通电电化学预处理方铅矿的浮选  

FLOTATION OF GALENA PRETREATED BY ELECTROCHEMICAL METHOD

作　　者：王荣生[1] 徐晓军[2] 张文彬[2] 

机构地区：[1]北京矿冶研究总院,北京100044 [2]昆明理工大学,昆明650093

出　　处：《矿冶》2002年第2期26-28,19,共4页Mining And Metallurgy

摘　　要：考察了方铅矿在外控电位 -3 0 0 0～ 2 0 0 0mV(电流在 0～ 8.66mA)电化学处理后的浮选行为。结果表明 ,阳极处理在低电位时可以提高其可浮性 ,高电位时起明显的抑制作用 ,缩小其浮选的 pH范围 ;阴极处理能提高矿物的可浮性 ,扩大其浮选的 pH范围 ,其原因与极化作用下对药剂的作用有关。微电流电化学处理使方铅矿表现出的浮选特性 ,为方铅矿与其他的硫化矿的分离提供了条件。The electroflotation action of galena pretreated under external potential from -3000mV to 2400mV, with current from 0 mA to 8.06mA, is investigated. The results show that anode treatment can improve the flotability of galena at lower potential. It plays an obvious depression role and reduces flotation pH range of galena at higher potential. On the other hand, cathode treatment can improve the flotability of galena and widen its flotation pH range, which is related with the function of polarization on reagents. The flotation features resulted from electrochemical treatment can be used for separation of galena from other sulphide minerals.

关 键 词：方铅矿 阳极处理 阴极处理 电化学浮选 

分 类 号：TD923+.6[矿业工程—选矿]