22.
    发明专利
    未知

    公开(公告)号:AT269432T

    公开(公告)日:2004-07-15

    申请号:AT00106014

    申请日:2000-03-28

    Applicant: BASF AG

    Abstract: Lithium production from aqueous solution, by lithium amalgam formation and use as a moving anode in an electrolysis cell, is new. Metallic lithium is produced from an aqueous lithium salt solution by forming a lithium amalgam from the solution and using amalgam as a moving anode in an electrolysis cell containing a lithium ion conductive solid electrolyte and a molten lithium cathode. Preferred Features: The lithium amalgam anode is moved by stirring and/or pumping under atmospheric or slightly elevate pressure. The amalgam is produced by chlor-alkali electrolysis.

    27.
    发明专利
    未知

    公开(公告)号:DE4030912A1

    公开(公告)日:1992-04-02

    申请号:DE4030912

    申请日:1990-09-29

    Applicant: BASF AG

    Abstract: A process is described for the separation of metal ions from process water and waste water by the use of an electrically conducting filter aid layer polarised as a cathode, the potential of which is at least 50 mV more negative than the redox potential of the metal ions to be separated, the filter aid layer being permeated by the metal ion-containing water and being cyclically regenerated at intervals of 2 to 180 minutes by means of backwash, separation and flooding processes.

    28.
    发明专利
    未知

    公开(公告)号:DE3576436D1

    公开(公告)日:1990-04-12

    申请号:DE3576436

    申请日:1985-08-08

    Applicant: BASF AG

    Abstract: In a fuel cell which has an activated carbon-containing anode and an activated carbon-containing cathode and is preferably used for the oxidative treatment of waste waters containing oxygen or oxygen-containing compounds, the cathode has been subjected to partial anodic oxidation in a mineral acid at a potential epsilon h of from +1.3 to +10V and then doped with molybdenum(VI) and/or tungsten(VI) and/or vanadium(V) compounds, and the anode has been subjected to partial anodic oxidation in an aqueous mineral acid, cathodically reduced in an aqueous mineral acid and then impregnated with cobalt hydroxide and/or nickel hydroxide and/or copper hydroxide and/or zinc hydroxide, the anode and the cathode being separated by a porous polyelectrolyte through which the waste water flows.

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