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    1.
    发明专利
    未知

    公开(公告)号：DE1719064A1

    公开(公告)日：1971-08-12

    申请号：DE1719064

    申请日：1968-03-15

    Applicant: BASF AG

    Inventor： HAAG ARMIN DR

    IPC: C09B26/02

    3.
    发明专利
    未知

    公开(公告)号：DE1644065A1

    公开(公告)日：1971-03-25

    申请号：DE1644065

    申请日：1967-08-16

    Applicant: BASF AG

    Inventor： HAAG ARMIN DR

    IPC: C09B29/033

    4.
    发明专利
    未知

    公开(公告)号：DE59101165D1

    公开(公告)日：1994-04-14

    申请号：DE59101165

    申请日：1991-12-19

    Applicant: BASF AG

    Inventor： HABERMANN WOLFGANG ,  HAAG ARMIN DR ,  KOCHANEK WOLFGANG DR

    IPC: C02F1/70 ,  C22B15/00

    Abstract: A process is described for separating ions of metals more electropositive than iron, in particular copper ions, from acid process waters and waste waters by reduction under an inert gas atmosphere with carbonyl iron powders, which have been previously freed from nitrides and carbides by a thermal treatment with hydrogen. This procedure produces residual contents of metal ions of

    5.
    发明专利
    未知

    公开(公告)号：DE4100741A1

    公开(公告)日：1992-07-16

    申请号：DE4100741

    申请日：1991-01-12

    Applicant: BASF AG

    Inventor： HABERMANN WOLFGANG ,  HAAG ARMIN DR ,  KOCHANEK WOLFGANG DR

    IPC: C02F1/70 ,  C22B15/00

    Abstract: A process is described for separating ions of metals more electropositive than iron, in particular copper ions, from acid process waters and waste waters by reduction under an inert gas atmosphere with carbonyl iron powders, which have been previously freed from nitrides and carbides by a thermal treatment with hydrogen. This procedure produces residual contents of metal ions of

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