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
Received date: 2014-05-15
Revised date: 2014-06-20
Online published: 2014-12-24
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
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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