公开(公告)号：JP2002275675A

公开(公告)日：2002-09-25

申请号：JP2001386036

申请日：2001-12-19

Applicant: BASF AG

Inventor： MERK CLAUDIA DR ,  BRUDERMULLER MARTIN ,  PUETTER HERMANN DR

IPC: C07C245/02 ,  C25B3/00 ,  C25B3/02 ,  C25B9/00 ,  C25B9/06 ,  C25B9/20 ,  C25B11/02 ,  C25B13/02

Abstract: PROBLEM TO BE SOLVED: To provide an electrolytic cell enabling the preparation of compounds with a high yield, selectivity and space time yield, which has a relatively simple structure compared to divided cells. SOLUTION: The electrolytic cell comprises two single electrodes and one or more bipolar electrodes positioned between them. One of the single electrodes, together with some of the bipolar electrodes that are charged identically to the single electrode, and forms a working electrode, and the other single electrode, together with some of the bipolar electrodes charged identically, forms a counter electrode. The space between the counter electrode and the working electrode is not divided. The surface of the counter electrode comprises electrochemically active or inactive parts, and the sum of the electrochemically active parts on the surface of the counter electrode is a few times smaller than the sum of the electrochemically active parts on the surface of the working electrode.

公开(公告)号：ES2145492T3

公开(公告)日：2000-07-01

申请号：ES96938170

申请日：1996-11-11

Applicant: BASF AG

Inventor： KRATZ DETLEF ,  STAMMER ACHIM ,  WITZEL TOM ,  BRUDERMULLER 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.

公开(公告)号：ES2171539T3

公开(公告)日：2002-09-16

申请号：ES95920071

申请日：1995-05-19

Applicant: BASF AG

Inventor： BRUDERMULLER MARTIN ,  IRGANG MATTHIAS ,  SCHMIDT-RADDE MARTIN ,  MERGER FRANZ ,  WITZEL TOM ,  KRATZ DETLEF

IPC: B01J23/78 ,  B01J21/08 ,  B01J23/72 ,  B01J23/80 ,  B01J23/85 ,  B01J23/86 ,  C07B61/00 ,  C07C29/141 ,  C07C29/145 ,  C07C31/12 ,  C07C31/125 ,  C07C31/20 ,  C07C31/27

Abstract: Alcohols are prepared by the catalytic hydrogenation of the corresponding carbonyl compounds at elevated temperatures and at superatmospheric pressure in the liquid phase by a process in which the catalyst used contains copper on an SiO2-containing carrier in the presence or absence of one or more of the elements magnesium, barium, zinc and chromium.