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  • CN 62-1112/TF 
  • ISSN 1005-2518 
  • 创刊于1988年
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冶炼技术与装备研发

黔西南某碳质含砷金矿提金工艺试验研究

  • 蔡创开
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  • 厦门紫金矿冶技术有限公司,福建  厦门   361101
蔡创开(1981-),男,福建漳州人,工程师,从事湿法治金工艺研究工作.caichuangkai@163.com

收稿日期: 2014-05-15

  修回日期: 2014-06-20

  网络出版日期: 2014-12-24

基金资助

国家科技支撑计划课题“高砷高碳微细粒金矿选冶关键技术研究”(编号:2012BAB10B08)资助

Research on Technology of Recovering Gold from Carbonaceous Arsenic-bearing Gold Ores in Southwestern Guizhou

  • CAI Chuangkai
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  • Xiamen Zijin Mining & Metallurgy Technology Co.,Ltd.,Xiamen   361101,Fujian,China

Received date: 2014-05-15

  Revised date: 2014-06-20

  Online published: 2014-12-24

摘要

试验样品采自黔西南某金矿,含金1.97×10-6,砷1.27%,有机碳1.62%,是典型的低品位含碳难处理金矿,直接氰化金浸出率<3%。试验对比了碳浸法、煤油掩蔽法、次氯酸盐处理法和微波处理法的提金效果。碳浸氰化金浸出率仅为17.26%,添加煤油作为掩蔽剂磨矿—氰化后金的浸出率可提高到41%~42%,次氯酸盐预处理工艺效果不佳。微波处理工艺取得较好的结果,金浸出率可以达到82%以上,但需要在矿石中配入一定量的辅助药剂。

本文引用格式

蔡创开 . 黔西南某碳质含砷金矿提金工艺试验研究[J]. 黄金科学技术, 2014 , 22(4) : 124 -128 . DOI: 10.11872/j.issn.1005-2518.2014.04.124

Abstract

The samples were collected from a gold mine in southwest of Guizhou Province,which are all of the typical of low-grade refractory gold ore containing 1.97×10-6 Au,1.27%As and 1.62% organic carbon.The leaching rate of gold by cyanidation is lower than 3%.Reseasch on CIL,kerosene masking,hypochlorite pretreatment,microwave pretreatment was carried out to study the effect of leaching gold.The leaching rate of gold by CIL is 17.26%.By adding kerosene to grinding,cyanidation leaching rate of gold can be increased to 41%~42%.And the results of hypochlorite leaching are not good.The third process,microwave pretreatment achieve better results.After microwave pretreatment,the leaching rate of gold by cyanidation can be increased to over 82%,but need to add some special agents to the ore.

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