Experimental Study on Activator for Desulfurization of a Coarse Tin Secondary Concentrate
某粗锡次精矿除硫活化剂试验研究

摘要

某粗锡次精矿，含锡9.84%、硫7.67%、砷2.43%、铁30.26%，针对矿石特性探索不同活化剂对该次精矿中硫的活化效果。采用控制最佳浮选除硫技术关键参数，主工艺为一粗二扫三精，扫选尾矿进入摇床重选产出合格锡精矿。通过不同活化剂试验，筛选出价格较低，同样具有活化功能的药剂，提高选矿指标且进一步降低药剂成本。

Abstract

A coarse tin secondary concentrate contains 9.84% tin, 7.67% sulfur, 2.43% arsenic and 30.26% iron. Based on the ore characteristics, the activation effect of different activators on sulfur in the secondary concentrate was explored. The key parameters of the optimal flotation desulfurization technology are controlled. The main process is one roughing, two scavenging and three refining. The scavenging tailings enter the shaking table for gravity separation to produce qualified tin concentrate. Through the tests of different activators, the reagents with lower price and the same activation function are screened out to improve the beneficiation index and further reduce the cost of reagents.