磨矿细度和二浸二洗对氰化浸出率影响的试验研究

Gold Science and Technology ›› 2012, Vol. 20 ›› Issue (5): 71-73.

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Experimental Study on Cyanide Leaching Efficiency Influenced by Fineness of Grinding and Secondary Grinding and Leaching

BAI Pengcheng¹，HE Ye¹，CHEN Fangfang²，LI Keke²

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

Received:2012-04-25 Revised:2012-07-26 Online:2012-10-29 Published:2013-04-03

Abstract

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.

Key words: Grinding fineness, Secondary grinding and leaching, Gold leaching efficiency

CLC Number:

P617.9

BAI Pengcheng，HE Ye，CHEN Fangfang，LI Keke. Experimental Study on Cyanide Leaching Efficiency Influenced by Fineness of Grinding and Secondary Grinding and Leaching[J].Gold Science and Technology, 2012, 20(5): 71-73.

References

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