METHOD FOR CAPROLACTAM PREPARATION
    173.
    发明专利

    公开(公告)号:BG102038A

    公开(公告)日:1998-08-31

    申请号:BG10203897

    申请日:1997-11-12

    Applicant: BASF AG

    Abstract: The method occurs by reaction between 6-aminocapronitrile andwater in the presence of a catalyst, making use of an initialmixture of 6-aminocapronitrile and tetrahydroazepine derivativewith the formulaThe reaction occurs in liquid phase in the presence ofheterogeneous catalysts. The invention also relates to a methodfor the preparation of tetrahydroazepine derivative with theabove-mentioned formula and to its use for the preparation ofcaprolactam and polycaprolactam.8 claims

    PROCESS FOR PREPARING ALIPHATIC ALPHA,OMEGA-AMINONITRILES

    公开(公告)号:HUT77021A

    公开(公告)日:1998-03-02

    申请号:HU9702137

    申请日:1995-12-16

    Applicant: BASF AG

    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.

    176.
    发明专利
    未知

    公开(公告)号:TR199701387T1

    公开(公告)日:1998-02-21

    申请号:TR9701387

    申请日:1996-05-07

    Applicant: BASF AG

    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.

    Process for producing amines and amino nitriles

    公开(公告)号:AU4378297A

    公开(公告)日:1998-02-20

    申请号:AU4378297

    申请日:1997-07-29

    Applicant: BASF AG

    Abstract: A process for preparing an NH2-containing compound by hydrogenating a compound containing at least one unsaturated carbon-nitrogen bond with hydrogen in the presence of a catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent which process includes the following steps: a) using a catalyst comprising a cobalt- and/or iron-containing catalyst, and b) after the conversion based on the compound to be hydrogenated and/or the selectivity based on the desired product has or have dropped below a defined value or the amount of an unwanted by-product has risen beyond a defined value, interrupting the hydrogenation by stopping the feed of the compound to be hydrogenated and of the solvent, if used, c) treating the catalyst at from 150 DEG to 400 DEG C. with hydrogen using a hydrogen pressure within the range from 0.1 to 30 MPa and a treatment time within the range from 2 to 48 h, and d) subsequently continuing the hydrogenation of the compound containing at least one unsaturated carbon-nitrogen bond.

    178.
    发明专利
    未知

    公开(公告)号:ID17973A

    公开(公告)日:1998-02-12

    申请号:ID972677

    申请日:1997-07-31

    Applicant: BASF AG

    Abstract: A process for preparing an NH2-containing compound by hydrogenating a compound containing at least one unsaturated carbon-nitrogen bond with hydrogen in the presence of a catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent which process includes the following steps: a) using a catalyst comprising a cobalt- and/or iron-containing catalyst, and b) after the conversion based on the compound to be hydrogenated and/or the selectivity based on the desired product has or have dropped below a defined value or the amount of an unwanted by-product has risen beyond a defined value, interrupting the hydrogenation by stopping the feed of the compound to be hydrogenated and of the solvent, if used, c) treating the catalyst at from 150 DEG to 400 DEG C. with hydrogen using a hydrogen pressure within the range from 0.1 to 30 MPa and a treatment time within the range from 2 to 48 h, and d) subsequently continuing the hydrogenation of the compound containing at least one unsaturated carbon-nitrogen bond.

    MANUFACTURING PROCESS FOR 6-AMINOCAPRONITRILE

    公开(公告)号:CA2259941A1

    公开(公告)日:1998-02-12

    申请号:CA2259941

    申请日:1997-07-23

    Applicant: BASF AG

    Abstract: Manufacture of 6-aminocapronitrile or 6-aminocapronitrile/hexamethylene diamine mixtures, involving a) the reaction of at least one pentennitrile, selected from the group consisting of 2,3 and 4-pentennitrile with carbon monoxide and hydrogen in the presence of catalysts, which contain at least one element of the eighth subgroup as active components, obtaining a hydrogenation formylating discharge (I), b) the optional separation of carbon monoxide, hydrogen and the catalyst from the hydrogenation formylating discharge (I), obtaining a hydrogenation formylating discharge (II), c) the separation of 5formyl valeronitrile from the hydrogenation formylating discharge (I) or (II), d) the reaction of separated 5-formyl valeronitrile with ammonia and hydrogen in the presence of hydrogenating catalysts, selected from the group consisting of rhenium, copper and its compounds as well as metals and metallic compounds of the eighth group, obtaining a hydrogenation discharge, and e) obtaining 6aminocapronitrile and if necessary hexamethylene diamine.

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