公开(公告)号：DE3466522D1

公开(公告)日：1987-11-05

申请号：DE3466522

申请日：1984-11-26

Applicant: BASF AG

Inventor： GROSSKINSKY OTTO-ALFRED DR ,  FROMMER ELMAR DR ,  RITZ JOSEF DR ,  THOMAS ERWIN ,  WEISS FRANZ-JOSEF DR

IPC: C01B21/14 ,  C07C51/42 ,  C07C53/10 ,  C07C53/122

公开(公告)号：DE3560109D1

公开(公告)日：1987-05-07

申请号：DE3560109

申请日：1985-01-25

Applicant: BASF AG

Inventor： BRUNNER ERWIN DR ,  GROSSKINSKY OTTO-ALFRED DR ,  HERRMANN GUENTER DR ,  KROKOSZINSKI ROLAND DR ,  MAGNUSSEN PETER DR

IPC: C07C27/12 ,  C07C27/00 ,  C07C29/50 ,  C07C35/08 ,  C07C45/00 ,  C07C45/33 ,  C07C49/403 ,  C07C67/00 ,  C07C407/00 ,  C07C409/06 ,  C07C409/14 ,  C07C179/053 ,  C07C178/00

公开(公告)号：DE3460708D1

公开(公告)日：1986-10-16

申请号：DE3460708

申请日：1984-11-26

Applicant: BASF AG

Inventor： GROSSKINSKY OTTO-ALFRED DR ,  FROMMER ELMAR DR ,  RITZ JOSEF DR ,  THOMAS ERWIN ,  WEISS FRANZ-JOSEF DR

IPC: C01B21/14 ,  C07C53/10 ,  C07C53/122

公开(公告)号：DE3345733A1

公开(公告)日：1985-06-27

申请号：DE3345733

申请日：1983-12-17

Applicant: BASF AG

Inventor： GROSSKINSKY OTTO-ALFRED DR ,  FROMMER ELMAR DR ,  RITZ JOSEF DR ,  THOMAS ERWIN ,  WEISS FRANZ-JOSEF DR

IPC: C07D307/62 ,  C01B21/14 ,  C07C51/42 ,  C07C53/10 ,  C07C53/122

Abstract: Stabilized solutions of hydroxylamine or its salts in water or alcohols, containing the lactone of the formula I and their preparation.

公开(公告)号：DE3061061D1

公开(公告)日：1982-12-16

申请号：DE3061061

申请日：1980-05-21

Applicant: BASF AG

Inventor： FUCHS HUGO DR ,  GROSSKINSKY OTTO-ALFRED DR ,  FROMMER ELMAR DR ,  KARTTE KLAUS DR

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

Abstract: A process for purifying caprolactam, which has been obtained by a Beckmann rearrangement, by extracting crude caprolactam with solvents, distilling the extract in the presence of alkali, and isolating pure caprolactam, wherein, in a first stage, caprolactam is distilled from the alkaline distillation residue at a bottom temperature of 130 DEG -160 DEG C., and is recycled to the distillation stage, the residue thus obtained is distilled, in a second stage, at a bottom temperature of 140 DEG -180 DEG C., and the distillate is treated with strongly acidic agents in a third stage and is then recycled to the extraction stage.

公开(公告)号：DE2860251D1

公开(公告)日：1981-01-29

申请号：DE2860251

申请日：1978-06-06

Applicant: BASF AG

Inventor： HORN PETER DR ,  GROSSKINSKY OTTO-ALFRED DR ,  FUCHS HUGO DR

IPC: C07C1/20 ,  B01J23/00 ,  B01J27/00 ,  C07B61/00 ,  C07C1/00 ,  C07C1/207 ,  C07C1/213 ,  C07C1/36 ,  C07C11/00 ,  C07C11/02 ,  C07C11/10 ,  C07C13/00 ,  C07C13/12 ,  C07C13/20 ,  C07C67/00

公开(公告)号：DE2020867A1

公开(公告)日：1971-11-18

申请号：DE2020867

申请日：1970-04-29

Applicant: BASF AG

Inventor： GROSSKINSKY OTTO-ALFRED DR ,  PILCH KURT DR

IPC: C01B17/94

Abstract: Approx. 70% pure H2SO4 is produced by extracting waste nitrating acid 2 - 6 times with benzene at 10 - 50 degrees C or by subjecting to equiv. counter-current extraction in extractor with 2 - 6 theor. plates; separating benzene phase; exposing acid phase to countercurrent air stream in trickling tower at 40 - 100 degrees C; and treating benzene free acid with 0.1 - 1 wt.% (referred to acid) of 30 - 40 wt.% H2O2. Process is continuous and gives acid suitable for other chemical purposes.

公开(公告)号：DE939630C

公开(公告)日：1956-03-01

申请号：DEB0028060

申请日：1953-10-25

Applicant: BASF AG

Inventor： FRIEDERICH HERBERT DR ,  GROSSKINSKY OTTO-ALFRED DR ,  AMANN AUGUST DR MED

IPC: C07D209/86