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    111.
    发明专利
    未知

    公开(公告)号：DE50206307D1

    公开(公告)日：2006-05-18

    申请号：DE50206307

    申请日：2002-01-08

    Applicant: BASF AG

    Inventor： GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

    IPC: C07C29/80 ,  C07D309/30 ,  B01D3/14 ,  C07C31/20 ,  C07D315/00

    Abstract: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region ( 1 ), a lower common column region ( 6 ), a feed section ( 2, 4 ) having a rectification section ( 2 ) and stripping section ( 4 ), and a take-off section ( 3, 5 ) having a stripping section ( 3 ) and rectification section ( 5 ), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section ( 2, 4 ) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section ( 3, 5 ), or in thermally coupled columns.

    4-AMINOPIPERIDINE WITH A SPATIAL OBSTACLE OF LOW DIMER CONTENT, ITS PRODUCTION AND APPLICATION THEREOF
    113.
    发明专利
    4-AMINOPIPERIDINE WITH A SPATIAL OBSTACLE OF LOW DIMER CONTENT, ITS PRODUCTION AND APPLICATION THEREOF 未知

    公开(公告)号：PL189193B1

    公开(公告)日：2005-07-29

    申请号：PL33027697

    申请日：1997-05-28

    Applicant: BASF AG

    Inventor： JULIUS MANFRED ,  RUST HARALD ,  KRAUSE ALFRED ,  SIEGEL HARDO ,  SIEGEL WOLFGANG ,  WITZEL TOM

    IPC: C07B63/04 ,  C07D211/58 ,  C07D211/72 ,  C07D221/20 ,  C08K5/3435

    Abstract: PCT No. PCT/EP97/02763 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 28, 1997 PCT Pub. No. WO97/46528 PCT Pub. Date Dec. 11, 1997The invention relates to a process for reducing the dimerization of piperidines of the formula I where R1 to R4 are C1- to C6-alkyl, R1 and R2 and/or R3 and R4 together are a CH2 chain having 2 to 5 carbon atoms, which comprises adding to the piperidine from 0.001 to 0.2% by weight of a reducing agent of the formula MXH4-mYm, where M is an alkali metal, NR4, where R are identical or different C1-C4-alkyl groups, or an equivalent of an alkaline earth metal or an equivalent of zinc, X is boron or aluminum, Y is H or CN and m is 0 or 1. The invention also relates to a mixture of piperidines of the formula I, from 0.001 to 0.2% by weight of a reducing agent and from 1 to 1000 ppm of dimers of the piperidines of the formula I, and to the preparation of hindered amine light stabilizers therefrom.

    THE PREPARATION OF 1, 6-HEXANEDIOL AND CAPROLACTONE
    114.
    发明专利
    THE PREPARATION OF 1, 6-HEXANEDIOL AND CAPROLACTONE 未知

    公开(公告)号：MY118128A

    公开(公告)日：2004-09-30

    申请号：MYPI9700759

    申请日：1997-02-27

    Applicant: BASF AG

    Inventor： BREITSCHEIDEL BORIS ,  STEIN FRANK ,  RUST HARALD ,  BAUR KARL GERHARD ,  FISCHER ROLF ,  PINKOS ROLF

    IPC: C07C29/149 ,  C07D313/04 ,  C07C27/12 ,  C07C29/80 ,  C07C29/88 ,  C07C31/20 ,  C07C31/27 ,  C07C51/31 ,  C07D315/00

    Abstract: A PROCESS FOR PREPARING 1, 6-HEXANEDIOL AND e-CAPROLACTONE FROM A CARBOXYLIC ACID MIXTURE WHICH COMPRISES ADIPIC ACID, 6-HYDROXYCAPROIC ACID AND SMALL AMOUNTS OF 1,4-CYCLOHEXANEDIOLS AND WHICH IS OBTAINED AS BYPRODUCT OF THE OXIDATION OF CYCLOHEXANE TO CYCLOHEXANONE/CYCLOHEXANOL WITH OXYGEN OR OXYGEN-CONTAINING GASES BY WATER EXTRACTION OF THE REACTION MIXTURE, BY ESTERIFICATION AND HYDROGENATION OF A PART STREAM TO GIVE HEXANEDIOL AND CYCLIZATION OF 6-HYDROXYCAPROIC ESTER TO CAPROLACTONE, WHEREIN A) THE MONO- AND DICARBOXYLIC ACIDS PRESENT IN THE AQUEOUS REACTION MIXTURE ARE REACTED WITH A LOW MOLECULAR WEIGHT ALCOHOL TO GIVE THE CORRESPONDING CARBOXYLIC ESTERS, B) THE RESULTING ESTERIFICATION MIXTURE IS SUBJECTED TO A FIRST DISTILLATION STAGE TO REMOVE EXCESS ALCOHOL, WATER AND LOW BOILERS, C) A SECOND DISTILLATION STAGE IS CARRIED OUT ON THE BOTTOM PRODUCT FOR FRACTIONATION INTO AN ESTER FRACTION WHICH IS ESSENTIALLY FREE OF 1,4-CYCLOHEXANEDIOLS AND INTO A FRACTION WHICH COMPRISES AT LEAST THE GREATER PART OF THE 1,4-CYCLOHEXANEDIOLS, D) A THIRD DISTILLATION STAGE IS CARRIED OUT TO REMOVE FROM THE ESTER FRACTION AT LEAST PARTLY A STREAM WHICH ESSENTIALLY-COMPRISES 6-HYDROXYCAPROIC ESTER, E) THE ESTER FRACTION FROM (D), FROM WHICH 6-HYDROXYCAPROIC ESTER HAS BEEN AT LEAST PARTLY REMOVED, IS CATALYTICALLY HYDROGENATED AND THE HYDROGENATION PRODUCT IS DISTILLED IN A CONVENTIONAL MANNER TO ISOLATE 1,6-HEXANEDIOL AND F) THE STREAM WHICH ESSENTIALLY COMPRISES 6-HYDROXYCAPROIC ESTER IS HEATED TO ABOVE 200°C UNDER REDUCED PRESSURE, RESULTING IN CYCLIZATION OF 6-HYDROXYCAPROIC ESTER TO CAPROLACTONE, AND THE CYCLIZATION PRODUCT IS DISTILLED TO ISOLATE PURE e-CAPROLACTONE.

    METHOD FOR THE PRODUCTION OF CYCLOHEXANOL FROM BENZOLE
    117.
    发明专利
    METHOD FOR THE PRODUCTION OF CYCLOHEXANOL FROM BENZOLE 未知

    公开(公告)号：AU2003210379A1

    公开(公告)日：2003-09-16

    申请号：AU2003210379

    申请日：2003-02-28

    Applicant: BASF AG

    Inventor： PESCHEL WERNER ,  ADRIAN TILL ,  RUST HARALD ,  BOTTCHER ARND ,  HILL THOMAS ,  MULLER ULRICH ,  PAPP RAINER

    IPC: C07C5/11 ,  C07B61/00 ,  C07C29/04 ,  C07C35/08 ,  C07C13/20

    Abstract: A process for preparing cyclohexanol from benzene by: a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst, and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises: carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end, and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.

    METHOD OF PURIFYING 4-AMINOPIPERIDINES WITH A SPATIAL OBSTACLE
    118.
    发明专利
    METHOD OF PURIFYING 4-AMINOPIPERIDINES WITH A SPATIAL OBSTACLE 未知

    公开(公告)号：PL185707B1

    公开(公告)日：2003-07-31

    申请号：PL33027897

    申请日：1997-05-30

    Applicant: BASF AG

    Inventor： JULIUS MANFRED ,  RUST HARALD ,  KRAUSE ALFRED ,  SIEGEL HARDO ,  SIEGEL WOLFGANG ,  WITZEL TOM

    IPC: C07D211/58 ,  C07D211/56 ,  C07D221/20

    Abstract: PCT No. PCT/EP97/02822 Sec. 371 Date Nov. 12, 1998 Sec. 102(e) Date Nov. 12, 1998 PCT Filed May 30, 1997 PCT Pub. No. WO97/46529 PCT Pub. Date Dec. 11, 1997A process for purifying crude piperidines of the formula I where R1 to R4 are C1-C6-alkyl, or R1 and R2 and/or R3 and R4 together are a CH2-chain of 2 to 5 carbons, which comprises, in a first step, removing high-boiling substances and, if present, water from the crude piperidines by distillation; in a second step, adding from 0.01 to 5% by weight, based on the product of the first step, as a reducing agent; and, in a third step, isolating the piperidines by distillation.

    119.
    发明专利
    未知

    公开(公告)号：BR0016759A

    公开(公告)日：2002-09-24

    申请号：BR0016759

    申请日：2000-12-21

    Applicant: BASF AG

    Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  RUST HARALD ,  SCHULZ GERHARD

    IPC: C07B61/00 ,  C07C29/80 ,  C07C31/22 ,  C07C29/141

    Abstract: A process is disclosed for the purification, by distillation, of trimethylolpropane originating from the hydrogenation of 2,2-dimethylolbutanal, said process including the following steps:(a) reaction of n-butyraldehyde with formaldehyde in the presence of catalytic amounts of a tertiary amine, and hydrogenation of the resulting mixture to give a mixture containing trimethylolpropane;(b) separation of water, methanol, trialkylamine and/or trialkylammonium formate by distillation;(c) heating of the residue obtained in (b) under reduced pressure to a temperature at which TMP is volatile and compounds boiling above TMP are cleaved, in order to separate off, by distillation, TMP and compounds more volatile than TMP;(d) distillation of the distillate obtained in (c) in order to separate off the more volatile compounds and recover pure TMP; and(e) optional distillation of the TMP obtained in (d) in order to recover TMP with a low APHA color index.A process is also disclosed in which trialkylammonium formate is distilled under mild conditions from crude mixtures of polyhydric alcohols, predominantly trimethylolpropane.

    Method and device for the distillative processing of 1.6-hexandiol, 1.5-pentandiol and caprolactone
    120.
    发明专利
    Method and device for the distillative processing of 1.6-hexandiol, 1.5-pentandiol and caprolactone 未知

    公开(公告)号：AU2002242651A1

    公开(公告)日：2002-07-24

    申请号：AU2002242651

    申请日：2002-01-08

    Applicant: BASF AG ,  GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

    Inventor： GALL MARTIN ,  KAIBEL GERD ,  KRUG THOMAS ,  RUST HARALD ,  STEIN FRANK

    IPC: C07D309/30 ,  B01D3/14 ,  C07C29/80 ,  C07C31/20 ,  C07D315/00

    Abstract: A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region ( 1 ), a lower common column region ( 6 ), a feed section ( 2, 4 ) having a rectification section ( 2 ) and stripping section ( 4 ), and a take-off section ( 3, 5 ) having a stripping section ( 3 ) and rectification section ( 5 ), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section ( 2, 4 ) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section ( 3, 5 ), or in thermally coupled columns.

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