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    PROCESS FOR CONTINUOUSLY HYDROGENATING NITRILE INTO PRIMARY AMINE
    5.
    发明专利
    PROCESS FOR CONTINUOUSLY HYDROGENATING NITRILE INTO PRIMARY AMINE 审中-公开

    公开(公告)号：JP2002201163A

    公开(公告)日：2002-07-16

    申请号：JP2001350673

    申请日：2001-11-15

    Applicant: BASF AG

    Inventor： ANSMANN ANDREAS ,  BENISCH CHRISTOPH ,  FUNKE FRANK DR ,  OHLBACH FRANK ,  MERGER MARTIN

    IPC: C07D295/12 ,  C07B43/04 ,  C07B61/00 ,  C07C209/48 ,  C07C211/14 ,  C07C213/02 ,  C07C217/08 ,  C07C249/02 ,  C07C251/20

    Abstract: PROBLEM TO BE SOLVED: To provide a process for the continuous hydrogenation of a nitrile to a primary amine, by which the mild hydrogenation of the nitrile can simply be carried out and especially by which the formation of the primary amine in high selectivity and the avoidance of a secondary treatment such as the separation of the nitrile can be achieved. SOLUTION: In this process for the continuous hydrogenation of the nitrile to the primary amine in a liquid phase over a suspended, activated Raney catalyst based on an alloy of aluminum and at least one transition metal selected from the group consisting of iron, cobalt and nickel, and, if desired, one or more further transition metals selected from the group consisting of titanium, zirconium, chromium and manganese, the hydrogenation is carried out in the absence of ammonia and basic alkali metal compounds or alkaline earth metal compounds.

    IMPROVED METHOD FOR PRODUCING HEXAMETHYLENE DIAMINE
    9.
    发明专利
    IMPROVED METHOD FOR PRODUCING HEXAMETHYLENE DIAMINE 未知

    公开(公告)号：CA2342178C

    公开(公告)日：2008-12-02

    申请号：CA2342178

    申请日：1999-08-17

    Applicant: BASF AG

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

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

    Abstract: The invention relates to a method for the catalytic hydrogenation of adipodinitrile to hexamethylene diamine at a high temperature and at high pressure in the presence of catalysts based on elementary iron as th e catalytic component, and ammonia as a solvent. The method is characterised in that a) adipodinitrile is hydrogenated at temperatures o f 70 to 220 .degree.C and at pressures of 100 to 400 bar in the presence of catalysts based on elementary iron as the catalytic component, and ammoni a as a solvent to produce a mixture containing adipodinitrile, 6-aminocapronitrile, hexamethylene diamine and high boilers, until the sum o f the 6-aminocapronitrile and adipodinitrile concentration is 1 to 50 wt. 3% in relation to the ammonia-free hydrogenation mixture; b) ammonia is separated out of the hydrogenation discharge; c) hexamethylene diamine is separated out of the remaining mixture; d) 6- aminocapronitrile and adipodinitrile are separated from the high boilers together or separately and e) 6-aminocapronitrile, adipodinitrile or their mixtures are returned to step a).

    10.
    发明专利
    未知

    公开(公告)号：DE50112966D1

    公开(公告)日：2007-10-18

    申请号：DE50112966

    申请日：2001-06-13

    Applicant: BASF AG

    Inventor： OHLBACH FRANK ,  ANSMANN ANDREAS ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER

    IPC: C07D201/08 ,  C07B61/00 ,  C07D233/10 ,  C07D223/10

    Abstract: A process is provided for the preparation of caprolactam from a compound of formula (I):in which R is a carboxamide, carboxylic acid or carboxylic acid ester group,whereina) a compound (I) or a mixture of such compounds, in the presence of ammonia and optionally a liquid diluent (VI), is hydrogenated with hydrogen in the presence of a catalyst (II) to give a mixture (III),b) the hydrogen and the catalyst (II) are separated from the mixture (III) to give a mixture (IV), andc) the mixture (IV), optionally in the presence of a liquid diluent (VII), is converted to caprolactam in the presence of a catalyst (V).

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