公开(公告)号：CA2260805A1

公开(公告)日：1998-01-29

申请号：CA2260805

申请日：1997-07-07

Applicant: BASF AG

Inventor： ACHHAMMER GUENTHER ,  FISCHER ROLF ,  RITZ JOSEF ,  FUCHS EBERHARD ,  VOIT GUIDO

IPC: C07C231/06 ,  C07C237/06 ,  C07C253/00 ,  C07C255/24 ,  C07D201/08 ,  C07D201/12 ,  C07D201/16 ,  C07D223/10

Abstract: The invention concerns the preparation of caprolactam by cyclizing 6aminocapronitrile in the presence of water at high temperature and optionally of a catalyst and a solvent by: a) separating from the reaction yield ("reaction yield I") of the cyclizing process caprolactam and all the components boiling higher than caprolactam ("high boilers"); b) treating the high boilers from step a) with phosphoric acid and/or polyphosphoric acid at a temperature ranging from 200 to 350 ~C, obtaining reaction yield II; and c) separating the caprolactam resulting from reaction yield II of step b) and optionally 6-aminocapronitrile from unreacted "high boilers" and the acid used.

公开(公告)号：MX9708720A

公开(公告)日：1997-12-31

申请号：MX9708720

申请日：1996-05-04

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  ZIMMERMANN HORST ,  WITZEL TOM ,  BREITSCHEIDEL BORIS ,  BECKER RAINER ,  HEUHAUSER HORST

IPC: B01J23/40 ,  C07C213/02 ,  C07C213/06

Abstract: La presente invencion se refiere a un proceso para preparar N-metil-2-(e,4-dimetoxifenil)etilamina que consiste en la hidrogenacion de 3,4-dimetoxifenil-acetonitrilo con metilamina de la formula general I. , en donde R1 es hidrogeno, bencilo o terbutilo, e hidrogeno en presencia de un catalizador con soporte que consiste en desde 0.05 a 50% por peso de cromito de cobre, cobre, plata, oro, hierro, cobalto, níquel, rutenio, rodio, paladio, osmio, iridio, platino o mezclas de éstos, en presencia o ausencia de agua a desde 20 a 200 degree C con desde 1 a 300 bar.

公开(公告)号：PL321267A1

公开(公告)日：1997-11-24

申请号：PL32126795

申请日：1995-12-22

Applicant: BASF AG

Inventor： ACHHAMMER GUENTHER ,  BASSLER PETER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  LUYKEN HERMANN ,  SCHNURR WERNER ,  WITZEL TOM

IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10

Abstract: The invention concerns the simultaneous preparation of caprolactam and hexamethylene diamine from adipodinitrile, by the following steps: (a) the adipodinitrile is partially hydrogenated, producing a mixture substantially containing 6-aminocapronitrile, hexamethylene diamine, ammonia, adipodinitrile and hexamethylene imine (= "the mixture"); (b) the mixture obtained in step (a) is distilled, producing ammonia, as the forerunnings, and a residue I, in the presence of a compound A which is inert in the distillation conditions, the ammonia not being separated totally; (c) the residue I, substantially containing "the mixture", inert compound A and ammonia, the ammonia content being less than that of the mixture used in step (b), is subjected to a second distillation, producing a mixture of the inert compound A and ammonia, as the forerunnings, and a residue II; (d) the base II, substantially containing "the mixture" and inert compound A, is subjected to distillation in a third column, producing the inert compound A, as the forerunnings, and a residue III; (e) the base III, substantially containing "the mixture" and optionally an inert compound B, is subjected to distillation in a fourth column, producing forerunnings KP1, which substantially contain hexamethylene imine, optionally inert compound B and hexamethylene diamine, and a residue IV; (f) the forerunnings KP1 are subjected in a fifth column to distillation, producing forerunnings KP2, which substantially contain hexamethylene imine and optionally inert compound B, and a residue V, which substantially contains hexamethylene diamine with a degree of purity of at least 95 %, the forerunnings KP2 being fed to the third column or optionally only partially fed to the third column, and the rest being discarded; and (g) the residue IV, substantially containing 6-aminocapronitrile and adipodinitrile, is subjected in a sixth column to distillation, producing 6-aminocapronitrile with a degree of purity of at least 95 %, as forerunnings, and adiponitrile in the residue. The resultant 6-aminocapronitrile is cyclized to form caprolactam.

公开(公告)号：NO975296D0

公开(公告)日：1997-11-18

申请号：NO975296

申请日：1997-11-18

Applicant: BASF AG

Inventor： FUCHS EBERHARD

IPC: C07B61/00 ,  C07C67/22 ,  C07C69/34 ,  C07D213/79 ,  C07C231/06 ,  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：NO975296A

公开(公告)日：1997-11-18

申请号：NO975296

申请日：1997-11-18

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 ,  C07D213/84

CPC classification number: C07D213/803 ,  C07C67/22 ,  C07C231/06 ,  C07D213/80 ,  C07D213/81 ,  C07C69/675

公开(公告)号：SK63697A3

公开(公告)日：1997-11-05

申请号：SK63697

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.

公开(公告)号：BR9508147A

公开(公告)日：1997-11-04

申请号：BR9508147

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.

公开(公告)号：MX9703955A

公开(公告)日：1997-09-30

申请号：MX9703955

申请日：1995-11-29

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  ACHHAMMER GUNTHER

IPC: C07D201/08 ,  C07D223/10

Abstract: La presente invencion se refiere al compuesto Caprolactama que se prepara por calentamiento de 6-aminocapronitrilo en presencia de un catalizador heterogéneo y agua a presion super atmosférica mediante un método en el que (a) 6-aminocapronitrilo, una mezcla que contiene esencialmente 6-aminocapronitrilo y agua y un alcohol de bajo punto de ebullicion o de elevado punto de ebullicion se calientan en presencia de un catalizador heterogéneo en un reactor A para dar una mezcla I, (b) la mezcla I luego se destila para dar una fraccion superior, caprolactama y un producto inferior, amoniaco que se elimina antes de la destilacion si está presente en la mezcla I, y luego (c) la fraccion superior se alimenta en el reactor A de la etapa (a), si se desea, la fraccion superior se mezcla con el alcohol o con agua o 6-aminocapronitrilo utilizados en la etapa (a) antes de ser alimentada en el reactor A, o (c2) la fraccion superior, si se desea, con el producto inferior de la etapa (d), se alimenta en el reactor B, la fraccion superior se alimenta, si se desea, con el alcohol o el agua o el 6-aminocapronitrilo utilizado en la etapa (a) antes de ser alimentado en el reactor B, y entonces se obtiene caprolactama de la misma manera que en la etapa (b) por destilacion, y cualquiera de lo siguiente (d1) el producto inferior de la etapa (b) se alimenta en el reactor A de la etapa (a) o, (d2) si se desea, se añade agua, y si se desea, se añade alcohol de bajo de punto de ebullicion o de elevado punto de ebullicion al producto inferior y este ultimo entonces se calienta de la misma manera que en la etapa (a) en otro reactor C para dar una mezcla reaccion, a partir de la cual se obtiene caprolactama por destilacion, o (d3) se añade agua al producto inferior, el cual entonces se calienta en un reactor D sin la adicion de un catalizador para dar una mezcla de reaccion, y se obtiene caprolactama a partir de la mezcla de reaccion por destilacion, o (d4) el producto inferior al cual se ha añadido agua y una base, se calienta en un reactor E para dar una mezcla de reaccion, a partir de la cual se obtiene caprolactama por destilacion.

公开(公告)号：BR9408100A

公开(公告)日：1997-08-05

申请号：BR9408100

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.

公开(公告)号：FI972839A0

公开(公告)日：1997-07-02

申请号：FI972839

申请日：1997-07-02

Applicant: BASF AG

Inventor： ACHHAMMER GUENTHER ,  BASSLER PETER ,  FISCHER ROLF ,  FUCHS EBERHARD ,  LUYKEN HERMANN ,  SCHNURR WERNER ,  WITZEL TOM

IPC: C07D201/02 ,  C07C209/48 ,  C07C211/12 ,  C07D201/08 ,  C07D223/10 ,  C07C

Abstract: The invention concerns the simultaneous preparation of caprolactam and hexamethylene diamine from adipodinitrile, by the following steps: (a) the adipodinitrile is partially hydrogenated, producing a mixture substantially containing 6-aminocapronitrile, hexamethylene diamine, ammonia, adipodinitrile and hexamethylene imine (= "the mixture"); (b) the mixture obtained in step (a) is distilled, producing ammonia, as the forerunnings, and a residue I, in the presence of a compound A which is inert in the distillation conditions, the ammonia not being separated totally; (c) the residue I, substantially containing "the mixture", inert compound A and ammonia, the ammonia content being less than that of the mixture used in step (b), is subjected to a second distillation, producing a mixture of the inert compound A and ammonia, as the forerunnings, and a residue II; (d) the base II, substantially containing "the mixture" and inert compound A, is subjected to distillation in a third column, producing the inert compound A, as the forerunnings, and a residue III; (e) the base III, substantially containing "the mixture" and optionally an inert compound B, is subjected to distillation in a fourth column, producing forerunnings KP1, which substantially contain hexamethylene imine, optionally inert compound B and hexamethylene diamine, and a residue IV; (f) the forerunnings KP1 are subjected in a fifth column to distillation, producing forerunnings KP2, which substantially contain hexamethylene imine and optionally inert compound B, and a residue V, which substantially contains hexamethylene diamine with a degree of purity of at least 95 %, the forerunnings KP2 being fed to the third column or optionally only partially fed to the third column, and the rest being discarded; and (g) the residue IV, substantially containing 6-aminocapronitrile and adipodinitrile, is subjected in a sixth column to distillation, producing 6-aminocapronitrile with a degree of purity of at least 95 %, as forerunnings, and adiponitrile in the residue. The resultant 6-aminocapronitrile is cyclized to form caprolactam.