极难处理金精矿联合工艺提金试验研究  

Experimental study on combined technology for treatment of extremely refractory gold concentrates

作　　者：杨凤[1] 高玉玺 胡春融[1] 范晓峰[1] 王宁 

机构地区：[1]长春黄金研究院 [2]辽宁凌源日兴矿业有限公司 [3]辽宁安泰有色矿业有限公司

出　　处：《黄金》2013年第4期56-59,共4页Gold

摘　　要：阐述了极难处理金精矿的特点以及提金难点。对含砷、高碳型金矿石进行了提金工艺研究,结果表明:采用生物氧化—氰化提金工艺,金回收效果并不理想,金浸出率为80.26%;而采用生物氧化—焙烧—氰化联合工艺提金,能获得较佳的金回收指标,金浸出率可提高到91.94%。characteristics of extremely refractory gold concentrates and key points for extraction were elaborated in this paper. Process study on the treatment of arsenic gold ores with high carbon content was carried out which indicated that the biooxidation-cyanidation process was not as good as expected with a gold leaching rate of 80.26 % while the biooxidation-roasting-cyanide leaching process achieved a satisfactory recovery index with gold leaching rate of 91.94 %.

关 键 词：极难处理金精矿 有机碳 石墨碳 生物氧化 焙烧 联合工艺 

分 类 号：TD953[矿业工程—选矿]