脆硫锑铅矿无捕收剂浮选的研究  

STUDY OF THE COLLECTORLESS FLOTATION OF JAMESONITE

作　　者：张芹[1] 胡岳华[2] 徐兢[2] 陈铁军[1] 

机构地区：[1]武汉科技大学化工与资源环境学院,武汉430081 [2]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属（选矿部分）》2005年第3期44-46,共3页Nonferrous Metals（Mineral Processing Section）

基　　金：国家自然科学基金重点项目(50234010)

摘　　要：考察了脆硫锑铅矿的无捕收剂浮选行为,包括其自诱导浮选行为和硫诱导浮选行为。结果表明,脆硫锑铅矿在pH<13、一定电位范围内,具有自诱导可浮性,通过药剂调控矿浆电位,确定了不同pH条件下,回收率与矿浆电位关系和浮选电位上下限与pH关系。通过矿物表面提取,发现不同pH条件下,矿物表面均可提取到一定量的S0,探讨了脆硫锑铅矿表面氧化的机理,表明中性硫可能是脆硫锑铅矿表面的主要疏水体。结果还表明,脆硫锑铅矿不具有硫诱导无捕收剂浮选现象。The collectorless flotation behavior of jamesonite was investigated in this paper. It has been shown that jamesonite exhibit good self-induced floatability at pH<13. With the variation of pH, the upper or lower limit of jamesonite flotation is different. The potential-pH range for jamesonite flotation was determined. Reaction mechanism of the surface oxidation for jamesonite was studied by extraction of neutral sulphur from mineral surfaces. The jamesonite has not sulphur-induced flotability. The elemental sulphur was identified to be primary hydrophobic entity on jamesonite.

关 键 词：脆硫锑铅矿 无捕收剂浮选 浮选行为 矿浆电位 矿物表面 电位范围 表面氧化 自诱导 可浮性 pH 上下限 回收率 中性硫 提取 

分 类 号：TD923[矿业工程—选矿] TD952.3