某少硫化物微细浸染型含金矿石选矿试验研究  

Experimental study on the beneficiation of a microfine disseminated gold-bearing ore with little sulfide

作　　者：程晓霞 王衡嵩 杨海鸣 霍明春[2] 杨金艳 Cheng Xiaoxia;Wang Hengsong;Yang Haiming;Huo Mingchun;Yang Jinyan(Changchun Gold Research Institute Co.,Ltd.;China National Gold Group Co.,Ltd.)

机构地区：[1]长春黄金研究院有限公司,长春市130012 [2]中国黄金集团有限公司

出　　处：《黄金》2021年第10期72-75,78,共5页Gold

摘　　要：针对某少硫化物微细浸染型含金矿石进行了选矿工艺研究,探索了全泥氰化、超细磨炭浸、浮选工艺选别指标。结果表明:全泥氰化、超细磨炭浸工艺金浸出率很低,最高仅为4.04%,不适宜处理该矿石;采用浮选工艺,在最佳试验条件下,闭路试验获得了较好指标,金精矿金品位27.35 g/t、金回收率90.63%。研究结果可为该类型矿石工艺流程选择提供参考借鉴。Experimental study on the beneficiation of a microfine disseminated gold-bearing ore with little sulfide was carried out,and all-sliming cyanidation,ultrafine grinding CIL and flotation indexes were explored.The results show that all-sliming cyanidation and ultrafine grinding CIL processes have very low gold leaching rates,4.04%at most,so they are not suitable for treating the ore;under optimal experimental conditions,the closed-circuit test of flotation obtains good index:the gold grade of gold concentrates is 27.35 g/t,gold recovery rate is 90.63%.The study provides reference for choosing process flowsheets for the type of ores.

关 键 词：金矿石 微细浸染 浮选 氰化 炭浸 超细磨 

分 类 号：TD953[矿业工程—选矿]