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公开(公告)号：NO972503D0
公开(公告)日：1997-06-02
申请号：NO972503
申请日：1997-06-02
Applicant: BASF AG
Inventor： FUCHS EBERHARD , ACHHAMMER GUENTHER
IPC: C07D201/08 , C07D223/10
Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.
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公开(公告)号：NO972489A
公开(公告)日：1997-05-30
申请号：NO972489
申请日：1997-05-30
Applicant: BASF AG
Inventor： FUCHS EBERHARD , WITZEL TOM
IPC: C07D201/12
CPC classification number: C07D201/12
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公开(公告)号：HU9603620D0
公开(公告)日：1997-02-28
申请号：HU9603620
申请日：1995-06-16
Applicant: BASF AG
Inventor： FUCHS EBERHARD , WITZEL TOM
IPC: C07D201/08
Abstract: Cyclic lactams are prepared by reacting an aminocarboxylic acid compound of the formula I H2N-(CH2)m-COR1 I where R1 is -OH, -O-C1-C12-alkyl or -NR2R3 and R2 and R3, independently of one another, are each hydrogen, C1-C12-alkyl or C5-C8-cycloalkyl and m is an integer from 3 to 12, with water by a process in which the reaction is carried out in the liquid phase using a heterogeneous catalyst.
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公开(公告)号：AU4257496A
公开(公告)日：1996-06-26
申请号：AU4257496
申请日：1995-11-29
Applicant: BASF AG
Inventor： FUCHS EBERHARD , ACHHAMMER GUNTHER
IPC: C07D201/08 , C07D223/10
Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.
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公开(公告)号：AU1065095A
公开(公告)日：1995-06-13
申请号：AU1065095
申请日：1994-11-15
Applicant: BASF AG
Inventor： FUCHS EBERHARD , WITZEL TOM
IPC: C07D223/10 , C07D201/08
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.
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Patent Agency Ranking
公开(公告)号：PL195832B1
公开(公告)日：2007-10-31
申请号：PL34268899
申请日：1999-02-22
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , HILDEBRANDT VOLKER , PIPPER GUNTER , FUCHS EBERHARD
Abstract: In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.
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公开(公告)号：SK285008B6
公开(公告)日：2006-04-06
申请号：SK11612000
申请日：1999-02-22
Applicant: BASF AG
Inventor： MOHRSCHLADT RALF , HILDEBRANDT VOLKER , PIPPER GUNTER , FUCHS EBERHARD
Abstract: Process for the preparation of polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts. Mentioned catalysts are used in a form of pellets, extrudates, fixed beds or catalyst-coated packing elements, which permits mechanical removal from the reaction mixture and are removed from the reaction mixture after completion of the polymerization.
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公开(公告)号：FI115907B
公开(公告)日：2005-08-15
申请号：FI972340
申请日：1997-06-02
Applicant: BASF AG
Inventor： FUCHS EBERHARD , ACHHAMMER GUENTHER
IPC: C07D201/08 , C07D223/10
Abstract: An improved process for the preparation of caprolactam by heating 6-aminocapronitrile in the presence of a heterogenous catalyst and water under superatmospheric pressure without rapid deactivation of the catalysts used. The process further includes the addition of a low or high boiling alcohol in the heating phase, after which the products are obtained by distillation. The process further includes a method of working up the top and bottom products of the reactors to achieve higher yields.
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公开(公告)号：MY119626A
公开(公告)日：2005-06-30
申请号：MYPI9800475
申请日：1998-02-06
Applicant: BASF AG
Inventor： FUCHS EBERHARD , OHLBACH FRANK
IPC: B01J23/44 , C07C209/52 , C07C209/70 , C07C209/84 , C07C211/12 , C07D295/02 , C07D295/023
Abstract: A PROCESS FOR HYDROGENATING A COMPOUND IN THE GROUP OF THE EMINES OR ENAMINES 1 TO AN AMINE 11 IN THE PRESENCE OF A NITRILE 111, SAID NITRILE 111 BEING ESSENTIALLY NOT HYDROGENATED COMPRISES REACTING A MIXTURE COMPRISING A COMPOUND 1 AND A NITRILE 111 WITH A GAS COMPRISING MOLECULAR HYDROGEN IN THE PRESENCE OF A CATALYST 1V.
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公开(公告)号：CA2218134C
公开(公告)日：2005-01-04
申请号：CA2218134
申请日：1996-05-07
Applicant: BASF AG
Inventor： FUCHS EBERHARD
IPC: C07D213/79 , C07B61/00 , C07C67/22 , C07C69/34 , C07C231/06 , C07C233/02 , C07D213/80 , C07D213/803 , C07D213/81 , C07D213/82 , C07D213/84 , C07C235/06 , C07D231/14 , C07D265/30 , C07D211/60 , C07C69/675 , C07D233/90
Abstract: A process is disclosed for preparing carboxylic acid derivatives having the general formula (I), in which X stands for OR2 or NH2, R1 stands for C1-C20 alkyl, C1-C20 hydroxyalkyl, C3-C12-cycloalkyl, C4-C12 alkyl-cycloalkyl, C4-C12-cycloalkyl- alkyl, C5-C20 alkyl-cycloalkyl-alkyl, aryl, C7-C20 aralkyl, C7-C20 alkylaryl, an heteroaliphatic or heteroaromatic ring with 5 to 8 carb on atoms and R2 stands for C1-C20 alkyl, from carboxylic acid nitriles having the general formula (II) R1-C.ident.N, in which R1 has the above-mentioned meanings, and from alcohols having the general formula (III) R2-OH, in which R2 has the above-mentioned meanings. The reaction is carried out in the liquid phase at temperatures from 50 to 300 .degree. C and pressures from 0.1 to 350 bars in the presence of a n heterogeneous catalyst.
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