公开(公告)号：DE19507398C1

公开(公告)日：1996-09-12

申请号：DE19507398

申请日：1995-03-03

Applicant: BASF AG

Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  BREITSCHEIDEL BORIS DR ,  HARDER WOLFGANG DR ,  LUYKEN HERMANN ,  PAUL AXEL DR ,  ROS KARL-HEINZ DR ,  WAHL PETER DR

IPC: B01J23/46 ,  B01J23/75 ,  B01J23/755 ,  C07B61/00 ,  C07C209/48 ,  C07C211/36 ,  C07C209/22

Abstract: Prepn. of 3-aminomethyl-3,5,5-trimethylcyclohexylamine (isophorone diamine; IPDA) from 3-cyano-3,5,5-trimethyl-cyclohexanone (isophorone nitrile; IPN) is carried out in three separate reaction zones by: (a) reacting IPN with excess liquid NH3 at 20-150 deg.C and 50-300 bar; (b) hydrogenating the reaction prod. with H2 in the presence of excess NH3 at 50-100 deg.C and 50-300 bar; and (c) hydrogenating the reaction prod. with N2 at 110-160 deg.C and 150-300 bar. Acidic metal oxide catalyst is used in stage (a); and hydrogenation catalyst, opt. with basic components or on neutral or basic supports, in stages (b) and (c).

公开(公告)号：DE19756400A1

公开(公告)日：1999-06-24

申请号：DE19756400

申请日：1997-12-18

Applicant: BASF AG

Inventor： VOIT GUIDO DR ,  WITZEL TOM DR ,  BREITSCHEIDEL BORIS DR ,  LUYKEN HERMANN ,  ROS KARL-HEINZ DR ,  WAHL PETER DR

IPC: C07C209/26 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36

Abstract: 3-Aminomethyl-3,5,5-trimethyl-cyclohexylamine (IPDA) with a cis:trans isomer ratio of at least 70/30 is obtained by catalytic imination of 3-cyano-3,5,5-trimethyl-cyclohexanone (IPN) followed by catalytic hydrogenation of the resulting imine in presence of an acid. A process for the production of IPDA with a cis:trans isomer ratio of at least 70/30 comprises: (a) imination of IPN with ammonia in presence of an imination catalyst at 20-150 degrees C and 1.5-30 Mpa, and (b) hydrogenation of the resulting imine at 80-160 degrees C and 5-30 Mpa in presence of ammonia on catalysts containing copper and/or a Group VIII metal and also in presence of an acid in amounts corresponding to an acid number of 0.1-2 based on the IPN used.

公开(公告)号：DE4414879C2

公开(公告)日：1998-10-29

申请号：DE4414879

申请日：1994-04-28

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER DR ,  RUIDER GUENTHER DR ,  WITZEL TOM DR ,  ROS KARL-HEINZ DR ,  BOETTGER GUENTER DR

IPC: C07C213/04 ,  C07C213/10 ,  C07C215/08

公开(公告)号：DE19707509A1

公开(公告)日：1998-08-27

申请号：DE19707509

申请日：1997-02-25

Applicant: BASF AG

Inventor： KNEUPER HEINZ-JOSEF DR ,  WEYER HANS-JUERGEN DR ,  NEUHAUSER HORST DR ,  MELDER JOHANN-PETER DR ,  HENNE ANDREAS DR ,  ROS KARL-HEINZ DR ,  BECKER RAINER DR

IPC: B01J27/18 ,  B01J31/02 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C253/14 ,  C07C253/34 ,  C07C255/04

Abstract: Removal of halides (I) from mixtures containing nitriles (II) containing (I) comprises (a) thermal treatment; (b) treatment with a base; and (c) separation of the base. Also claimed are methods of preparing amines.

公开(公告)号：DE19535404A1

公开(公告)日：1997-03-27

申请号：DE19535404

申请日：1995-09-23

Applicant: BASF AG

Inventor： ROS KARL-HEINZ DR ,  WAMBACH LUDWIG DR ,  WACHE HARRO DR

IPC: C07C45/86 ,  C07C49/17 ,  C07C49/175

Abstract: Method for increasing the stability of hydroxy- and alkoxy-alkyl ketones during storage comprises adding 0.0001-1 wt.% base.

公开(公告)号：DE19525507A1

公开(公告)日：1997-01-16

申请号：DE19525507

申请日：1995-07-13

Applicant: BASF AG

Inventor： BECKER RAINER DR ,  KERSTEN SIEGFRIED DR ,  STADLER KLAUS PETER DR ,  WACHE HARRO DR ,  WAMBACH LUDWIG DR ,  WEYER HANS-JUERGEN DR ,  ROS KARL-HEINZ DR

IPC: C07C209/12 ,  C07C211/63 ,  C07C209/08

公开(公告)号：DE4414879A1

公开(公告)日：1995-11-02

申请号：DE4414879

申请日：1994-04-28

Applicant: BASF AG

Inventor： MELDER JOHANN-PETER DR ,  RUIDER GUENTHER DR ,  WITZEL TOM DR ,  ROS KARL-HEINZ DR ,  BOETTGER GUENTER DR

IPC: C07C213/04 ,  C07C213/10 ,  C07C215/08