铁闪锌矿的浮选行为及其表面吸附机理  

Mechanism of Cu^(2+) ion activation flotation of marmatite in absence and presence of ethyl xanthate

作　　者：张芹[1] 胡岳华[1] 顾帼华[1] 徐竞[1] 

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083

出　　处：《中国有色金属学报》2004年第4期676-680,共5页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金重点项目(50234010);高等学校博士点基金(20020533017)

摘　　要：通过浮选实验和红外光谱测定,考查了铁闪锌矿在无捕收剂或以乙黄药为捕收剂时的浮选行为。结果表明:铁闪锌矿在酸性条件下,可实现无捕收剂浮选,硫酸铜的活化效果不明显;在乙黄药体系下,铁闪锌矿只能在酸性条件下可浮,表面生成产物主要为乙黄原酸锌;但有硫酸铜存在时,铁闪锌矿可浮性得到大大改善,当硫酸铜用量达到一定程度,在整个pH值范围内铁闪锌矿均有较好的可浮性,铁闪锌矿表面生成物为CuEX。The collector and collectorless flotation of marmatite was investigated by flotation tests and FTIR. The results show that in acid solution, marmatite can be achieved collectorless flotation response. Cu^(2+) ion can not affect the collectorless flotability of marmatite. In ethyl xanthate solution, marmatite can be flotated only in acid solution. When marmatite was activated by Cu^(2+) ion, the floatability would be improved extensively in a pH range from 2 to 12. FTIR spectrocopy analysis shows that the surface adsorption product is CuEX.

关 键 词：铁闪锌矿 浮选 表面吸附 捕收剂 乙黄药 硫酸铜 

分 类 号：TD952[矿业工程—选矿] TD923