内蒙古某多金属尾矿综合回收锡石新工艺研究  

Research on New Comprehensive Recovery Technology of Cassiterite from the Tailings of a Polymetallic Ore in Inner Mongolia

作　　者：凌石生[1] 王中明[1] 刘方[1] 苏建芳[1] 赵杰[1] 敖迎春[1] 

机构地区：[1]北京矿冶研究总院矿物加工科学与技术国家重点实验室,北京102628

出　　处：《有色金属（选矿部分）》2017年第4期36-39,共4页Nonferrous Metals（Mineral Processing Section）

摘　　要：内蒙古某多金属矿采用磁选铁—浮选锌—重选锡工艺流程回收其中的铁、锌和锡,其中锡的重选回收率仅30%,其尾矿含锡0.54%,将近50%的锡损失在尾矿中。为了回收该尾矿中的锡资源,进行了系统的试验研究,最后推荐脱泥—硫化矿浮选—锡浮选—浮选锡粗精矿重选联合工艺流程,其闭路试验指标为锡精矿含锡35.33%、回收率50.33%。The flowsheet of magnetic seperation - flotation - gravity process was applied to recover iron, zinc, and tin from a polymetallic ore in Inner Mongolia. But the recovery of tin was only 30%, nearly 50% tin was lost in the tailings containing Sn 0. 54%. In order to make good use of the tailings resource, systematic study was carried out. Finally, the flowsheet of combined desliming-sulfide flotation-cassiterite flotation- rough concentrate gravity separation was adopted. The tin concentrate of 35.33% Sn with recovery of 50. 33% was obtained.

关 键 词：多金属矿尾矿 锡石 BK412 浮选-重选联合流程 

分 类 号：TD926.42[矿业工程—选矿] TD952