硫化矿物硫化钠诱导浮选的电化学研究  

ELECTROCHEMISTRY OF Na 2S-INDUCED FLOTATION OF SULFIDE MINERALS

作　　者：王淀佐[1] 邱冠周[1] 覃文庆[1] 李柏淡 

机构地区：[1]中南工业大学

出　　处：《有色金属》1997年第1期45-48,共4页Nonferrous Metals

摘　　要：本文研究了黄铜矿，黄铁矿的硫化钠诱导浮选行为。浮选实验，电化学研究表明，黄铜矿表现出较差的硫化钠诱导浮选行为，而黄铁矿则很好。硫化钠诱导浮选机理是由于ＨＳ－离子在矿物表面氧化产生疏水性的元素Ｓ０所致；硫化矿表面静电位的高低决定了ＨＳ－氧化成Ｓ０的可能性，黄铁矿表面静电位Ｅｍｓ高于ＨＳ－氧化成Ｓ０的电极电位，因而黄铁矿表现出良好的硫化钠诱导浮选特性；黄铜矿表面静电位低于这一电极电位，因而硫化钠诱导浮选性较差。The Na 2S-induced flotation behavior of chalcopyrite and pyrite has been investigated.In the light of flotation tests and electrochemical studies,pyrite exhibited good Na 2S-induced flotation,but that of chalcopyrite was depressed by Na 2S.It is the electrochemical mechanism of Na 2S-induced flotation that the electrochemical catalytic oxidation of HS -ion on the mineral surface is mainly responsible for the Na 2S-induced flotation.If the rest potential of mineral surface is higher than E HS -/S ,the oxidalion is responsible,or it is not.

关 键 词：黄铜矿 黄铁矿 硫化钠 诱导浮选 电化学 选矿 

分 类 号：TD923[矿业工程—选矿]