究.直接浸取硫化矿,金的溶出率低,操作参数如电位、pH值等不稳定,试剂耗量大;而从酸浸渣中浸取金的溶出率高,可达91.0%以上,数据重现性好,试剂消耗大大降低,操作稳定.优化了浸取条件,从而降低了硫脲消耗,耗量是1.78kg/t矿.最后,用还原铁粉和活性炭从硫脲浸取富液中回收金进行了探索,效果良好.试验结果表明,硫脲法具有潜在的工业性应用推广价值.
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| 关 键 词： | 硫脲法 浸取 金 回收 含金硫化矿 |
Thiourea leaching of low grade gold-bearing sulphide ore and its cinder after removing Co and Cu |
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| Li Jinshan. Thiourea leaching of low grade gold-bearing sulphide ore and its cinder after removing Co and Cu[J]. Gold, 1993, 14(8): 32-36 |
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| Authors: | Li Jinshan |
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| Abstract: | Thiourea leaching of low-grade gold-bearing sulPhide ore(Au0.34g/T) and the residue of its sulPhating cinder (Au0.92g/T)after remoying Co Cu with sulPhuric acid was investigated.For direct leaching of sulPhids ore, the gold leaching rate was low(79.4~88.2%),the leaching operation was difficult and the consumption of reagents was high. However for leaching the residue,the leaching rate of gold was significantly improved uP to above 91.0%, the oPeration became much easier and the consumption of reagents was largely decreased.The conditions of leaching oPeration of the residue were oPtimized.The consumption of thiourea was 1.78kg/T ore,thus,thiourea technique is promising for commercial application for this kind of materials. |
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| Keywords: | thiourea leaching gold |
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