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.

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

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.

公开(公告)号：AU4304796A

公开(公告)日：1996-07-19

申请号：AU4304796

申请日：1995-12-16

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FLICK KLEMENS ,  EBEL KLAUS ,  WITZEL TOM ,  FISCHER ROLF ,  HARDER WOLFGANG ,  REHFINGER ALWIN DR

IPC: B01J23/89 ,  B01J23/76 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24

Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal. with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

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.

公开(公告)号：CA2208775C

公开(公告)日：2005-07-05

申请号：CA2208775

申请日：1995-12-16

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER ,  SCHNURR WERNER ,  FLICK KLEMENS ,  EBEL KLAUS ,  REHFINGER ALWIN ,  HARDER WOLFGANG ,  FISCHER ROLF ,  WITZEL TOM

IPC: B01J23/89 ,  B01J23/76 ,  B01J23/889 ,  B01J27/18 ,  B01J37/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/24

Abstract: Aliphatic alpha,omega-aminonitriles are prepared by partially hydrogenating aliphatic alpha,omega-dinitriles at an increased temperature and pressure in the presence of a solvent and a catalyst. The catalyst contains (a) a compound based on a metal selected from the group made up of nickel, cobalt, iron, ruthenium and rhodium; (b) 0.01 to 25 % by weight in relation to (a) of a promoter based on a metal selected from the group comprising of palladium, platinum, iridiu m, osmium, copper, silver, gold, chromium, molybdenum. tungsten, manganese, rhenium, zinc, cadmium, lead, aluminium, tin, phosphoru s, arsenic, antimony, bismuth, silicium, titanium, zirconium and rare earth metals; and (c) 0 to 5 % by weight in relation to (a) of a compound based on an alkaline or alkaline-earth metal, provided that component (a) not be based on iron or iron and a metal selected from th e group comprising cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group comprising titanium, manganese, chromium and molybdenum. Moreover, when component (a) is a compound based only on ruthenium or on rhodium, ruthenium and rhodium, or nickel and rhodium, promoter (b) may be dispensed with.

公开(公告)号：AT236875T

公开(公告)日：2003-04-15

申请号：AT95924256

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：CZ291453B6

公开(公告)日：2003-03-12

申请号：CZ391698

申请日：1997-05-28

Applicant: BASF AG

Inventor： JULIUS MANFRED ,  RUST HARALD ,  KRAUSE ALFRED ,  SIEGEL HARDO ,  SIEGEL WOLFGANG ,  WITZEL TOM

IPC: C07B63/04 ,  C07D211/58 ,  C07D211/72 ,  C07D221/20 ,  C08K5/3435

Abstract: The present invention relates to a process for reducing the dimerization of piperidines of the general formula I wherein R1e through Re4 represent alkyl containing 1 to 6 carbon atoms, Re1 and Re2 and/or Re3 and Re4 together denote a CHi2 chain having 2 to 5 carbon atoms, wherein the process comprises adding to the piperidine from 0.001 to 0.2 percent by weight of a reducing agent of the general formula MXHi(4-m)Yim, wherein M is an alkali metal, NRi4, wherein R are identical or different alkyl groups containing 1 to 4 carbon atoms, or an equivalent of an alkaline earth metal or an equivalent of zinc, X represents boron or aluminum, Y denotes CN and m is 0 or 1, based on the amount of piperidine of the general formula I. The invention also relates to a mixture of piperidines of the general formula I, containing from 0.001 to 0.2 percent by weight of a reducing agent and from 1 to 1000 ppm of dimers of the piperidines of the general formula I, and to the hindered amine light stabilizers prepared therefrom.

公开(公告)号：ES2173162T3

公开(公告)日：2002-10-16

申请号：ES95900739

申请日：1994-11-15

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/08 ,  C07D223/10

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：IN188366B

公开(公告)日：2002-09-14

申请号：IN716MA1995

申请日：1995-06-13

Applicant: BASF AG

Inventor： FUCHS EBERHARD ,  WITZEL TOM

IPC: C07D201/08