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投稿时间：2013-10-23 修订日期：2013-10-30 录用日期：2013-11-01 网络发布日期：2014-04-22
投稿时间：2013-10-23 修订日期：2013-10-30 录用日期：2013-11-01 网络发布日期：2014-04-22
中文摘要: 用[Bmim]HSO4离子液体取代硫酸进行了硫脲浸取银精矿的浸出行为研究。考察了磨矿细度、[Bmim]HSO4浓度、硫脲浓度、Fe3+浓度、液固比、浸出时间等对银浸出率的影响。结果表明，在磨矿细度-0.043 mm占80%、硫脲浓度0.18 mol/L、[Bmim]HSO4浓度0.3 mol/L、Fe3+浓度7.5 mmol/L、液固比3∶1、浸出时间18 h的最优条件下，银浸出率可达到73.96%。在[Bmim]HSO4-硫脲、H2SO4-硫脲和氰化体系中，[Bmim]HSO4-硫脲体系不但银浸出率最高，而且浸出时间最短。
中文关键词: [Bmim]HSO4 离子液体 浸出 硫脲 银精矿
Abstract:The leaching behaviors of silver concentrate in [Bmim]HSO4 ionic liquids and thiourea solution were studied. The effects of grinding fineness, [Bmim]HSO4 concentration, thiourea and Fe3 concentrations, ratio of liquid to solid, and leaching time on silver leaching rate were investigated. The results show that silver leaching rate is 73.96% under the optimum conditions including particle size of 80% -0.043 mm, thiourea concentration of 0.18 mol/L, [Bmim]HSO4 concentration of 0.3 mol/L, Fe3 concentration of 7.5 mmol/L, ratio of liquid to solid of 3∶1 and leaching time of 18 h. In comparison with cyaniding leaching and sulfuric acid thiourea leaching, the highest silver leaching rate can be achieved in [Bmim]HSO4-thiourea solution with the shortest leaching duration.
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基金项目:江西省科技支撑计划项目（2011BBG70002-1）；江西省教育厅科技计划项目（GJJ11480）
| Author Name | Affiliation | |
| Fang Xihui | Jiangxi University of Science and Technology | fangxihui@yeah.net |
| Zhong Mingqing | ||
| Yin Yanfeng | ||
| Zhang Shuai | ||
| Chen Dujuan |
引用文本：
方夕辉,钟名清,尹艳芬,张帅,陈杜娟.银精矿在[Bmim]HSO4离子液体—硫脲体系中的浸出行为[J].有色金属（冶炼部分）,2014(5):38-41.
Fang Xihui,Zhong Mingqing,Yin Yanfeng,Zhang Shuai,Chen Dujuan.Leaching Behaviors of Silver Concentrate in [Bmim]HSO4 Ionic Liquids and Thiourea Solution[J].Nonferrous Metals (Extractive Metallurgy),2014(5):38-41.
方夕辉,钟名清,尹艳芬,张帅,陈杜娟.银精矿在[Bmim]HSO4离子液体—硫脲体系中的浸出行为[J].有色金属（冶炼部分）,2014(5):38-41.
Fang Xihui,Zhong Mingqing,Yin Yanfeng,Zhang Shuai,Chen Dujuan.Leaching Behaviors of Silver Concentrate in [Bmim]HSO4 Ionic Liquids and Thiourea Solution[J].Nonferrous Metals (Extractive Metallurgy),2014(5):38-41.
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