老挝某含碳含砷金矿石选冶联合工艺试验研究  

Experimental study on joint metallurgical process for a carbonaceous arsenious gold ore from Laos

作　　者：梁泽来 薛臣 Liang Zelai;Xue Chen(Liaoning Jinfeng Gold Mining Industry Co.,Ltd.;Changchun Gold Research Institute Co.,Ltd.)

机构地区：[1]辽宁金凤黄金矿业有限公司,118100 [2]长春黄金研究院有限公司

出　　处：《黄金》2022年第6期70-72,76,共4页Gold

摘　　要：针对老挝某含碳含砷金矿石性质,探索了炭浆浸出、原矿焙烧—焙砂浸出、浮选—浮选精矿焙烧—焙砂浸出、浮选碳精矿焙烧脱碳—生物氧化—浸出工艺。结果表明:相比其他3种工艺流程,该矿石适宜采用浮选—浮选精矿焙烧—焙砂浸出联合工艺处理,在试验条件下,获得的浮选精矿金回收率为95.16%,焙砂金浸出率为88.60%,全流程金总回收率为84.31%。Based on the property of a carbonaceous arsenious gold ore from Laos, the paper has explored the process of CIP leaching, run-of-mill ore roasting-roasting slag leaching, flotation-flotation concentrate roasting-roasting slag leaching, flotation carbon concentrate decarbonizing roasting-bio-oxidation-leaching.The results show that compared to the other 3 processes, the flotation-flotation concentrate roasting-roasting slag leaching joint process is more suitable for the ore.Under test conditions, the gold recovery rate of flotation concentrates is 95.16 %,the gold leaching rate of roasting slag leaching is 88.60 %,the gold total recovery rate of overall flowsheet is 84.31 %.

关 键 词：金矿石 含碳含砷 浮选 焙烧 生物氧化 

分 类 号：TD953[矿业工程—选矿]