从铁尾矿中回收钨、锡选矿试验研究  

On Tungsten and Tin Recovery from Iron Trailings

作　　者：马立成[1] 郑其[1] 车小奎[1] 严波[1] 冯海亮[1] 

机构地区：[1]北京有色金属研究总院稀有金属冶金材料研究所,北京100088

出　　处：《有色金属（选矿部分）》2016年第2期52-55,共4页Nonferrous Metals（Mineral Processing Section）

摘　　要：某铁尾矿含钨0.93%,锡0.35%,矿物组成复杂,嵌布粒度细,且含易浮脉石较多,回收困难。针对此难选矿样进行了钨、锡浮选回收试验研究。确定了最佳药剂用量为碳酸钠4.0 kg/t,水玻璃+淀粉2.5+2.5 kg/t,油酸+苯甲羟肟酸1.0+1.4 kg/t,获得了钨精矿含WO360.13%、钨回收率58.38%,锡精矿含锡21.08%、锡回收率44.87%。A iron tailings contain tungsten 0. 93% and tin 0. 35%,which fine particle size distribution,the mineral component of this ore is complex and existence of easy-floting silica mineral,so it is difficult to recover the remaining scheelite and cassiterite from the tailings. A test study on recovering tungsten and tin has been done for the tailings sample. According to the conditional test results,the optimal reagents regime was conducted（ Na_2CO34. 0 kg / t,silicate sodium 2. 5 kg / t and starch 2. 5 kg / t,oleic acid 1. 0 kg / t and benzohydroxamic acid 1. 4 kg / t）.The tungsten concentrate grading 60. 13% WO_3 with recovery of 58. 38%,and tin concentrate grading 21. 08% Sn with recovery of 44. 87% were obtained by the closed-circuit test.

关 键 词：铁尾矿 白钨矿 锡石 浮选 综合利用 

分 类 号：TD982[矿业工程—选矿] TD954