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    Electrolysis cell, useful for production of organic and inorganic products, has electrochemically active counter electrode area that is smaller than that of working electrode
    11.
    发明专利
    Electrolysis cell, useful for production of organic and inorganic products, has electrochemically active counter electrode area that is smaller than that of working electrode 未知

    公开(公告)号：DE10063195A1

    公开(公告)日：2002-06-20

    申请号：DE10063195

    申请日：2000-12-19

    Applicant: BASF AG

    Inventor： MERK CLAUDIA ,  BRUDERMUELLER MARTIN ,  PUETTER HERMANN

    IPC: C07C245/02 ,  C25B3/23 ,  C25B9/17 ,  C25B13/02 ,  C25B11/00 ,  C25B3/02

    Abstract: Electrolysis cell comprises two monopolar electrodes and at least one intermediate bipolar electrode. The cell is undivided and the surface of the counter electrode comprises electrochemically active and inactive parts, such that the electrochemically active area of the counter electrode is a number of times smaller than the area of the working electrode. An electrolysis cell comprises two monopolar electrodes and at least one intermediate bipolar electrode. One monopolar electrode and the similarly charged portions of the bipolar electrodes together form the working electrode and the other monopolar electrode and the similarly charged portions of the bipolar electrodes together form the counterelectrode. The space between the counter and working electrodes is undivided. The surface of the counter electrode comprises electrochemically active and inactive parts. The sum of the electrochemically active parts of the counter electrode surface is a number of times smaller than the electrochemically active parts of the surface of the working electrode. An Independent claim is included for a process for the production of organic and inorganic compounds by reaction of the corresponding starting materials in the electrolysis cell.

    13.
    发明专利
    未知

    公开(公告)号：DE59604922D1

    公开(公告)日：2000-05-11

    申请号：DE59604922

    申请日：1996-11-11

    Applicant: BASF AG

    Inventor： KRATZ DETLEF ,  STAMMER ACHIM ,  WITZEL TOM ,  BRUDERMUELLER MARTIN

    IPC: C07C27/02 ,  C07C29/09 ,  C07C29/128 ,  C07C29/38 ,  C07C31/22 ,  C07C35/08 ,  C07C67/02 ,  C07C67/08 ,  C07C67/44 ,  C07C69/06

    Abstract: PCT No. PCT/EP96/04922 Sec. 371 Date Oct. 5, 1998 Sec. 102(e) Date Oct. 5, 1998 PCT Filed Nov. 11, 1996 PCT Pub. No. WO97/17313 PCT Pub. Date May 15, 1997A process for the preparation of polyalcohols comprises the stages: (a) Reaction of an alkanal or ketone with formaldehyde in aqueous solution in the presence of a tertiary amine, to form a formates containing polyalcohol product mixture, (b) removal of water, excess tertiary amine, excess formaldehyde (c) heating of remaining mixture from (b) with removal of further formaldehyde and tertiary amine with formation of the formates of the polyalcohol, (d) transfer of tertiary amine removed from stage (b) and/or from stage (c), to synthesis stage (a) and/or to the subsequent transesterification stage (e), (e) transesterification of the resulting formates of the polyalcohol from stage (c) with an alcohol of the formula ROH in the presence of a transesterification catalyst to give polyalcohols and formates of the formula where R is a hydrocarbon radical, preferably alkyl of 1-6, particularly preferably 1-2, carbon atoms, and (f) isolation of the polyalcohols.

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