公开(公告)号：CA2445815C

公开(公告)日：2010-07-27

申请号：CA2445815

申请日：2003-03-04

Applicant: DEGUSSA

Inventor： JAEGER BERND ,  HAAS THOMAS ,  GLENNEBERG JUERGEN ,  GRUNERT JUERGEN

IPC: C01B15/023 ,  B01J23/96 ,  B01J35/02

Abstract: The invention relates to a process for the production of hydrogen peroxide by the anthraquinone process, comprising a hydrogenation stage, an oxidation stage and an extraction stage. According to the invention, catalytic hydrogenation of anthraquinone derivatives dissolved in a working solution is carried out in the presence of added molecular oxygen. Per mol hydrogen, 0.1 to 10 mmol oxygen is preferably introduced into the hydrogenation stage with the hydrogenating gas, in mixture with an inert gas and/or dissolved and/or dispersed in the working solution. This increases the residence time of the catalyst.

公开(公告)号：CA2529730C

公开(公告)日：2009-10-13

申请号：CA2529730

申请日：2004-06-11

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： ULLRICH NORBERT ,  STOCHNIOL GUIDO ,  JAEGER BERND ,  HOFEN WILLI ,  HAAS THOMAS ,  BRASSE CLAUDIA ,  WOELL WOLFGANG

IPC: C07D303/04 ,  C07D301/12

Abstract: The invention is directed to an improved process for the continuous epoxidation of propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent, wherein the catalyst is periodically regenerated by washing with a methanol solvent at a temperature of at least 100 ~C and the epoxidation reaction is carried out for periods o f more than 300 h between two regeneration steps.

公开(公告)号：AT422962T

公开(公告)日：2009-03-15

申请号：AT02012040

申请日：2002-05-31

Applicant: EVONIK DEGUSSA GMBH

Inventor： STOCHNIOL GUIDO ,  JAEGER BERND ,  HAAS THOMAS ,  FINKE NORBERT ,  BURKHARDT WERNER ,  GRUNERT JUERGEN

IPC: B01J23/46 ,  B01J35/10 ,  C07B61/00 ,  C07C209/72 ,  C07C211/36

Abstract: Hydrogenation of an amine with at least one aromatic ring-bonded amine group by reaction with hydrogen in presence of a supported catalyst with 0.01-20 wt.% active metal comprising ruthenium alone or with a sub-Group I, VII or VIII metal is such that the support has: (I) a BET surface area above 30 but below 70 m2/g; and (II) a macropore (diameter above 50nm) content above 50% and a mesopore (diameter 2-50nm) content below 50%.

公开(公告)号：CA2529730A1

公开(公告)日：2005-01-06

申请号：CA2529730

申请日：2004-06-11

Applicant: UHDE GMBH ,  DEGUSSA

Inventor： ULLRICH NORBERT ,  STOCHNIOL GUIDO ,  HAAS THOMAS ,  BRASSE CLAUDIA ,  WOELL WOLFGANG ,  HOFEN WILLI ,  JAEGER BERND

IPC: C07D303/04 ,  C07D301/12

Abstract: The invention is directed to an improved process for the continuous epoxidation of propene with hydrogen peroxide in the presence of a titanium silicalite catalyst and a methanol solvent, wherein the catalyst is periodically regenerated by washing with a methanol solvent at a temperature of at least 100 ~C and the epoxidation reaction is carried out for periods o f more than 300 h between two regeneration steps.

公开(公告)号：AU2003257422A1

公开(公告)日：2004-02-02

申请号：AU2003257422

申请日：2003-06-25

Applicant: DEGUSSA

Inventor： LETTMANN CHRISTIAN ,  HOFEN WILLI ,  STADTMULLER KLAUS ,  LOTZ JORG ,  JAEGER BERND ,  HAAS THOMAS ,  STOCHNIOL GUIDO

IPC: C07B61/00 ,  C07C209/72 ,  C07C211/36 ,  C07C209/00

公开(公告)号：DE10065030A1

公开(公告)日：2002-07-04

申请号：DE10065030

申请日：2000-12-23

Applicant: DEGUSSA

Inventor： OSTGARD DANIEL ,  ROEDER STEFAN ,  BERWEILER MONIKA ,  SAUER JOERG ,  JAEGER BERND ,  FINKE NORBERT ,  LETTMANN CHRISTIAN

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36

Abstract: Preparation of isophoronediamine (3-aminomethyl-3,5,5-trimethylcyclohexylamine) by aminating hydrogenation of isophorone nitrile and/or isophorone nitrile-imine in presence of ammonia and hydrogen over a shaped Raney catalyst, the new feature is that the catalyst is in the form of hollow particles.

公开(公告)号：CA2365836A1

公开(公告)日：2002-06-23

申请号：CA2365836

申请日：2001-12-20

Applicant: DEGUSSA

Inventor： LETTMANN CHRISTIAN ,  RODER STEFAN ,  FINKE NORBERT ,  SAUER JORG ,  JAEGER BERND ,  OSTGARD DANIEL ,  BERWEILER MONIKA

IPC: C07B61/00 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36 ,  B01J25/00

Abstract: Process for the preparation of isophorone diamine from isophorone nitrile, isophorone nitrilimine or mixtures containing isophorone nitrite and/or isophorone nitrilimine by hydrogenation through to amine in the presence of at least ammonia, hydrogen and a formed Raney hydrogenation catalyst based on cobalt, nickel, copper and/or iron, wherein the Raney catalyst is present in the form of hollow bodies.

公开(公告)号：DE19852104A1

公开(公告)日：2000-05-18

申请号：DE19852104

申请日：1998-11-12

Applicant: DEGUSSA

Inventor： WEBER ROBERT ,  KEIM WILHELM ,  JAEGER BERND ,  HAAS THOMAS ,  VANHEERTUM RUDOLF

IPC: B01J31/24 ,  C07B61/00 ,  C07C45/50 ,  C07C45/58 ,  C07C47/19

公开(公告)号：DE19840277A1

公开(公告)日：2000-03-09

申请号：DE19840277

申请日：1998-09-04

Applicant: DEGUSSA

Inventor： HAAS THOMAS ,  JAEGER BERND ,  SAUER JOERG ,  VANHEERTUM RUDOLF

IPC: B01J23/44 ,  B01J23/46 ,  B01J23/755 ,  C07B61/00 ,  C07C29/132 ,  C07C29/90 ,  C07C31/20 ,  C07C31/18

公开(公告)号：PL3380461T3

公开(公告)日：2020-01-31

申请号：PL16802026

申请日：2016-11-25

Applicant: EVONIK DEGUSSA GMBH ,  THYSSENKRUPP IND SOLUTIONS AG

Inventor： HOFEN WILLI ,  HAAS THOMAS ,  WÖLL WOLFGANG ,  KOLBE BÄRBEL ,  DIETZ HANS-CHRISTIAN ,  BRENDEL MARC ,  JAEGER BERND ,  BÄRZ MANFRED ,  KLEIBER MICHAEL

IPC: C07D301/12 ,  C07D301/32