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    42.
    发明专利
    未知

    公开(公告)号：BR9912284A

    公开(公告)日：2001-04-17

    申请号：BR9912284

    申请日：1999-07-02

    Applicant: BASF AG

    Inventor： LUYKEN HERMANN ,  OHLBACH FRANK ,  ANSMANN ANDREAS ,  BASSLER PETER ,  FISCHER ROLF ,  MELDER JOHANN-PETER ,  MERGER MARTIN ,  REHFINGER ALWIN ,  VOIT GUIDO ,  ACHHAMMER G NTHER

    IPC: C07B61/00 ,  C07C209/48 ,  C07C209/84 ,  C07C209/86 ,  C07C211/12 ,  C07C253/30 ,  C07C253/34 ,  C07C255/24

    Abstract: The invention relates to a method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine from adipodinitrile, comprising the following steps: a) hydrogenating adipodinitrile in the presence of a catalyst containing an element of the VIII subgroup thereby obtaining a mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers; b) distillative separation of hexamethylenediamine from the mixture containing 6-aminocapronitrile, hexamethylenediamine, adipodinitrile and high boilers or c1) distillative separating 6-aminocapronitrile and subsequently d1) distillative separation of adipodinitrile or c2) simultaneous distillative separation of 6-aminocapronitrile and adipodinitrile into separate fractions. The invention is characterized in that temperatures in the bottoms of the column in steps d1) or c2) are under 185 DEG C. The adipodinitrile thus obtained contains less impurities than for instance 1-amino-2-cyanocyclopentenes.

    46.
    发明专利
    未知

    公开(公告)号：NO308598B1

    公开(公告)日：2000-10-02

    申请号：NO975270

    申请日：1997-11-17

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FISCHER ROLF

    IPC: C07D201/08 ,  C07D223/12 ,  C08G69/16

    Abstract: A process for preparing caprolactam by reacting 6-aminocapronitrile with water in the presence of catalysts comprises using a starting mixture of 6-aminocapronitrile and the tetrahydroazepine derivative of the formulaand conducting the reaction in liquid phase in the presence of a heterogeneous catalyst. Also describes a process for preparing said tetrahydroazepine derivative I and its use for preparing caprolactam and polycaprolactam.

    47.
    发明专利
    未知

    公开(公告)号：BR9812365A

    公开(公告)日：2000-09-19

    申请号：BR9812365

    申请日：1998-09-08

    Applicant: BASF AG

    Inventor： VOIT GUIDO ,  BOHNSACK ANDREAS ,  FISCHER ROLF ,  BASSLER PETER ,  LUYKEN HERMANN ,  MERGER MARTIN ,  FLICK KLEMENS

    IPC: B01J23/78 ,  B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24 ,  C07C255/26

    Abstract: The invention relates to a method for producing aliphatic alpha-omega amino nitriles in the presence of a catalyst composed of (a) iron or an iron based compound or a mixture thereof (b) 0.01 to 5 wt. %, in relation to (a), a promoter based on 2, 3, 4, or 5 elements selected from the group comprising aluminum, silicon, zirconium, titanium, and vanadium, and (C) to 0.5 wt. % in relation to (a) a compound based on an alkaline metal or alkaline-earth metal. The inventive method is characterized in that the aliphatic alpha-omega dinitrile contains 1.0 ppm or more phosphorus. Catalysts are obtainable through the reductive and optional successive passivation of magnetite, whereby the catalysts have a BET surface of 3 to 10 m2/g, a total pore volume of 0.05 to 0.2 ml/g, an average pore diameter of 0.03 to 0.1 mm and a pore volume portion in the range of 0.01 to 0.1 mm of 50 to 70%.

    49.
    发明专利
    未知

    公开(公告)号：BR9809008A

    公开(公告)日：2000-08-08

    申请号：BR9809008

    申请日：1998-04-30

    Applicant: BASF AG

    Inventor： FUCHS EBERHARD ,  FISCHER ROLF

    IPC: C07D201/08

    Abstract: The disclosure is a process for preparing cyclic lactams of the formula I:whereR1 is hydrogen, alkyl, cycloalkyl or aryl, andA is C3-C12-alkylene unsubstituted or substituted by 1, 2, 3, 4, 5 or 6 substituents selected independently of one another from the group consisting of alkyl, cycloalkyl and aryl,by conversion of an omega-aminocarbonitrile of the formula II:where R1 and A are each as defined above, in the presence of at least one catalyst, which comprises converting said nitrile II into an oligomer mixture, and treating with superheated steam.

    50.
    发明专利
    未知

    公开(公告)号：ES2145941T3

    公开(公告)日：2000-07-16

    申请号：ES95941718

    申请日：1995-12-16

    Applicant: BASF AG

    Inventor： MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FLICK KLEMENS ,  EBEL KLAUS ,  WITZEL TOM ,  FISCHER ROLF

    IPC: B01J23/76 ,  B01J23/889 ,  B01J23/89 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24

    Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal. with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

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