| 用加压氧化-硫脲浸出法从滇西低品位金矿石中回收金 |
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| 引用本文： | 和晓才,谢刚,李怀仁,杨大锦,陈愚,徐庆鑫,陈家辉.用加压氧化-硫脲浸出法从滇西低品位金矿石中回收金[J].湿法冶金,2012,31(2):99-102. |
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| 作者姓名： | 和晓才 谢刚 李怀仁 杨大锦 陈愚 徐庆鑫 陈家辉 |
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| 作者单位： | 昆明冶金研究院,云南昆明,650031 |
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| 摘 要： | 研究了用加压氧化-硫脲浸出法从滇西低品位金矿中回收金。低品位金矿石先在加压反应釜中加压氧化,之后用硫脲浸出金。考察了氧压、温度、反应时间及添加剂尿素及木质磺酸钠对加压氧化及硫脲浸出金的影响,确定了工艺最佳条件。最佳条件下,金浸出率为94%。
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| 关 键 词： | 低品位金矿 加压氧化 硫脲 金 浸出 |
Recovery of Gold From A Low Grade Gold Ore in West Yunnan by Oxygen Pressure-Thiourea Leaching |
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| HE Xiao-cai
,
XIE Gang
,
LI Huai-ren
,
YANG Da-jin
,
CHEN Yu
,
XU Qing-xin
,
CHEN Jia-hui.Recovery of Gold From A Low Grade Gold Ore in West Yunnan by Oxygen Pressure-Thiourea Leaching[J].Hydrometallurgy of China,2012,31(2):99-102. |
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| Authors: | HE Xiao-cai XIE Gang LI Huai-ren YANG Da-jin CHEN Yu XU Qing-xin CHEN Jia-hui |
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| Affiliation: | (Kunming Metallurgy Research Institute,Kunming 650031,China) |
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| Abstract: | The process of recovery gold from a low grade gold ore in west Yunnan by oxygen pressure-thiourea leaching was studied.The oxidizing of the ore was carried out in a pressure reactor.Then the treated ore was leached using thiourea.The influencing factors of oxygen pressure reaction and thiourea leaching,such as oxygen pressure,temperature,reaction time and additives on gold leaching were examined.At the optimal technological parameters,the leaching rate of gold reached 94%. |
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| Keywords: | low grade gold ore oxygen pressure thiourea gold leaching |
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