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    METHOD FOR REGENERATING CATALYSTS
    121.
    发明专利
    METHOD FOR REGENERATING CATALYSTS 未知

    公开(公告)号：CA2422937A1

    公开(公告)日：2003-03-21

    申请号：CA2422937

    申请日：2001-09-20

    Applicant: BASF AG

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

    IPC: B01J23/86 ,  B01J23/94 ,  B01J38/52 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12

    Abstract: The invention relates to a method for regenerating a heterogeneous catalyst, which is used with hydrogen, in order to produce compounds containing NH2 groups by hydrogenating compounds that contain at least one unsaturated carb on- nitrogen bond. The inventive method is characterized in that: a) the supply of the compound to be hydrogenated is stopped, and; b) the heterogeneous cataly st or mixtures thereof is/are treated with a compound of formula (I) R1R2N-CO-R 3, whereby R1 represents hydrogen and C1-C4 alkyl, R2 and R3, independent of on e another, represent hydrogen and C1-C4 alkyl or, together, represent a C3-C6 alkylene group, under a pressure ranging from 0.1 to 30 MPa and at a temperature ranging from 100 to 300 ~C. The heterogeneous catalyst is treate d with said compound of formula (I) provided that this compound is liquid duri ng the treatment.

    125.
    发明专利
    未知

    公开(公告)号：DE10059716A1

    公开(公告)日：2002-06-06

    申请号：DE10059716

    申请日：2000-11-30

    Applicant: BASF AG

    Inventor： OHLBACH FRANK ,  BENISCH CHRISTOPH ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  FISCHER ROLF-HARTMUTH ,  MELDER JOHANN-PETER ,  BASLER PETER ,  MAIXNER STEFAN

    IPC: C07C209/84 ,  C07C211/09 ,  C07C253/34 ,  C07C255/24

    Abstract: The invention relates to a method for reducing the content of an aliphatic, monounsaturated amine (III) in a mixture (IV) containing an aminonitrile (I) or a diamine (II), or mixtures thereof and an amine (III). Said method is characterised in that a) mixture (IV) is reacted with an anionic nucleophile (V) in a quantity ranging between 0.01 and 10 mol per mol of amine (III) in mixture (IV) to obtain a mixture (VI). The invention is also characterised in that b) aminonitrile (I) or diamine (II) or mixtures thereof are removed by distillation from mixture (VI), at a temperature ranging between 50 and 170 DEG C and a pressure of between 0.5 and 100 kPa.

    Method for regenerating catalysts
    126.
    发明专利
    Method for regenerating catalysts 未知

    公开(公告)号：AU1050902A

    公开(公告)日：2002-04-02

    申请号：AU1050902

    申请日：2001-09-20

    Applicant: BASF AG

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

    IPC: B01J23/86 ,  B01J23/94 ,  B01J38/52 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12

    Abstract: A process is provided for the regeneration of a heterogeneous catalyst used for the preparation of compounds containing NH 2 groups by the hydrogenation, with hydrogen, of compounds containing at least one unsaturated carbon-nitrogen bond, wherein a) the feed of the compound to be hydrogenated is stopped and b) the heterogeneous catalyst is treated with a compound of the formula R 1 R 2 N-CO-R 3 (I), in which R 1 is hydrogen or C 1 -C 4 alkyl and R 2 , R 3 independently of one another are each hydrogen or C 1 -C 4 alkyl or together are a C 3 -C 6 alkylene group, or mixtures of such compounds, at a pressure ranging from 0.1 to 30 MPa and a temperature ranging from 100 to 300° C., with the proviso that the compound of formula (I) is in liquid form during the treatment.

    Method for the production of caprolactam
    127.
    发明专利
    Method for the production of caprolactam 未知

    公开(公告)号：AU6907201A

    公开(公告)日：2001-12-24

    申请号：AU6907201

    申请日：2001-06-13

    Applicant: BASF AG

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

    IPC: C07D233/10 ,  C07B61/00 ,  C07D201/08 ,  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).

    129.
    发明专利
    未知

    公开(公告)号：ES2151259T3

    公开(公告)日：2000-12-16

    申请号：ES97918103

    申请日：1997-04-03

    Applicant: BASF AG

    Inventor： SCHNURR WERNER ,  VOIT GUIDO ,  FLICK KLEMENS ,  FISCHER ROLF-HARTMUTH

    IPC: B01J23/78 ,  B01J23/94 ,  B01J27/187 ,  B01J27/28 ,  B01J38/10 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12 ,  C07C253/30 ,  C07C255/24

    Abstract: A process for the coproduction of 6-aminocapronitrile (ACN) and hexamethylenediamine (HMD) by treatment of adiponitrile (ADN) with hydrogen in the presence of a nickel-containing catalyst at temperatures not below room temperature and elevated hydrogen partial pressure in the presence or absence of a solvent comprises, after the conversion based on ADN and/or the selectivity based on ACN has or have dropped below a defined value (a) interrupting the treatment of ADN with hydrogen by stopping the feed of ADN and of the solvent, if used, (b) 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 (c) then continuing the hydrogenation of ADN with the treated catalyst of stage (b).

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