【摘要】 对用CO₃^2-型季胺盐为萃取剂从钨矿苛性钠浸出液中直接萃取钨时杂质锡的行为进行了考察．结果表明，CO₃^2-型季胺盐可优先萃取钨，而大部分锡则留在萃余液中，使钨锡得到分离．温度对钨锡分离影响不明显，料液pH值对钨锡分离有一定影响．更多还原

【Abstract】 ：The behavior of impurity Sn in tungsten extraction with quaternary amine salt of carbonate from caustic soda leach liquor of tungsten ore has been investigated． The results indicated that quaternary amine salt of carbonate extracted tungsten and most of the tin remained in raffinate during tungsten extraction． Therefore， this process can separate tin from tungsten． The influence of temperature on the separation of tin from tungsten was not obvious， while the influence of pH value on it was apparent．更多还原