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    74.
    发明专利
    未知

    公开(公告)号：DE59705690D1

    公开(公告)日：2002-01-17

    申请号：DE59705690

    申请日：1997-09-01

    Applicant: BASF AG

    Inventor： EBEL KLAUS ,  FISCHER ROLF ,  FLICK KLEMENS ,  MERGER MARTIN ,  VOIT GUIDO

    IPC: B01J23/78 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

    Abstract: A process for preparing aliphatic alpha,omega-amino nitrites by partial hydrogenation of aliphatic alpha,omega-dinitriles in the presence of a catalyst, wherein the catalyst used for the partial hydrogenation comprises(a) iron or a compound based on iron or mixtures thereof and(b) from 0.01 to 5% by weight, based on (a), of a promoter based on 2,3,4 or 5 elements selected from the group consisting of aluminum, silicon, zirconium, titanium and vanadium and(c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or alkaline earth metal.

    77.
    发明专利
    未知

    公开(公告)号：BR9913191A

    公开(公告)日：2001-05-15

    申请号：BR9913191

    申请日：1999-08-17

    Applicant: BASF AG

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

    IPC: C07B61/00 ,  C07C209/48 ,  C07C209/86 ,  C07C211/12

    Abstract: A process for catalytic hydrogenation of adiponitrile to hexamethylenediamine at elevated temperature and elevated pressure in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent comprisesa) hydrogenating adiponitrile at from 70 to 220° C. and from 100 to 400 bar in the presence of catalysts based on elemental iron as catalytically active component and ammonia as solvent to obtain a mixture comprising adiponitrile,6-aminocapronitrile, hexamethylenediamine and high boilers until the sum total of the 6-aminocapronitrile concentration and the adiponitrile concentration is within the range from 1 to 50% by weight, based on the ammonia-free hydrogenation mixture,b) removing ammonia from the hydrogenation effluent,c) removing hexamethylenediamine from the remaining mixture,d) separating 6-aminocapronitrile and adiponitrile from high boilers individually or together, ande) returning 6-aminocapronitrile, adiponitrile or mixtures thereof into step a).

    79.
    发明专利
    未知

    公开(公告)号：ID24261A

    公开(公告)日：2000-07-13

    申请号：ID20000484

    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: B01J23/745 ,  C07B61/00 ,  C07C253/30 ,  B01J23/78 ,  C07C255/24 ,  C07C255/26 ,  B01J237/45

    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%.

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