钙法提钒尾渣的浮选脱硫试验
Environmental Protection of Chemical Industry(2021)
Abstract
根据钙法提钒尾渣的矿物特性,采用浮选法分离其中的石膏以实现脱硫,分别考察了矿浆pH、矿浆液固比、捕收剂添加量及浮选中水循环次数等因素对浮选指标的影响,并进行了理论分析,确定了钙法提钒尾渣浮选脱硫的优选工艺参数.试验结果表明,在矿浆pH为7、矿浆液固比为5:1、捕收剂添加量为0.6~0.8 kg/t的条件下,可获得w(S)低于0.3%、w(Fe)约为34%的富铁料,S脱除率可达95%,Fe回收率约为90%.
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