收稿日期: 2014-06-15
修回日期: 2014-07-11
网络出版日期: 2014-12-24
基金资助
国家科技支撑计划项目“高砷高碳微细粒金矿选冶关键技术研究”(编号:2012BAB10B08)资助
Research on Acid Hot-pressure Preoxidation-Cyanidate Process for Refractory Gold Ore
Received date: 2014-06-15
Revised date: 2014-07-11
Online published: 2014-12-24
许晓阳 , 蔡创开 , 丁文涛 . 某难处理金矿热压预氧化—氰化工艺研究[J]. 黄金科学技术, 2014 , 22(4) : 135 -138 . DOI: 10.11872/j.issn.1005-2518.2014.04.135
The samples used is a typical refractory gold ore,which containing 14.80×10-6 Au and 0.47% organic carbon,and over 95% gold is of sulfide-inclusion type,and traditional cyanidation leaching rate of gold is only 21.89%.With acid hot-pressure oxidation pretreatment,the influence of pulp density,time,temperature,oxygen partial pressure,rotational speed on cyanidation extraction rate of Au was researched.The results showed that sulfur oxidation rate was more than 98% and the leaching rate of gold was more than 97%.
Key words: refractory gold ore; acid hot-pressure; cyanidate leaching gold
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