公开(公告)号：DE4213099A1

公开(公告)日：1993-10-28

申请号：DE4213099

申请日：1992-04-21

Applicant: BASF AG

Inventor： OTTERBACH ANDREAS DR ,  SCHWARZ HANS VOLKMAR DR ,  MERGER FRANZ DR ,  SCHWARZ WOLFGANG DR ,  BRANDT ECKHARDT DR ,  MAGNUSSEN PETER DR ,  MATTNER OTTO

IPC: C08G18/72 ,  C07C263/00 ,  C07C263/04 ,  C07C263/20 ,  C07C265/00 ,  C07C265/04 ,  C07C265/10 ,  C07C265/14 ,  C08G71/00 ,  C08G71/04

Abstract: The invention relates to a multi-step method for the continuous preparation of organic polyisocyanates, preferably aliphatic or cycloaliphatic diisocyanates, by conversion of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes and thermal cleavage thereof, in which the prepared polyiisocyanates and unutilizable residues are separated off in specific reaction steps and the reutilizable by-products are fed back into preliminary steps.

公开(公告)号：DE3063510D1

公开(公告)日：1983-07-07

申请号：DE3063510

申请日：1980-08-28

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  KEMPE UWE DR ,  KRUG HERBERT ,  MAGNUSSEN PETER DR ,  PRAETORIUS WERNER DR ,  ROMBERG HELMUT DR

IPC: C07D233/54 ,  C07D233/58

公开(公告)号：DE59208991D1

公开(公告)日：1997-12-04

申请号：DE59208991

申请日：1992-07-17

Applicant: BASF AG

Inventor： SCHWARZ HANS VOLKMAR DR ,  OTTERBACH ANDREAS DR ,  MATTNER OTTO ,  MERGER FRANZ DR ,  SCHWARZ WOLFGANG DR ,  BRANDT ECKHARDT DR ,  MAGNUSSEN PETER DR ,  MINGES ROLAND DR

IPC: B01J6/00 ,  C07C263/04 ,  C07C265/00 ,  C07C271/06

Abstract: A reactor for thermal cleavage of monofunctional and polyfunctional carbamic acid esters to the corresponding isocyanates and the hydroxyl components in the liquid phase, in which the geometry of the reactor, characterised by the degassing surface in proportion to the volume and the arrangement of the heating surfaces, makes possible the cleavage in a two-phase mixture which contains over 50% volumetric gas content.

公开(公告)号：DE59303105D1

公开(公告)日：1996-08-08

申请号：DE59303105

申请日：1993-04-06

Applicant: BASF AG

Inventor： OTTERBACH ANDREAS DR ,  SCHWARZ HANS VOLKMAR DR ,  MERGER FRANZ DR ,  SCHWARZ WOLFGANG DR ,  BRANDT ECKHARDT DR ,  MAGNUSSEN PETER DR ,  MATTNER OTTO

IPC: C08G18/72 ,  C07C263/00 ,  C07C263/04 ,  C07C263/20 ,  C07C265/00 ,  C07C265/04 ,  C07C265/10 ,  C07C265/14 ,  C08G71/00 ,  C08G71/04

Abstract: The invention relates to a multi-step method for the continuous preparation of organic polyisocyanates, preferably aliphatic or cycloaliphatic diisocyanates, by conversion of the corresponding organic polyamines with carbonic acid derivatives and alcohols into monomeric polyurethanes and thermal cleavage thereof, in which the prepared polyiisocyanates and unutilizable residues are separated off in specific reaction steps and the reutilizable by-products are fed back into preliminary steps.

公开(公告)号：DE3510876A1

公开(公告)日：1986-10-02

申请号：DE3510876

申请日：1985-03-26

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG DR ,  LENDLE HUBERT DR ,  MAGNUSSEN PETER DR ,  LEITNER HANS DR ,  MANEGOLD JOST HENRICH DR ,  LEITENBERGER WOLFGANG DR

IPC: C07B61/00 ,  B01J27/00 ,  B01J29/04 ,  C07C67/00 ,  C07C253/00 ,  C07C253/22 ,  C07C255/04 ,  C07C121/26 ,  C07C120/08

Abstract: Aliphatic dinitriles are prepared by reacting aliphatic dicarboxylic acids with ammonia in excess at from 200 DEG to 500 DEG C. in the presence of zeolites as catalysts.

公开(公告)号：DE3164055D1

公开(公告)日：1984-07-19

申请号：DE3164055

申请日：1981-03-04

Applicant: BASF AG

Inventor： SCHWARZ HELMUT DR ,  DOCKNER TONI DR ,  KEMPE UWE DR ,  KRUG HERBERT ,  PRAETORIUS WERNER DR ,  MAGNUSSEN PETER DR ,  GALLEI EWALD DR ,  FEHR ERICH DR

IPC: B01J23/00 ,  B01J27/00 ,  B01J27/19 ,  C07B61/00 ,  C07D233/54 ,  C07D233/56 ,  C07D233/58

Abstract: Imidazoles are prepared by reacting 2-imidazolines at from 250 DEG to 500 DEG C. in the presence of molybdenum oxide and nickel oxide and/or cobalt oxide and aluminum oxide, silicon dioxide and/or silicates as catalysts. The imidazoles obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents, textile auxiliaries, catalysts for polyurethanes and epoxy resins, surfactants and drugs, for example the corresponding nitroimidazoles.

公开(公告)号：DE3160092D1

公开(公告)日：1983-04-07

申请号：DE3160092

申请日：1981-03-04

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  GALLEI EWALD DR ,  KEMPE UWE DR ,  KRUB HERBERT ,  MAGNUSSEN PETER DR ,  PRAETORIUS WERNER DR ,  SCHWARZ HELMUT DR ,  ROMBERG HELMUT DR

IPC: C07D233/54 ,  C07D233/56 ,  C07D233/58

公开(公告)号：DE3130979A1

公开(公告)日：1983-02-24

申请号：DE3130979

申请日：1981-08-05

Applicant: BASF AG

Inventor： MAGNUSSEN PETER DR ,  TRAUZETTEL WULF DR

IPC: B01J21/00 ,  B01J21/02 ,  C07C67/00 ,  C07C253/00 ,  C07C253/06 ,  C07C255/01 ,  C07C255/03 ,  C07C255/04 ,  C07C255/33 ,  C07C255/45 ,  C07C255/49 ,  C07C255/51 ,  C07C120/10 ,  C07C121/20 ,  C07C121/52

公开(公告)号：DE2964389D1

公开(公告)日：1983-01-27

申请号：DE2964389

申请日：1979-12-06

Applicant: BASF AG

Inventor： DOCKNER TONI DR DIPL CHEM ,  KEMPE UWE DR DIPL CHEM ,  KRUG HERBERT ,  MAGNUSSEN PETER DR ,  PRAETORIUS WERNER DR DIPL CHEM ,  SZYMANSKI HANS JOACHIM

IPC: C07D233/06 ,  C07D233/08 ,  C07D233/10

Abstract: A novel process for the preparation of 2-imidazolines by reacting 1,2-diamines with nitriles or carbonyl compounds in the gas phase at from 200 DEG to 450 DEG C. in the presence of an oxide or phosphate of a metal of group 3 or 4 of the periodic table and/or in the presence of silicon dioxide. The 2-imidazolines obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.

公开(公告)号：DE4132800A1

公开(公告)日：1993-04-08

申请号：DE4132800

申请日：1991-10-02

Applicant: BASF AG

Inventor： WILMS AXEL DR ,  MAGNUSSEN PETER DR ,  NEUBAUER GERALD DR ,  RITZ JOSEF DR ,  FUCHS HUGO DR ,  THOMAS ERWIN ,  GUNS LUC

IPC: C01B21/14