| 某硫铁矿烧渣的硫脲法浸金银研究 |
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| 引用本文： | 廖阳平,刘有才,朱忠泗.某硫铁矿烧渣的硫脲法浸金银研究[J].矿冶工程,2021,41(6):178-181. |
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| 作者姓名： | 廖阳平 刘有才 朱忠泗 |
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| 作者单位： | 1.中南大学 化学化工学院，湖南 长沙 410083;
2.江西铜业集团化工有限公司，江西 上饶 334000;
3.湖南长远锂科股份有限公司，湖南 长沙 410012 |
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| 摘 要： | 针对某硫铁矿烧渣进行了硫脲法搅拌浸金、银研究，考察了磨矿细度、硫脲浓度、pH值、液固比、搅拌时间、矿浆温度、浸出剂种类对金、银浸出率的影响。结果表明，适宜的搅拌浸出条件为: 磨矿细度-0.074 mm粒级占89%、硫脲浓度15 g/L、pH=2.5、液固比3、搅拌时间7.5 h、矿浆温度50 ℃，此条件下金、银浸出率分别达到84.8%、72.1%。
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| 关 键 词： | 硫脲 硫铁矿烧渣 浸出 金 银 |
| 收稿时间： | 2021-07-06 |
Extraction of Gold and Silver from Pyrite Cinders by Thiourea Leaching |
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| LIAO Yang-ping,LIU You-cai,ZHU Zhong-si.Extraction of Gold and Silver from Pyrite Cinders by Thiourea Leaching[J].Mining and Metallurgical Engineering,2021,41(6):178-181. |
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| Authors: | LIAO Yang-ping LIU You-cai ZHU Zhong-si |
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| Affiliation: | 1.School of Chemistry & Chemical Engineering, Central South University, Changsha 410083, Hunan, China;
2.Jiangxi Copper Group Chemical Industry Co Ltd, Shangrao 334000, Jiangxi, China;
3.Hunan Changyuan Lico Co Ltd, Changsha 410012, Hunan, China |
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| Abstract: | Thiourea leaching of gold and silver from some pyrite cinder was studied, and the influences of grinding fineness, thiourea concentration, slurry pH value, liquid-solid ratio, mixing time, slurry temperature, leaching agent types on the leaching rates of gold and silver were all investigated. Results show that under the appropriated conditions, including a grinding fineness of -0.074 mm 89%, hiourea concentration of 15 g/L, pH of 2.5, liquid-solid ratio of 3, mixing time of 7.5 h, slurry temperature of 50 ℃, the leaching rates of gold and silver can reach 84.8% and 72.1%, respectively. |
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| Keywords: | thiourea pyrite cinders leaching gold silver |
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