脆硫锑铅矿与乙基黄药相互作用电化学浮选红外光谱研究  

THE FTIR SPECTROSCOPY STUDY OF ELECTROCHEMICAL FLOTATION FOR THE ETHYL XANTHATE-JAMESONITE SYSTEM

作　　者：张芹[1] 胡岳华[2] 徐兢[2] 陈铁军[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,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）》2006年第4期4-7,共4页Nonferrous Metals（Mineral Processing Section）

基　　金：国家自然科学基金重点项目(50234010)

摘　　要：考察了乙基黄药为捕收剂时,脆硫锑铅矿的浮选行为,发现在pH2￣12的范围内,脆硫锑铅矿均可表现良好的可浮性,只有pH>12时,可浮性下降。通过用氧化剂过硫酸铵、还原剂硫代硫酸钠调节矿浆电位,考察了脆硫锑铅矿在不同pH值下,可浮性与矿浆电位的关系,得出了矿物可浮的电位-pH区间。并通过红外光谱测试的研究,探讨了乙基黄药在脆硫锑铅矿表面作用机理及生成产物,不同pH值及不同电位下与乙基黄药作用后,脆硫锑铅矿浮选回收率与红外吸收强度有一定的对应关系,在弱酸性范围,红外信号最强。乙基黄药在脆硫锑铅矿表面作用主要生成物为黄原酸铅。The flotation behavior of jamesonite was investigated with ethyl xanthate as a collector. It is shown that jamesonite has good floatability from pH 2 to pH 12, and relatively poor floatability with pH〉12. The flotation of jamesonite was also dependent, on pulp potential. The potential-pH range for jamesonite flotation was established. The FTIR spectroscopy analysis showed that the major adsorption product of ethyl xanthate on jamesonite was lead ethyl xanthate. The intensity of the FTIR signals of metal ethyl xanthate adsorption on jamesonite and the flotation recovery response of jamesonite were correlated with pulp potentials.

关 键 词：乙基黄药 脆硫锑铅矿 电化学浮选 红外光谱 

分 类 号：TD952.1[矿业工程—选矿] TD952.3