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:DE10037786C1

    公开(公告)日:2002-02-14

    申请号:DE10037786

    申请日:2000-08-03

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing 3,4-dihydro-2H-pyran by reacting tetrahydrofurfuryl alcohol on solid oxidic catalysts at temperatures ranging from 150 to 400 DEG C and at pressures ranging from 0.001 to 50 bar. The inventive method is characterized in that the reaction is carried out in the gas phase inside a multi-tube reactor.

    27.
    发明专利
    未知

    公开(公告)号:DE19901198A1

    公开(公告)日:2000-07-20

    申请号:DE19901198

    申请日:1999-01-14

    Applicant: BASF AG

    Abstract: 2,2'-Dimorpholinodiethyl ether is produced by reacting diethylene glycol with ammonia under pressure at elevated temperature in the presence of hydrogen. The active hydrogenation catalyst, before reduction with hydrogen, contains 20-85 wt.% alumina, zirconium dioxide, titanium dioxide and/or silica, 1-70 wt.% copper oxide (CuO), less than 20 wt.% nickel oxide with respect to CuO and 0-50 wt.% other metal oxide(s). In the production of 2,2'-dimorpholinodiethyl ether (DMDEE) by reacting diethylene glycol with ammonia under pressure at elevated temperature in the presence of hydrogen and a hydrogenation catalyst, the active catalyst, before reduction with hydrogen, contains 20-85 wt.% aluminum oxide (Al2O3), zirconium dioxide (ZrO2), titanium dioxide (TiO2) and/or silica (SiO2), 1-70 wt.% copper oxide (expressed as CuO), 0-50 wt.% magnesium, chromium, zinc, barium and/or calcium oxide (expressed as MgO, Cr2O3, ZnO, BaO and CaO) and less than 20 wt.% nickel oxide (expressed as NiO) with respect to CuO.

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