某锡矿选矿工艺研究  

Mineral Processing of Some Tin Ore

作　　者：张丽敏[1] 刘润清[1] 孙伟[1] 

机构地区：[1]中南大学,湖南长沙410083

出　　处：《矿冶工程》2017年第5期40-43,48,共5页Mining and Metallurgical Engineering

基　　金：国家十二五科技支撑计划(2015BAB14B02);中南大学"创新驱动计划"项目(2015CX005);湖南省高等学校2011协同创新中心项目(战略金属矿产资源清洁高效利用"协同创新中心"项目)

摘　　要：对某含锡0.86%、含硫2.14%的锡石多金属硫化矿进行了选矿工艺研究。采用混合浮选脱除其中硫化矿物,然后混合浮选尾矿采用离心机预先抛尾-分级摇床-浮选工艺回收其中的锡,试验室闭路试验获得锡品位55.63%、回收率61.83%的摇床锡精矿和锡品位29.31%、回收率11.33%的浮选锡精矿,锡总回收率为73.16%。试验指标较为理想。A study on the mineral processing of some cassiterite-polymetallic sulfide containing 0. 86% Sn and 2. 14% S was presented. In the test,a bulk flotation process was firstly adopted to remove sulfide. Then,the obtained tailings was subjected to a pretreatment with centrifuge for discarding tailings,followed by a shaking table for classification and flotation process to recover tin. A laboratory closed-circuit test resulted in a tin concentrate approaching 55. 63% Sn grade at 61. 83% recovery from shaking table and a tin concentrate grading 29. 31% Sn at 11. 33% recovery from flotation,with a total recovery of tin reaching 73. 16%,showing a relatively good process result.

关 键 词：锡矿 硫化矿 重选预抛尾 摇床 浮选 

分 类 号：TD92[矿业工程—选矿]