Solvent extraction recovery process for indium
    2.
    发明授权
    Solvent extraction recovery process for indium 失效
    铟溶剂萃取回收工艺

    公开(公告)号:US4292284A

    公开(公告)日:1981-09-29

    申请号:US153271

    申请日:1980-06-27

    IPC分类号: C01G15/00 C22B3/38

    摘要: Indium is recovered effectively from an aqueous leached solution containing indium ions, together with other ions such as ferric ions, zinc ions, etc. if any, by adjusting the pH of the aqueous solution to 0.25-4.5, extracting the indium ions from the aqueous solution with an organic solvent solution formed by diluting an extraction reagent containing a monoalkylphosphoric acid and/or a dialkylphosphoric acid and a trialkylphosphoric acid in 1:2-5 by volume ratio with a phase-stabilizing water-immiscible organic solvent and then back-extracting the indium ions in the organic solvent solution with an aqueous sulfuric acid solution.

    摘要翻译: 通过将水溶液的pH调节至0.25-4.5,从含有铟离子的水性浸出溶液以及其它离子如铁离子,锌离子等中有效地回收铟,从水溶液中提取铟离子 溶液与通过用相稳定的水不混溶的有机溶剂稀释含有1:2-5体积比的单烷基磷酸和/或二烷基磷酸和三烷基磷酸的提取试剂形成的有机溶剂溶液,然后反萃取 有机溶剂溶液中的铟离子与硫酸水溶液混合。