公开(公告)号：PL376956A1

公开(公告)日：2006-01-09

申请号：PL37695603

申请日：2003-11-25

Applicant: DEGUSSA ,  UHDE GMBH

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

IPC: C07D301/12

公开(公告)号：BR0316539A

公开(公告)日：2005-10-04

申请号：BR0316539

申请日：2003-11-25

Applicant: DEGUSSA ,  UHDE GMBH

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

IPC: C07D301/12

Abstract: The present invention refers to a process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has been considerably reduced. In the process one or more nitrogen containing compounds are introduced at some stage, a solvent stream is recovered, treated to contain less than 50 wppm nitrogen in the form of organic nitrogen compounds and at least a part of it is recycled to the epoxidation step. The invention is also directed towards a process for the catalytic epoxidation of propene which integrates the inventive treatment and recycle of the solvent into the workup of the reaction mixture.

公开(公告)号：BR0314969A

公开(公告)日：2005-08-02

申请号：BR0314969

申请日：2003-09-23

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： BRASSE CLAUDIA ,  HAAS THOMAS ,  HOFEN WILLI ,  STOCHNIOL GUIDO ,  THIELE GEORG ,  LL WOLFGANG W

IPC: C07D301/12

Abstract: Epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst promoting the epoxidation reaction comprises an aqueous reaction mixture comprising an olefin; hydrogen peroxide; less than 100 wppm alkali metals, alkaline earth metals, both irrespective whether in ionic or complex form, bases, and/or cations of bases having a pkB of less than 4.5; and >= 100 wppm bases or cations of bases having a pkB of >= 4.5.

公开(公告)号：AU2003288162A8

公开(公告)日：2004-06-18

申请号：AU2003288162

申请日：2003-11-25

Applicant: UHDE GMBH ,  DEGUSSA

Inventor： BRASSE CLAUDIA ,  STOCHNIOL GUIDO ,  ULLRICH NORBERT ,  HAAS THOMAS ,  HOFEN WILLI ,  WOLL WOLFGANG

IPC: C07D301/12

Abstract: The present invention refers to a process for the catalytic epoxidation of olefins in the presence of a titanium containing zeolite catalyst and a polar solvent whereby the deactivation of the catalyst upon recycling of the solvent has been considerably reduced. In the process one or more nitrogen containing compounds are introduced at some stage, a solvent stream is recovered, treated to contain less than 50 wppm nitrogen in the form of organic nitrogen compounds and at least a part of it is recycled to the epoxidation step. The invention is also directed towards a process for the catalytic epoxidation of propene which integrates the inventive treatment and recycle of the solvent into the workup of the reaction mixture.

公开(公告)号：BR0309690B1

公开(公告)日：2015-01-06

申请号：BR0309690

申请日：2003-04-29

Applicant: UHDE GMBH ,  EVONIK DEGUSSA GMBH

Inventor： BERGES JOSE ,  EICKHOFF HUBERTUS ,  HAAS THOMAS ,  HOFEN WILLI ,  KAMPEIS PERCY ,  MOROFF GERALD ,  POHL WERNER ,  THIELE GEORG ,  WOLL WOLFGANG ,  BRASSE CLAUDIA ,  STOCHNIOL GUIDO ,  ULLRICH NORBERT

IPC: C07D301/12 ,  C07B61/00 ,  C07D303/04

Abstract: The present invention relates to a process for the epoxidation of olefins by i) reacting an olefin with hydrogen peroxide in presence of an epoxidation catalyst and an alcoholic solvent; ii) separating product olefin oxide and unreacted olefin from the reaction product of step i); iii) recovering a stream comprising the alcoholic solvent, characterized by iv) subjecting the recovered stream of step iii) to hydrogenation.

公开(公告)号：PL216070B1

公开(公告)日：2014-02-28

申请号：PL37449103

申请日：2003-09-23

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： BRASSE CLAUDIA ,  HAAS THOMAS ,  HOFEN WILLI ,  STOCHNIOL GUIDO ,  THIELE GEORG ,  WOELL WOLFGANG

IPC: C07D301/12

公开(公告)号：CA2500402C

公开(公告)日：2011-01-04

申请号：CA2500402

申请日：2003-09-23

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： BRASSE CLAUDIA ,  HAAS THOMAS ,  HOFEN WILLI ,  STOCHNIOL GUIDO ,  THIELE GEORG ,  WOELL WOLFGANG

IPC: C07D301/12

Abstract: The present invention refers to a continuos process for the epoxidation of olefins with hydrogen peroxide in presence of a heterogeneous catalyst promoting the epoxidation reaction, whereby the aqueous reaction mixture comprises: i) an olefin;ii) hydrogen peroxide;iii) less than 100 wppm of alkali metals, earth alkali metals, both irrespective whether in ionic, complex or covalently bonded form, bases or cations of bases having a pkB of less than 4.5, or combinations thereof; and iv) at least 100 wppm of bases or cations of bases having a pkB of at least 4.5 or combinations thereof,whereby the wppm are based on the total weight of hydrogen peroxide in the reaction mixture.

公开(公告)号：PL374491A1

公开(公告)日：2005-10-31

申请号：PL37449103

申请日：2003-09-23

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： BRASSE CLAUDIA ,  HAAS THOMAS ,  HOFEN WILLI ,  STOCHNIOL GUIDO ,  THIELE GEORG ,  WOELL WOLFGANG

IPC: C07D301/12

Abstract: Epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst promoting the epoxidation reaction comprises an aqueous reaction mixture comprising an olefin; hydrogen peroxide; less than 100 wppm alkali metals, alkaline earth metals, both irrespective whether in ionic or complex form, bases, and/or cations of bases having a pkB of less than 4.5; and >= 100 wppm bases or cations of bases having a pkB of >= 4.5.

公开(公告)号：CA2483447A1

公开(公告)日：2003-11-13

申请号：CA2483447

申请日：2003-04-29

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： MOROFF GERALD ,  POHL WERNER ,  ULLRICH NORBERT ,  THIELE GEORG ,  WOELL WOLFGANG ,  STOCHNIOL GUIDO ,  HAAS THOMAS ,  EICKHOFF HUBERTUS ,  HOFEN WILLI ,  KAMPEIS PERCY ,  BRASSE CLAUDIA ,  BERGES JOSE

IPC: C07B61/00 ,  C07D301/12 ,  C07D303/04

Abstract: The present invention relates to a process for the epoxidation of olefins by i) reacting an olefin with hydrogen peroxide in presence of an epoxidation catalyst and an alcoholic solvent; ii) separating product olefin oxide and unreacted olefin from the reaction product of step i); iii) recovering a stream comprising the alcoholic solvent,characterized by iv) subjecting the recovered stream of step iii) to hydrogenation.

公开(公告)号：DE60304169T3

公开(公告)日：2015-01-08

申请号：DE60304169

申请日：2003-04-29

Applicant: EVONIK DEGUSSA GMBH ,  UHDE GMBH

Inventor： BERGES JOSE ,  BRASSE CLAUDIA ,  EICKHOFF HUBERTUS ,  HAAS THOMAS ,  HOFEN WILLI ,  KAMPEIS PERCY ,  MOROFF GERALD ,  POHL WERNER ,  STOCHNIOL GUIDO ,  ULLRICH NORBERT ,  WOELL WOLFGANG ,  THIELE GEORG

IPC: C07D301/12 ,  C07B61/00 ,  C07D303/04