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投稿时间：2012-03-29 修订日期：2012-03-31 录用日期：2012-04-01 网络发布日期：2012-08-20
投稿时间：2012-03-29 修订日期：2012-03-31 录用日期：2012-04-01 网络发布日期：2012-08-20
中文摘要: 对某毒砂金矿进行了硫氰酸盐氨性体系氧压提取金的探索试验，考察了反应温度、Cu2 浓度、浸出时间、液固比、氨水浓度、氧分压和硫氰酸铵浓度等对金浸出率的影响。结果表明，在下述优化条件下，即硫氰酸铵浓度3 mol/L，液固比5∶1，反应温度150 ℃，浸出时间6 h，搅拌速度750 r/min，氨水浓度4.64 mo/L，铜加入量1.5 g/L，金浸出率为61.7%。而经400 ℃焙烧预处理后金浸出率达到86.2%。
Abstract:The exploration test on gold extraction from arsenopyrite gold concentrate with oxidation pressure leaching process in ammonium thiocyanate-ammonia system was performed. The effects of leaching temperature，copper concentration, leaching time, ratio of liquid to solid (L/S), ammonia concentration , oxygen pressure, and the concentration of ammonium thiocyanate on gold leaching rate were studied. The results show that the gold leaching ratio is 61.7% under the optimum conditions including NH4SCN concentration of 3 mol/L, L/S=5, leaching temperature of 150 ℃, leaching time of 6 hours, stirring speed of 750 r/min, ammonia concentration of 4.64 mol/L, and copper dosage of 1.5 g/L. The gold leaching ratio can leach 86.2% after the pretreatment of roasting at 400 ℃.
文章编号： 中图分类号： 文献标志码：
基金项目:国家自然科学基金资助项目(50974138)
| 作者 | 单位 | |
| 胡燕清* | 中南大学 | hyqd2005@126.com |
| 杨声海 | 中南大学冶金科学与工程学院 | |
| 陈永明 | 中南大学冶金科学与工程学院 | |
| 刘青 | 中南大学冶金科学与工程学院 |
| Author Name | Affiliation | |
| huyanqing | Central South University | hyqd2005@126.com |
| Yang Shenghai | ||
| Chen Yongming | ||
| liuqing |
引用文本：
胡燕清,杨声海,陈永明,刘青.某毒砂金矿硫氰酸盐氨性体系加压氧化提金探索试验[J].有色金属（冶炼部分）,2012(9):34-37.
huyanqing,Yang Shenghai,Chen Yongming,liuqing.Exploration Test on Gold Extraction from Arsenopyrite Gold Concentrate with Oxidation Pressure Leaching Process in Ammonium Thiocyanate-Ammonia System[J].Nonferrous Metals (Extractive Metallurgy),2012(9):34-37.
胡燕清,杨声海,陈永明,刘青.某毒砂金矿硫氰酸盐氨性体系加压氧化提金探索试验[J].有色金属（冶炼部分）,2012(9):34-37.
huyanqing,Yang Shenghai,Chen Yongming,liuqing.Exploration Test on Gold Extraction from Arsenopyrite Gold Concentrate with Oxidation Pressure Leaching Process in Ammonium Thiocyanate-Ammonia System[J].Nonferrous Metals (Extractive Metallurgy),2012(9):34-37.
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