公开(公告)号：DE2964814D1

公开(公告)日：1983-03-24

申请号：DE2964814

申请日：1979-08-08

Applicant: BAYER AG

Inventor： RAULEDER GEBHARD DR ,  WALDMANN HELMUT DR ,  BOTTENBRUCH LUDWIG DR ,  PRATER KLAUS DR ,  SEIFERT HERMANN DR ,  SWODENK WOLFGANG DR

IPC: C07D301/14 ,  C07D303/16

公开(公告)号：DE2861847D1

公开(公告)日：1982-07-08

申请号：DE2861847

申请日：1978-07-18

Applicant: BAYER AG

Inventor： RAULEDER GEBHARD DR ,  SEIFERT HERMANN DR ,  WALDMANN HELMUT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07D301/14 ,  C07D303/08 ,  C07D303/48

公开(公告)号：DE2658866A1

公开(公告)日：1978-07-06

申请号：DE2658866

申请日：1976-12-24

Applicant: BAYER AG

Inventor： SEIFERT HERMANN DR ,  WALDMANN HELMUT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07B31/00 ,  C07B41/02 ,  C07C27/00 ,  C07C37/60 ,  C07C39/08 ,  C07C39/12 ,  C07C39/14 ,  C07C39/15 ,  C07C39/38 ,  C07C67/00 ,  C07C205/22 ,  C07C301/00 ,  C07C309/42 ,  C07C37/00 ,  C07C39/24

公开(公告)号：DE2633395A1

公开(公告)日：1978-02-02

申请号：DE2633395

申请日：1976-07-24

Applicant: BAYER AG ,  DEGUSSA

Inventor： PRESCHER GUENTER DR ,  SCHREYER GERD DR ,  WEIBERG OTTO DR ,  WIRTHWEIN ROLF DR ,  WALDMANN HELMUT DR ,  SEIFERT HERMANN DR ,  SCHWERDTEL WULF ,  SWODENK WOLFGANG DR

IPC: C07C409/24 ,  C07D301/14 ,  C07D303/04 ,  C07D301/12

公开(公告)号：DE2519838A1

公开(公告)日：1976-11-11

申请号：DE2519838

申请日：1975-05-03

Applicant: BAYER AG

Inventor： HALCOUR KURT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: B01J23/648 ,  C07C85/11 ,  C07C87/50

Abstract: Catalytic hydrogenation of nitro cpds. to amines in the spray phase over a stationary catalyst is improved by using a catalyst having particles with a dia. of 0.5-3 mm (pref. 1.5-2.5 mm) in the form of spheres (pref.) cylinders, extruded bodies, granules or flakes. The catalyst pref. contains Pd and/or Pt opt. with V (pref. Pt and V) on a carrier such as alumina (pref.), silica, or aluminosilicate, a spinel, magnesia, baryte or active carbon. The catalyst has long service life (>10,000 k), and there is no encrustation on the catalyst particles.

公开(公告)号：DE2410742A1

公开(公告)日：1975-09-18

申请号：DE2410742

申请日：1974-03-06

Applicant: BAYER AG

Inventor： SEIFERT HERMANN DR ,  WALDMANN HELMUT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07C27/00 ,  C07C37/60 ,  C07C39/08 ,  C07C67/00

Abstract: A process for the production of pyrocatechol and hydroquinone by the hydroxylation of phenol in the nucleus with hydrogen peroxide, wherein phenol is reacted at the start of the reaction with substantially anhydrous hydrogen peroxide and wherein the reaction is carried out in the presence of a strong acid.

公开(公告)号：DE2344604A1

公开(公告)日：1975-03-27

申请号：DE2344604

申请日：1973-09-05

Applicant: BAYER AG

Inventor： SEIFERT HERMANN DR ,  WALDMANN HELMUT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07D229/00 ,  C01B21/16 ,  C07B61/00 ,  C07C67/00 ,  C07C241/00 ,  C07C251/88 ,  C07C119/12

公开(公告)号：DE2252674A1

公开(公告)日：1974-05-09

申请号：DE2252674

申请日：1972-10-27

Applicant: BAYER AG

Inventor： WALDMANN HELMUT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07C45/27 ,  B01J23/00 ,  B01J31/00 ,  C07B61/00 ,  C07C45/00 ,  C07C45/28 ,  C07C47/00 ,  C07C47/12 ,  C07C67/00 ,  C07C45/04 ,  C07C47/54

公开(公告)号：DE2019596A1

公开(公告)日：1971-11-04

申请号：DE2019596

申请日：1970-04-23

Applicant: BAYER AG

Inventor： GRUDE FRITZ DIPL-ING ,  WOERNLE PETER DR ,  HALCOUR KURT DR ,  SCHWERDTEL WULF DR ,  SWODENK WOLFGANG DR

IPC: C07C4/22 ,  C07C3/26

Abstract: 1342953 Cyclopentadiene BAYER AG 23 April 1971 [23 April 1970] 10946/71 Heading C5E Cyclopentadiene is produced by splitting dicyclopentadiene which has been obtained in the form of a concentrate by the heat treatment of a C 5 fraction of a pyrolysis petrol and subsequent enrichment by fractional distillation and which contains thermally stable dimers of isoprene and co-dimers of Cyclopentadiene, isoprene and piperylene wherein the splitting is effected in liquid phase at normal or slightly excess pressure at 170-250‹ C. and wherein a concentration of 10-70% by wt. is maintained in the bottom sump of the splitting apparatus for said thermally stable dimers and co-dimers which are obtained as bottom product of the splitting treatment.

公开(公告)号：DE1959780A1

公开(公告)日：1971-06-03

申请号：DE1959780

申请日：1969-11-28

Applicant: BAYER AG

Inventor： SCHARFE GERHARD DR ,  GROLIG JOHANN DR ,  MARTIN MANFRED DR ,  SWODENK WOLFGANG DR ,  DORNFELDT WOLFRAM DR

IPC: C07C47/02