申请人:Imperial Chemical Industries, PLC
公开号:US04683310A1
公开(公告)日:1987-07-28
Metal values are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by pyridine derivatives containing the substituent --(COX).sub.A where X is the group --OR.sub.1 or --NR.sub.2 R.sub.3 and n is 1, 2 or 3. R.sub.1 is a hydrocarbyl group containing from 5 to 36 carbon atoms and R.sub.2 and R.sub.3 are hydrogen or a hydrocarbyl group wherein R.sub.2 and R.sub.3 together contain from 5 to 36 carbon atoms. The process is especially useful for the recovery of metals from leach solutions derived from sulphur-containing ores such as chalcopyrite.
金属价值可以从含有卤化物或假卤化物离子的金属盐水溶液中,通过含有取代基--(COX).sub.A的吡啶衍生物中提取。其中,X是--OR.sub.1或--NR.sub.2 R.sub.3基团,n为1、2或3。R.sub.1是含有5至36个碳原子的烃基团,而R.sub.2和R.sub.3是氢或烃基团,其中R.sub.2和R.sub.3一起含有5至36个碳原子。该过程特别适用于从含硫矿石(如黄铜矿)的浸出溶液中回收金属。