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| 某难处理硫化金精矿加压氧化一氰化浸金试验研究 | |
| 引用本文： | 李奇伟,陈奕然,陈明军,葛云松. 某难处理硫化金精矿加压氧化一氰化浸金试验研究[J]. 黄金, 2013, 34(2): 55-58 |
| 作者姓名： | 李奇伟 陈奕然 陈明军 葛云松 |
| 作者单位： | 云南黄金矿业集团股份有限公司研发中心 |
| 摘 要： | 对云南某难处理硫化金精矿进行加压氧化一氰化浸金试验研究，考察了加压氧化各因素对氰化浸金的影响。加压氧化最优条件为：固液比1：4，木质素磺酸钠5g／t，硫酸初始质量浓度10g/L，温度190℃，压力2．0MPa，反应时间4h，搅拌转速450r／min。金精矿经加压氧化一氰化浸出获得了97．55％的较高金浸出率。 |
| 关 键 词： | 难处理金精矿 加压氧化 氰化浸金 |
Experimental investigation on ssure oxidation-cyanide leaching process for refractory gold sulfide concentrates |
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| Li Qiwei,Chen Yiran,Chen Mingjun,Ge Yunsong. Experimental investigation on ssure oxidation-cyanide leaching process for refractory gold sulfide concentrates[J]. Gold, 2013, 34(2): 55-58 | |
| Authors: | Li Qiwei Chen Yiran Chen Mingjun Ge Yunsong |
| Affiliation: | (R&D Department,Yunnan Gold & Mineral Group Company Limited) |
| Abstract: | The pre-processing technique for a refactory gold concentrate from Yunnan Province by acid pressure preoxidation-cyanide leaching process was experimentally investigated. Effects of various factors on pressure preoxida- tion and gold extraction by cyanide leaching have been discussed. The optimal conditions for pressure preoxidation are like these： ratio of solid to liquid is 1：4, content of sodium lignin sulfonates 5 g/t,initial acidity 10 g/L,processing temperature 190 ℃ , pressure 2.0 MPa, processing time 4 h and stirring speed 450 rpm. The results showed that with the pressure preoxidation-cyanide leaching process, the leaching rate of gold reaches 97.55 %, a relatively high level. |
| Keywords: | refractory gold ores pressure preoxidation cyanide leaching of gold |
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