某银锰矿选矿工艺试验研究  

Experimental Study on Mineral Processing Technology of a Silver-Manganese Ore

作　　者：沈卫卫 梁治安 吴维新 SHEN Weiwei;LIANG Zhian;WU Weixin(Xinjiang Zijin Zinc Industry Co.,Ltd.,Wuqia 845450,Xinjiang,China;State Key Laboratory of Comprehensive Utilization of Low-Grade Refractry Gold Ones,Shanghang,364200,Fujian,China)

机构地区：[1]新疆紫金锌业有限公司,新疆乌恰845450 [2]低品位难处理黄金资源综合利用国家重点实验室,福建上杭364200

出　　处：《有色金属（选矿部分）》2022年第1期96-102,114,共8页Nonferrous Metals（Mineral Processing Section）

摘　　要：对某银锰矿进行了工艺矿物学研究,银的载体矿物主要分两类:一类是独立银矿物,一类是独立银矿物的宿主矿物,锰的载体矿物主要是锰的氧化物。采用“一次粗选、一次精选、二次扫选”全硫混合浮选流程,可获得含Ag6603g/t,含Pb1.94%,含Zn2.04%,银回收率为78.51%、铅回收率41.84%、锌回收率68.36%的银精矿;采用磁选工艺流程,可获得含Mn20.31%,Ag313.10g/t的磁选精矿,混合浮选—磁选联合工艺能使银、锰回收率分别达到95.34%、91.39%。在优化的浸出条件下,对浮选尾矿采用酸浸的方法回收锰,锰的浸出率能达到78.87%,铁的浸出率为47.50%。The process mineralogy of a silver manganese ore was studied.The carrier minerals of silver are mainly divided into two types:one is independent silver mineral,the other is host mineral of independent silver mineral.The carrier minerals of manganese are mainly manganese oxide.By using flowsheet of one roughing,one cleaning and two scavengings,the silver concentrate containing Ag 6603 g/t,Pb 1.94%,Zn 2.04%and the recoveries of Ag,Pb and Zn are 78.51%,41.84%and 68.36%respectively.The magnetic concentrate containing Mn 20.31%and Ag 313.10 g/t can be obtained by using the magnetic separa tion flowsheet.The com bined process of bulk flotation and magnetic separation can make the recovery of silver and manganese reach 95.34%and 91.39%respectively.Under the optimized leaching conditions,manganese was recovered from the flotation tailings by acid leaching,the leaching rate of manganese was 78.87%,and the leaching rate of iron was 47.50%.

关 键 词：银锰矿 浮选 酸浸 磁选 综合回收 

分 类 号：TD923[矿业工程—选矿] TD924.1