公开(公告)号：ZA944577B

公开(公告)日：1995-12-27

申请号：ZA944577

申请日：1994-06-27

Applicant: BASF AG

Inventor： WITZEL TOM ,  KUMMER RUDOLF ,  MERGER FRANZ ,  VOIT GUIDO ,  BRUDERMUELLER MARTIN ,  PRIESTER CLAUS-ULRICH ,  HARDER WOLFGANG

IPC: C07C253/18 ,  C07C253/30 ,  C07C255/24 ,  C07C

公开(公告)号：ZA9404577B

公开(公告)日：1995-12-27

申请号：ZA9404577

申请日：1994-06-27

Applicant: BASF AG

Inventor： WITZEL TOM ,  KUMMER RUDOLF ,  MERGER FRANZ ,  VOIT GUIDO ,  BRUDERMUELLER MARTIN ,  PRIESTER CLAUS-ULRICH ,  HARDER WOLFGANG

IPC: C07C253/18 ,  C07C253/30 ,  C07C255/24 ,  C07C

CPC classification number: C07C253/30 ,  C07C255/24

公开(公告)号：BE1006622A5

公开(公告)日：1994-11-03

申请号：BE9300920

申请日：1993-09-07

Applicant: BASF AG

Inventor： FUCHS HUGO ,  PRIESTER CLAUS-ULRICH ,  NEUBAUER GERALD

IPC: C07B63/02 ,  C07D201/16

Abstract: Procédé d'épuration du caprolactame par un traitement oxydant, caractérisé en ce que l'on traite des mélanges contenant le caprolactame à épurer et des lactames insaturés, par de l'oxygène ou un mélange de gaz contenant de l'oxygène, en milieu alcalin.

公开(公告)号：CA1274827A

公开(公告)日：1990-10-02

申请号：CA527730

申请日：1987-01-20

Applicant: BASF AG

Inventor： HUTMACHER HANS-MARTIN ,  MERGER FRANZ ,  BROECKER FRANZ J ,  FISCHER ROLF ,  VAGT UWE ,  HARDER WOLFGANG ,  PRIESTER CLAUS-ULRICH

IPC: B01J23/00 ,  B01J23/74 ,  B01J23/78 ,  B01J25/00 ,  C07B61/00 ,  C07D201/08 ,  C07D223/10

Abstract: Caprolactam is prepared by a process in which a) the 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as the solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40 to 130.degree.C, b) excess ammonia and hydrogen are separated off from the reaction mixture, c) the resulting reaction mixture is reacted with water at elevated temperatures with simultaneous removal of alkanols, and d) the reaction mixture thus obtained is heated to 150-370.degree.C and .epsilon.-caprolactam is obtained.

公开(公告)号：CA1274826A

公开(公告)日：1990-10-02

申请号：CA527726

申请日：1987-01-20

Applicant: BASF AG

Inventor： HUTMACHER HANS-MARTIN ,  MERGER FRANZ ,  BROECKER FRANZ J ,  FISCHER ROLF ,  VAGT UWE ,  HARDER WOLFGANG ,  PRIESTER CLAUS-ULRICH ,  SCHNEIDER HEINZ-WALTER ,  RICHTER WOLFGANG

IPC: B01J23/74 ,  B01J23/78 ,  B01J25/00 ,  C07B61/00 ,  C07D201/08 ,  C07D223/10

Abstract: Caprolactam is prepared by a process in which a) a 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as a solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40 to 130.degree.C, b) excess ammonia and hydrogen are separated off from the reaction mixture and c) the reaction mixture thus obtained is heated to 150 250.degree.C and .epsilon.-caprolactam is obtained.

公开(公告)号：DE3602375A1

公开(公告)日：1987-07-30

申请号：DE3602375

申请日：1986-01-28

Applicant: BASF AG

Inventor： HUTMACHER HANS-MARTIN ,  MERGER FRANZ ,  BROECKER FRANZ J ,  FISCHER ROLF ,  VAGT UWE ,  HARDER WOLFGANG ,  PRIESTER CLAUS-ULRICH

IPC: B01J23/00 ,  B01J23/74 ,  B01J23/78 ,  B01J25/00 ,  C07B61/00 ,  C07D201/08 ,  B01J8/00

Abstract: Caprolactam is prepared by a process in which (a) the 5-formylvalerate is reacted with excess ammonia and hydrogen in the presence of an alkanol as the solvent and in the presence of a hydrogenation catalyst under superatmospheric pressure in the liquid phase at from 40 DEG to 130 DEG C., (b) excess ammonia and hydrogen are separated off from the reaction mixture, (c) the resulting reaction mixture is reacted with water at elevated temperatures with simultaneous removal of alkanols, and (d) the reaction mixture thus obtained is heated to 150 DEG -370 DEG C. and epsilon -caprolactam is obtained.

公开(公告)号：NL194503C

公开(公告)日：2002-06-04

申请号：NL9301488

申请日：1993-08-30

Applicant: BASF AG

Inventor： FUCHS HUGO ,  NEUBAUER GERALD ,  PRIESTER CLAUS-ULRICH

IPC: C07B63/02 ,  C07D201/16 ,  C07D223/10

Abstract: Caprolactam is purified by oxidative treatment in which mixtures which essentially contain the caprolactam to be purified and unsaturated lactams are treated with oxygen or an oxygen-containing gas mixture in an alkaline medium.

公开(公告)号：DE3768784D1

公开(公告)日：1991-04-25

申请号：DE3768784

申请日：1987-12-09

Applicant: BASF AG

Inventor： MERGER FRANZ ,  PRIESTER CLAUS-ULRICH ,  FISCHER ROLF ,  SAUERWALD MANFRED

IPC: C07D201/08

Abstract: Caprolactam is prepared by heating a 6-aminocaproic ester at 100 DEG -320 DEG C. in the presence of a reaction medium comprising an aromatic hydrocarbon which is liquid under reaction conditions and has a boiling point from 80 DEG to 240 DEG C., and isolating caprolactam from the reaction medium.

公开(公告)号：DE3602376A1

公开(公告)日：1987-07-30

申请号：DE3602376

申请日：1986-01-28

Applicant: BASF AG

Inventor： HUTMACHER HANS-MARTIN ,  MERGER FRANZ ,  BROECKER FRANZ JOSEF ,  FISCHER ROLF ,  VAGT UWE ,  HARDER WOLFGANG ,  PRIESTER CLAUS-ULRICH ,  SCHNEIDER HEINZ-WALTER ,  RICHTER WOLFGANG

IPC: B01J23/74 ,  B01J23/78 ,  B01J25/00 ,  C07B61/00 ,  C07D201/08