氨氰法从铜金精矿热压酸浸渣中提金工艺研究

J4 ›› 2005, Vol. 13 ›› Issue (05): 33-36.

氨氰法从铜金精矿热压酸浸渣中提金工艺研究

林鸿汉

福建紫金矿冶研究设计院,紫金矿业集团股份有限公司,福建上杭 364200

收稿日期:2005-03-21 修回日期:2005-04-03 出版日期:2005-10-27 发布日期:2011-11-09
作者简介:林鸿汉(1971-)男,工程师,从事湿法冶金研究工作.
基金资助:
国家科技攻关计划课题(2001BA609A-17)

Recovery of gold from residues of hot-press acid leaching of Copper-bearing gold concentrate by ammoniacal cyanide process

LIN Honghan

Fujian Zijin Research Institute of Mining and Metallurgy, Fujian Zijin Mining Co., LTD., Fujian Shanghang 364200, China

Received:2005-03-21 Revised:2005-04-03 Online:2005-10-27 Published:2011-11-09

摘要/Abstract

摘要：

对氨氰法浸取含铜热压酸浸渣进行了工艺试验研究,详细地考查了各操作条件对金银浸出率的影响。在矿浆浓度40%,NaCN用量8.0 kg/t,NH4HCO3 用量75k g/t,氰化时间16 h的条件下氰化,金、银的浸出率分别为98.3%、82.7%。

关键词: 氨氰法, 提金, 铜金精矿, 热压酸浸渣

Abstract:

The experimental reseach of gold leaching of hot-press acid leaching residues by ammmoniacal cyanide process and the effects of various operation condition on gold extraction have been investigated in this paper.The extraction of Au、Ag is 98.3%、82.7% respectively under conditions that granularity of concentration of mine slurry is 20%, the NaCN and NH4HCO3 is 8kg/t and 75kg/t respectively, and ammoniacal cyanide treatment time as long as 16h.

Key words: ammoniacal cyanide process, gold extraction, Copper-bearing gold concentrates, hot-press acid leaching residues

中图分类号:

TF803.2

林鸿汉. 氨氰法从铜金精矿热压酸浸渣中提金工艺研究[J]. J4, 2005, 13(05): 33-36.

LIN Honghan. Recovery of gold from residues of hot-press acid leaching of Copper-bearing gold concentrate by ammoniacal cyanide process[J]. J4, 2005, 13(05): 33-36.

参考文献

[1] 徐海英,赵瑞琴,龚焕高. 金矿石含铜对炭浆法提金过程的影响
[J]. 黄金, 1995, (2) : 26-29.

[2] 夏光祥,涂桃枝,石伟等. 氨氰法从铜金矿石中提金研究与工业实践
[J]. 黄金, 1995, (7) : 26-29.

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