| 磨矿细度和二浸二洗对氰化浸出率影响的试验研究 |
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| 引用本文： | 拜鹏程,何烨,陈芳芳,李科科.磨矿细度和二浸二洗对氰化浸出率影响的试验研究[J].黄金科学技术,2012,20(5):71-73. |
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| 作者姓名： | 拜鹏程 何烨 陈芳芳 李科科 |
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| 作者单位： | 1.湖南中南黄金冶炼有限公司，湖南 平江 414507；
2.中国科学院过程工程研究所，绿色过程与工程重点实验室，湿法冶金清洁生产技术国家工程实验室，北京 100190 |
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| 基金项目： | 国家环境保护部重大专项项目“水体污染控制与治理技术评估体系研究”（编号：2009ZX07529-005）资助. |
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| 摘 要： | 以某黄金冶炼企业的酸洗渣为原料，针对磨矿细度和二浸二洗对该酸洗渣氰化浸出率的影响进行了试验研究，以确定该酸洗渣的最佳氰化浸出流程及浸出条件。本次研究共进行了5组平行试验，结果表明，磨矿细度达到-325目且＞90%时，浸出效果最好，一浸一洗即可达良好的浸出效果，金浸出率可达72%以上，二浸二洗对浸出率的提高无明显效果。试验结果发现，在浸出过程中，采取磨矿细度-325目且＞90%，一浸一洗的浸出流程即可达到最佳效果。
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| 关 键 词： | 磨矿细度 二浸二洗 金浸出率 |
| 收稿时间： | 2012-04-25 |
| 修稿时间： | 2012-07-26 |
Experimental Study on Cyanide Leaching Efficiency Influenced by Fineness of Grinding and Secondary Grinding and Leaching |
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| BAI Pengcheng
,
HE Ye
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CHEN Fangfang
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LI Keke.Experimental Study on Cyanide Leaching Efficiency Influenced by Fineness of Grinding and Secondary Grinding and Leaching[J].Gold Science and Technololgy,2012,20(5):71-73. |
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| Authors: | BAI Pengcheng HE Ye CHEN Fangfang LI Keke |
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| Affiliation: | 1.Hunan Central South Gold Smelting Limited Company，Pingjiang 414507，Hunan，China；;
2.Key Laboratory Green Process and Engineering，National Engineering Laboratory for Hydrometallurgical Cleaner ProductionTechnology，Institute of Process and Engineering，Chinese Academy of Sciences，Beijing， 100190，China |
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| Abstract: | Using a kind of acid slag from a gold smelting industry as raw material,cyanide leaching efficiency influenced by fineness of grinding and secondary grinding and leaching was investigated in order to get the optimum cyanide leaching process and leaching conditions.Five parallel trials were conducted.The results showed that the best leaching efficiency would be obtained under grinding fineness of -0.0450 mm above 90%.Good leaching efficiency could be over 72% under primary grinding and leaching,and it would not be obviously improved under secondary grinding and leaching.In summary,optimum leaching effect could be obtained under grinding fineness of -0.0450 mm above 90% and primary grinding and leaching in the process of leaching. |
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| Keywords: | Grinding fineness Secondary grinding and leaching Gold leaching efficiency |
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