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    32.
    发明专利
    未知

    公开(公告)号：ES2207226T3

    公开(公告)日：2004-05-16

    申请号：ES99924920

    申请日：1999-05-10

    Applicant: BASF AG

    Inventor： RIECHERS HARTMUT ,  SIMON JOACHIM ,  HOHN ARTHUR ,  KRAMER ANDREAS ,  FUNKE FRANK ,  SIEGEL WOLFGANG

    IPC: B01J23/755 ,  C07B55/00 ,  C07B57/00 ,  C07B61/00 ,  C07C209/68 ,  C07C209/88 ,  C07C211/03 ,  C07C213/02 ,  C07C213/08 ,  C07C217/08

    Abstract: A process for the preparation of racemic amines of the formula I where R1 and R2 are different and R1, R2, R3 are alkyl, cycloalkyl, arylalkyl, aryl, heteroaryl and heterocyclic radicals and R3 can also be hydrogen, where the radicals can bear substituents selected from the group consisting of alkyl, cycloalkyl, alkoxy, aryloxy, amino, alkylamino and dialkylamino, which comprises simultaneously reacting in situ the corresponding optically active amine I and the secondary alcohol of the formula II and/or the unsymmetrical ketone of the formula III and the amine of the formula R3NH2 in the presence of hydrogen and a hydrogenation catalyst or dehydrogenation catalyst at elevated temperature.

    METHOD FOR PRODUCING IPDA WITH A HIGH CIS/TRANS ISOMER RATIO BY DISTILLATION
    34.
    发明专利
    METHOD FOR PRODUCING IPDA WITH A HIGH CIS/TRANS ISOMER RATIO BY DISTILLATION 未知

    公开(公告)号：AU2003258591A1

    公开(公告)日：2004-04-30

    申请号：AU2003258591

    申请日：2003-08-08

    Applicant: BASF AG

    Inventor： HENKES ERHARD ,  LITTMANN GERD ,  JULIUS MANFRED ,  FUNKE FRANK ,  HILL THOMAS ,  WATZDORF JOBST RUDIGER VON ,  MATTMANN WOLFGANG ,  HARDER WOLFGANG

    IPC: C07C209/86 ,  B01D3/14 ,  C07C209/84 ,  C07C211/36 ,  C07C209/00

    Abstract: Recovery of isophoronediamine (IPDA) comprises preparation of IPDA having a cis/trans isomer ratio of less than 73/27 and separation into at least 5 fractions by distillation including an IPDA fraction having a cis/trans ratio of greater than 73/27 and a fraction having a cis/trans ratio of less than 66/34. A process for the recovery of 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophoronediamine, IPDA) comprises; (a) preparation of IPDA having a cis/trans isomer ratio of less than 73/27; (b) introduction of IPDA to the middle region of a distillation column having inserts and distillation of IPDA at 5-300 degreesC and 10-2000 mbar; (c) optionally further purification of the IPDA from (b) by distillation in at least one further column whereby the IPDA from step (b) and (c) are separated into at least 5 fractions comprising an organic fraction (1a) containing impurities having a lower b. pt. than trans-IPDA, an aqueous fraction (1b) containing impurities having a lower b. pt. than trans-IPDA, a fraction (2) containing impurities having a higher b. pt. than cis-IPDA, an IPDA fraction (3) having a cis/trans ratio of greater than 73/27 and an IPDA fraction (4) having a cis/trans ratio of less than 66/34.

    METHOD FOR PRODUCING ETHYLDIMETHYLAMINE AND TRIETHYLAMINE
    38.
    发明专利
    METHOD FOR PRODUCING ETHYLDIMETHYLAMINE AND TRIETHYLAMINE 未知

    公开(公告)号：AU2003218681A1

    公开(公告)日：2003-09-16

    申请号：AU2003218681

    申请日：2003-03-03

    Applicant: BASF AG

    Inventor： FUNKE FRANK ,  MULLER GUNTER ,  GAUS GUNTER ,  BENISCH CHRISTOPH ,  BOHLING RALF ,  STEINBRENNER ULRICH

    IPC: C07B61/00 ,  C07C209/60 ,  C07C211/05 ,  C07C211/08

    Abstract: The present invention describes a process for the preparation of ethyldimethylamine and triethylamine with the following steps: (i) reaction of a mixture of diethylamine and dimethylamine with ethylene in the presence of a catalyst from the group of alkali metal dimethylamides, alkali metal diethylamides and alkali metal hydrides (ii) removal of the catalyst (iii) distillation separation of the resulting mixture in triethylamine and ethyldimethylamine and optionally diethylamine and dimethylamine (iv) optional return of the catalyst and of the starting amines to the reaction. The process according to the invention permits the coproduction of ethyldimethylamine and diethylamine in a simple process.

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