摘要
青海某金矿氰化车间产生的氰化尾渣中,含有金、银、铅、锌等有价元素,其中金品位2.68g/t,银品位28.76g/t,铅品位1.27%左右,锌品位1.05%左右,均具有较高的回收利用价值。利用浮选工艺,在高氰高碱度介质中,在对氰化尾渣进行擦洗性磨矿,破坏金属矿物被氧化的矿物表面后,采用一次粗选、两次扫选、两次精选的浮选流程,最终获得了铅+锌品位33.45%、金品位16.26g/t、银品位332.84g/t的浮选精矿,同时氰化尾渣中的砷被抑制,精矿中的砷品位仅为0.35%,实现了资源的综合回收。
The cyanide tailings produced in a gold mine cyanide workshop in Qinghai contain valuable elements such as gold,silver,lead and zinc,of which gold grade is 2.68 g/t,silver grade is 28.76 g/t,lead grade is about 1.27%,zinc grade is about 1.05%,which has a high recycling value.Using the flotation process,in the high cyanide and high alkalinity medium,after the scrubbing of the cyanide tailings,destroying the surface of the oxidized mineral of the metal mineral,a rough selection,two sweeps,two selections are used.The flotation process finally obtained a lead-zinc grade of 33.45%,agold grade of16.26 g/t,a silver grade of 332.84 g/t of flotation concentrate,and the arsenic in the cyanide tailings was inhibited,and the grade of arsenic in the concentrate is only 0.35%,which realizes the comprehensive recovery of resources.
作者
秦贞军
王宝胜
杨荣华
王虎
林蜀勇
李瑜
程雨波
华明旭
QIN Zhenjun;WANG Baosheng;YANG Ronghua;WANG Hu;LIN Shuyong;LI Yu;CHENG Yubo;HUA Mingxu(Qinhai Kunlun Gold Co.,Ltd.,Dulan Qinghai 817000,China)
出处
《有色金属（选矿部分）》
CAS
北大核心
2019年第6期32-36,共5页
Nonferrous Metals（Mineral Processing Section）
关键词
浮选
氰渣
有价金属
综合回收
flotation
cyanide residue
valuable metal
comprehensive recovery
