公开(公告)号：DE4012781A1

公开(公告)日：1991-10-24

申请号：DE4012781

申请日：1990-04-21

Applicant: BASF AG

Inventor： KAHL THOMAS-MICHAEL DR ,  HENKELMANN JOCHEM DR ,  HUPFER LEOPOLD DR ,  FRANZISCHKA WOLFGANG DR ,  SCHWARZ WOLFGANG DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C51/60 ,  C07C51/64 ,  C07C53/42

Abstract: Carboxylic acid chlorides of formula R-CO-Cl (I) in which R = 1-30C alkyl, 2-30C alkenyl or 2-30C alkynyl, are prepd. from carboxylic acids R-COOH (II) and phosgene COCl2 (III) in the presence of a catalyst adduct of phosgene and N-N-disubstd. formamides of formula R1R2NCHO (IV), in which R1 and R2 = 1-3C alkyl or R1 and R2 may together = a 4C or 5C alkylene chain which may be interrupted by an O atom or an N atom carrying a 1-3C alkyl or CHO gp., in which the (IV) is laden with 20-70 mol.% phosgene, and the (I) is recovered by phase sepn.

公开(公告)号：DE59308557D1

公开(公告)日：1998-06-25

申请号：DE59308557

申请日：1993-03-09

Applicant: BASF AG

Inventor： KOEHLER ULRICH DR ,  KAHL THOMAS-MICHAEL DR ,  NEUHAUSER HORST DR ,  SIEGEL HARDO DR ,  KROENER MICHAEL DR

IPC: C07D233/54 ,  C07D233/58 ,  C07D521/00

公开(公告)号：ES2047964T3

公开(公告)日：1994-03-01

申请号：ES91105743

申请日：1991-04-11

Applicant: BASF AG

Inventor： KAHL THOMAS-MICHAEL DR ,  HENKELMANN JOCHEM DR ,  HUPFER LEOPOLD DR ,  FRANZISCHKA WOLFGANG DR ,  SCHWARZ WOLFGANG DR

IPC: B01J31/02 ,  C07B61/00 ,  C07C51/60 ,  C07C51/64 ,  C07C53/42

公开(公告)号：DE59001425D1

公开(公告)日：1993-06-17

申请号：DE59001425

申请日：1990-08-10

Applicant: BASF AG

Inventor： FRANZISCHKA WOLFGANG DR ,  HUPFER LEOPOLD DR ,  HENKELMANN JOCHEM DR ,  KAHL THOMAS-MICHAEL DR ,  SAUERWALD MANFRED DR

IPC: B01J31/02 ,  A01N37/02 ,  C07B61/00 ,  C07C51/58 ,  C07C51/60 ,  C07C53/50

公开(公告)号：DE4116365A1

公开(公告)日：1992-11-19

申请号：DE4116365

申请日：1991-05-18

Applicant: BASF AG

Inventor： HENKELMANN JOCHEM DR ,  TROETSCH-SCHALLER IRENE DR ,  WETTLING THOMAS DR ,  KAHL THOMAS-MICHAEL DR ,  HUPFER LEOPOLD DR ,  FRANZISCHKA WOLFGANG DR ,  KOEHLER HERMANN DR

IPC: B01J31/02 ,  C07B39/00 ,  C07B61/00 ,  C07C17/16 ,  C07C19/01 ,  C07C21/02 ,  C07C21/22 ,  C07C41/22 ,  C07C43/225

Abstract: Process for the preparation of alkyl, alkenyl and alkynyl chlorides by reaction of the corresponding alcohols with phosgene or thionyl chloride in the presence of a phosphine oxide as a catalyst, by using aliphatic, cycloaliphatic or cyclic-aliphatic phosphine oxides as catalyst.

公开(公告)号：DE4039750A1

公开(公告)日：1992-06-17

申请号：DE4039750

申请日：1990-12-13

Applicant: BASF AG

Inventor： HENKELMANN JOCHEM DR ,  KAHL THOMAS-MICHAEL DR ,  TROETSCH-SCHALLER IRENE DR ,  HUPFER LEOPOLD DR ,  FRANZISCHKA WOLFGANG DR ,  SCHWARZ WOLFGANG DR

IPC: B01D53/14 ,  B01D53/34 ,  B01D53/70

Abstract: To remove phosgene from off-gases, the former is reacted in a washing zone with a liquid which contains or is composed of compounds of the formula where R1 and R2 are identical or different and are each aliphatic or cycloaliphatic alkyl of 1 to 8 carbons, or R1 and R2 are -(CH2)n- where n is 4 or 5, R3 is hydrogen or aliphatic or cycloaliphatic alkyl of 1 to 6 carbon atoms, or R1 or R2 and R3 are -(CH2)m- where m is 3, 4 or 5. The liquid can be regenerated by the addition of water, and the regenerated liquid can be returned to the washing zone.