31.
    发明专利
    未知

    公开(公告)号:ES2129791T3

    公开(公告)日:1999-06-16

    申请号:ES95901381

    申请日:1994-11-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    32.
    发明专利
    未知

    公开(公告)号:DE59408049D1

    公开(公告)日:1999-05-06

    申请号:DE59408049

    申请日:1994-11-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    33.
    发明专利
    未知

    公开(公告)号:AT178318T

    公开(公告)日:1999-04-15

    申请号:AT95901381

    申请日:1994-11-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    36.
    发明专利
    未知

    公开(公告)号:NO304594B1

    公开(公告)日:1999-01-18

    申请号:NO962021

    申请日:1996-05-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    The preparation of caprolactam
    37.
    发明专利

    公开(公告)号:SG55170A1

    公开(公告)日:1998-12-21

    申请号:SG1996008752

    申请日:1994-11-15

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/03782 Sec. 371 Date May 16, 1996 Sec. 102(e) Date May 16, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14665 PCT Pub. Date Jun. 1, 1995Cyclic lactams are prepared by reacting amino carbonitriles with water in liquid phase in a fixed bed reactor in the presence of heterogeneous catalysts which have no soluble constituents under the reaction conditions.

    METHOD OF PREPARING CYCLIC LACTAMS
    38.
    发明专利

    公开(公告)号:RU2120437C1

    公开(公告)日:1998-10-20

    申请号:RU96113079

    申请日:1994-11-15

    Applicant: BASF AG

    Abstract: FIELD: chemical industry. SUBSTANCE: cyclic lactams are prepared by hydrolysis of aliphatic aminocarboxylic acid nitriles in liquid phase in reactor with fixed heterogeneous catalyst bed which contains no components soluble under process working conditions. The claimed method uses aminocarboxylic acid nitrile solution having concentration of 1-50 wt % in water or in admixture of water with organic solvent. Caprolactam is prepared from nitrile -6-aminocarboxylic acid. EFFECT: separation of catalyst from liquid reaction products is made easier, catalyst consumption is decreased and yield of final product is increased. 5 cl, 27 ex, 4 tbld

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