METHOD FOR PRODUCING HIGHLY PURE LIBF4

    公开(公告)号:CA2339593A1

    公开(公告)日:2000-02-17

    申请号:CA2339593

    申请日:1999-07-20

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing highly pure LiBF4 by prepari ng a solution of BF3 etherate in diethyl ether, suspending LiF in this solution , converting same into solid LiBF4 and then separating the resulting solid LiBF4. The invention also relates to the use of LiBF4 obtained in this manne r for the production of lithium-ion batteries.

    22.
    发明专利
    未知

    公开(公告)号:DE19809420A1

    公开(公告)日:1999-09-09

    申请号:DE19809420

    申请日:1998-03-05

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing a highly pure lithium salt using lithium carbonate. Said method comprises the following steps: A: treating a mixture comprising lithium carbonate and water with CO2 to produce an aqueous mixture containing lithium hydrogencarbonate; B: passing the aqueous mixture containing lithium hydrogencarbonate through an ion-exchange module; C: precipitating out the lithium carbonate from the aqueous mixture containing lithium hydrogencarbonate obtained in step B after treatment with the ion-exchange module and D: reprocessing the precipitated lithium carbonate or converting the precipitated lithium carbonate into another highly pure lithium salt.

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