公开(公告)号：BR9908249A

公开(公告)日：2000-10-31

申请号：BR9908249

申请日：1999-02-22

Applicant: BASF AG

Inventor： MOHRSCHLADT RALF ,  HILDEBRANDT VOLKER ,  PIPPER GUNTER ,  FUCHS EBERHARD

IPC: C08G69/18 ,  C08G69/20

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.

公开(公告)号：NO308598B1

公开(公告)日：2000-10-02

申请号：NO975270

申请日：1997-11-17

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FISCHER ROLF

IPC: C07D201/08 ,  C07D223/12 ,  C08G69/16

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.

公开(公告)号：BR9811433A

公开(公告)日：2000-08-22

申请号：BR9811433

申请日：1998-08-21

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  FLICK KLEMENS

IPC: B01J21/06 ,  B01J37/06 ,  C07D201/08

公开(公告)号：BR9811613A

公开(公告)日：2000-08-08

申请号：BR9811613

申请日：1998-08-24

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  FLICK KLEMENS

IPC: B01J21/06 ,  B01J37/06 ,  C07D201/08

Abstract: Shaped materials useful as catalyst for preparing cyclic lactams by reacting aminocarbonitriles with water in the liquid phase in a fixed bed reactor and which have no soluble constituents under the reaction conditions, comprising pyrogenic titanium dioxide as essential constituent, these compositions being obtainable by shaping the pyrogenic titanium dioxide into shaped articles and, before or after the shaping, treating the pyrogenic titanium dioxide with from 0.1 to 30% by weight, based on the pyrogenic titanium dioxide, of an acid in which pyrogenic titanium dioxide is sparingly soluble.

公开(公告)号：BR9809008A

公开(公告)日：2000-08-08

申请号：BR9809008

申请日：1998-04-30

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  FISCHER ROLF

IPC: C07D201/08

Abstract: The disclosure is a process for preparing cyclic lactams of the formula I:whereR1 is hydrogen, alkyl, cycloalkyl or aryl, andA is C3-C12-alkylene unsubstituted or substituted by 1, 2, 3, 4, 5 or 6 substituents selected independently of one another from the group consisting of alkyl, cycloalkyl and aryl,by conversion of an omega-aminocarbonitrile of the formula II:where R1 and A are each as defined above, in the presence of at least one catalyst, which comprises converting said nitrile II into an oligomer mixture, and treating with superheated steam.

公开(公告)号：ES2143764T3

公开(公告)日：2000-05-16

申请号：ES96919686

申请日：1996-05-07

Applicant: BASF AG

Inventor： FUCHS EBERHARD

IPC: C07B61/00 ,  C07C67/22 ,  C07C69/34 ,  C07C231/06 ,  C07D213/79 ,  C07C233/02 ,  C07D213/80 ,  C07D213/803 ,  C07D213/81 ,  C07D213/82 ,  C07D213/84

Abstract: PCT No. PCT/EP96/01890 Sec. 371 Date Nov. 10, 1997 Sec. 102(e) Date Nov. 10, 1997 PCT Filed May 7, 1996 PCT Pub. No. WO96/36592 PCT Pub. Date Nov. 21, 1996A process for preparing carboxylic acid derivatives of the formula I where X is OR2 or NH2, R1 is C1-C20-alkyl, Cl-C20-hydroxyalkyl, C3-C12-cycloalkyl, C4-C12-alkylcycloalkyl, C4-C12-cycloalkylalkyl, C5-C20-alkylcycloalkylalkyl, aryl, C7-C20-aralkyl, C7-C20-alkylaryl, a heteroaliphatic or heteroaromatic ring with 5 to 8 carbon atoms and R2 is C1-C20-alkyl, from carbonitriles of the formula IIR1-C 3BOND N(II),where R1 has the abovementioned meanings, and alcohols of the formula IIIR2-OH(III),where R2 has the abovementioned meanings, at from 50 to 300 DEG C. under from 0.1 to 350 bar in the presence of a heterogeneous catalyst, wherein the reaction is carried out in liquid phase.

公开(公告)号：NZ308486A

公开(公告)日：2000-01-28

申请号：NZ30848696

申请日：1996-05-07

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FISCHER ROLF

IPC: C07D201/08 ,  C07D223/12

Abstract: he production of caprolactam by reacting 6-amino capronitrile with water in the presence of catalysts, using an initial mixture of 6-amino capronitrile and the tetrahydroazepine derivative of formula (I) above, and reaction in the liquid phase in the presence of heterogeneous catalysts, and a process for producing tetrahydroazepine derivative (I) and its use for making caprolactam. Divisional filed as 500058

公开(公告)号：DE19825452A1

公开(公告)日：1999-12-09

申请号：DE19825452

申请日：1998-06-06

Applicant: BASF AG

Inventor： ELLER KARSTEN ,  FIEGE BERND ,  RITTINGER STEFAN ,  FUCHS EBERHARD

IPC: C07C209/48 ,  C07C211/09

Abstract: Production of N-substituted 2-methyl-1,5-pentanediamine derivatives (I) comprises reacting 2-methylglutaronitrile with a primary or secondary amine and hydrogen at 50-250 degrees C and 0.5-35 MPa in the presence of a catalyst that comprises one or more noble metals on an oxide support and has been pretreated with hydrogen at 50-300 degrees C for at least 0.5 hours. Production of 2-methyl-1,5-pentanediamine derivatives of formula (I) comprises reacting 2-methylglutaronitrile with a primary or secondary amine of formula R R NH and hydrogen at 50-250 degrees C and 0.5-35 MPa in the presence of a catalyst that comprises one or more noble metals on an oxide support and has been pretreated with hydrogen at 50-300 degrees C for at least 0.5 hours: R , R = H or 1-20C alkyl, 3-8C cycloalkyl, aryl or 7-20C aryl optionally substituted by 1-20C alkyl, 1-20C alkoxy, 6-20C aryloxy and/or OH, or together form a 3-7C alkylene chain optionally substituted by 1-20C alkyl and/or 1-20C alkoxy and optionally interrupted by one or two O atoms or NR groups, provided that R and R are not both H; R = H or 1-20C alkyl. An Independent claim is also included for 1,5-bis(dimethylamino)-2-methylpentane (Ia).

公开(公告)号：DE59506855D1

公开(公告)日：1999-10-21

申请号：DE59506855

申请日：1995-11-29

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.

公开(公告)号：CA2319745A1

公开(公告)日：1999-08-05

申请号：CA2319745

申请日：1999-02-02

Applicant: BASF AG

Inventor： HILDEBRANDT VOLKER ,  MOHRSCHLADT RALF ,  FUCHS EBERHARD

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/16 ,  C08G69/28 ,  C08K3/00 ,  C08K3/011

Abstract: The invention relates to a continuous method for producing a polyamide, comprising the following steps: (1) reaction of at least one aminonitrile with water at a temperature of between 90 and 400 ~C and a pressure of between 0.1 and 35 x 106 Pa in a tubular flow reactor containing a Bronsted acid catalyst selected from a beta zeolite, sheet silicate or titanium dioxide catalyst; (2) further reaction of the reaction mixture at a temperature of between 150 and 400 ~C and a pressure which is lower than the pressure in step 1, where the temperature and pressure are selected such that a first gaseous phase and a first liquid or first solid phase or a mixture of a first solid and first liquid phase is obtained, and the first gaseous phase is separated; and (3) addition of the first liquid and/or first solid phase to a gaseous or liquid phase containing water, at a temperature of between 150 and 370 ~C and a pressure of between 0.1 and 30 x 106 Pa, resulting in a product mixture.