Process for extracting cobalt, copper or zinc values using a 1-alkyl
substituted benzimidazole
    63.
    发明授权
    Process for extracting cobalt, copper or zinc values using a 1-alkyl substituted benzimidazole 失效
    使用1-烷基取代的苯并咪唑提取钴,铜或锌的方法

    公开(公告)号:US4039612A

    公开(公告)日:1977-08-02

    申请号:US691296

    申请日:1976-06-01

    摘要: Optionally substituted benzimidazoles containing an alkyl or cycloalkyl group in position 1 and containing at least 5 alkyl or cycloalkyl carbon atoms extract metals from aqueous solutions of their salts into water-immiscible organic solvents in presence of halide ion. Benzimidazoles having a branched-chain alkyl group of at least 7 carbon atoms in position 1, and especially mixtures of such compounds, are most effective. The benzimidazoles are particularly useful for extracting cobalt selectively from mixtures of cobalt and nickel salts. The metals can be recovered from the organic solvent by extraction into water free from halide ion.

    摘要翻译: 在卤素离子存在下,任选取代的含有位置1的烷基或环烷基并且含有至少5个烷基或环烷基碳原子的苯并咪唑将其盐的水溶液中的金属提取到与水不混溶的有机溶剂中。 在位置1具有至少7个碳原子的支链烷基,特别是这些化合物的混合物的苯并咪唑是最有效的。 苯并咪唑特别可用于从钴和镍盐的混合物中提取钴。 金属可通过萃取到不含卤离子的水中从有机溶剂中回收。