申请人:Imperial Chemical Industries, PLC
公开号:US04879388A1
公开(公告)日:1989-11-07
Metal values, especially copper values, are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by a 1,2,4 triazole substitued in the 1- position by (1) a hydrocarbyl (alkyl) group or (2) a group of the formula --(X).sub.n --(CO--Y).sub.m where X is an optionally substituted methylene, vinylene or phenylene linking group or a linking group of formula --CO--A-- where A is an optionally substituted aromatic ortho linking group; n is 0 or 1; Y is OR.sub.2 or R.sub.3 where R.sub.2 and R.sub.3 are hydrocarbyl groups containing from 5 to 36 carbon atoms (preferably branched alkyl groups containing from 9 to 24 carbon atoms); and m is from 1 to 3.
金属价值,尤其是铜价值,可以通过在1-位置由(1)烃基(烷基)基团或(2)具有公式--(X).sub.n--(CO--Y).sub.m的基团取代的1,2,4-三唑从含卤或伪卤离子的金属盐水溶液中提取。其中,X是可选择取代的亚甲基、乙烯基或苯基连接基团或具有公式--CO--A--的连接基团,其中A是可选择取代的芳香族邻位连接基团;n为0或1;Y为OR.sub.2或R.sub.3,其中R.sub.2和R.sub.3为含有5至36个碳原子的烃基团(优选为含有9至24个碳原子的支链烷基团);m为1至3。