铁闪锌矿无捕收剂浮选研究  

STUDY OF THE MARMATITE COLLECTORLESS FLOTATION

作　　者：张芹[1] 胡岳华[2] 徐兢[2] 陈铁军[1] 

机构地区：[1]武汉科技大学化学与资源环境工程学院,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5期19-21,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：考察了铁闪锌矿的自诱导和硫诱导无捕收剂浮选行为,结果表明,铁闪锌矿在弱酸性矿浆中可以实现自诱导浮选,通过药剂调控矿浆电位,得出了不同pH条件下,回收率-矿浆电位关系和浮选电位上下限-pH关系。通过矿物表面提取,探讨了铁闪锌矿表面氧化的机理,中性硫可能是主要疏水体。在中性和弱碱性条件下,铁闪锌矿具有硫诱导无捕收剂浮选。The collectorless fotation behavior of marmatite was investi marmatitie exhibited good self-induced floatability at pH〈4.7.With gated in this paper. It has been shown that the variation of pH, the upper or lower limit of marmatite flotation is different. The potential-pH ranger for marmatite flotation was determined. Reaction mechanism of the surface oxidation for marmatite was studied by extraction of neutral sulphur from mineral surfaces. The marmatite has sulphur-induced flotability at neutral and weakly alkaline pulp. The elemental sulphur was identified to be primary hydrophobic entity on marmatite.

关 键 词：铁闪锌矿 无捕收剂 浮选 电化学 

分 类 号：TD952.3[矿业工程—选矿]