公开(公告)号：DE10231119A1

公开(公告)日：2004-02-05

申请号：DE10231119

申请日：2002-07-10

Applicant: DEGUSSA

Inventor： JAEGER BERND ,  HAAS THOMAS ,  STOCHNIOL GUIDO ,  LETTMANN CHRISTIAN ,  HOFEN WILLI ,  STADTMUELLER KLAUS ,  LOTZ JOERG

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

公开(公告)号：AU2003257422A8

公开(公告)日：2004-02-02

申请号：AU2003257422

申请日：2003-06-25

Applicant: DEGUSSA

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

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

公开(公告)号：ZA201804073B

公开(公告)日：2019-04-24

申请号：ZA201804073

申请日：2018-06-18

Applicant: EVONIK DEGUSSA GMBH

Inventor： WIEDERHOLD HOLGER ,  BOLZ DAVID ,  JAEGER BERND ,  KÖHLE HANS-JÜRGEN ,  IMM SEBASTIAN ,  THIELE GEORG FRIEDRICH

Abstract: The invention relates to a method for producing propylene glycol from propene and hydrogen peroxide, comprising the following steps: a) reacting propene with hydrogen peroxide in the presence of a catalyst mixture comprising a phase transfer catalyst and a heteropolytungstate, wherein the reaction is carried out in a fluid mixture comprising an aqueous phase with a maximum pH of (6) and an organic phase; b) dividing the two-phase mixture from step a) into an aqueous phase and an organic phase containing propylene oxide; c) returning the propylene oxide contained in the separated organic phase into the reaction from step a); and d) separating propylene glycol from the aqueous phase separated in step b).

公开(公告)号：CA3006136A1

公开(公告)日：2017-06-01

申请号：CA3006136

申请日：2016-11-01

Applicant: EVONIK DEGUSSA GMBH

Inventor： WIEDERHOLD HOLGER ,  BOLZ DAVID ,  JAEGER BERND ,  KOHLE HANS-JURGEN ,  IMM SEBASTIAN ,  THIELE GEORG FRIEDRICH

IPC: C07C29/48 ,  C07C31/20

Abstract: The invention relates to a method for producing propylene glycol from propene and hydrogen peroxide, comprising the following steps: a) reacting propene with hydrogen peroxide in the presence of a catalyst mixture comprising a phase transfer catalyst and a heteropolytungstate, wherein the reaction is carried out in a fluid mixture comprising an aqueous phase with a maximum pH of (6) and an organic phase; b) dividing the two-phase mixture from step a) into an aqueous phase and an organic phase containing propylene oxide; c) returning the propylene oxide contained in the separated organic phase into the reaction from step a); and d) separating propylene glycol from the aqueous phase separated in step b).

公开(公告)号：ES2280424T3

公开(公告)日：2007-09-16

申请号：ES01992614

申请日：2001-10-10

Applicant: DEGUSSA

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

IPC: C07C209/72 ,  B01J23/46 ,  B01J35/10 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20 ,  C07C211/17 ,  C07C211/36

Abstract: Procedimiento para la hidrogenación catalítica de un compuesto orgánico tomado de la serie de las aminas aromáticas y heteroaromáticas en presencia de un catalizador con soporte, con un material de soporte del tipo de óxido, carburo, nitruro o silicato, y con un revestimiento que contiene rutenio como metal activo, teniendo el material de soporte, antes de la carga con por lo menos un metal activo, una superficie según BET(N2) de menos que 10 m2/g y estando excluida una tierra de diatomeas con una superficie según BET(N2) de más que 2 m2/g, caracterizado porque se utiliza un catalizador con soporte, cuyo contenido de rutenio es de 1, 6 a 3 % en peso, y cuyo contenido de rutenio constituye por lo menos un 50 % en peso de los metales activos.

公开(公告)号：DE60302898T2

公开(公告)日：2006-08-03

申请号：DE60302898

申请日：2003-06-25

Applicant: DEGUSSA

Inventor： JAEGER BERND ,  HAAS THOMAS ,  STOCHNIOL GUIDO ,  LETTMANN CHRISTIAN ,  HOFEN WILLI ,  STADTMUELLER KLAUS ,  LOTZ JOERG

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

公开(公告)号：ES2250913T3

公开(公告)日：2006-04-16

申请号：ES03763651

申请日：2003-06-25

Applicant: DEGUSSA

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

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

Abstract: Procedimiento para la producción de 4, 4¿-diaminodiciclohexilmetano (4, 4¿-HMDA) por hidrogenación catalítica de una mezcla de sustancias que contiene 4, 4¿-diaminodifenilmetano (4, 4¿-MDA) como componente principal, y su derivado mono-N-metilo como componente secundario, dotado de una selectividad incrementada con respecto a la hidrogenación de 4, 4¿-MDA en presencia de un catalizador heterogéneo de hidrogenación, a una temperatura en el intervalo de 50 a 220ºC, y una presión de hidrógeno en el intervalo de 1 a 30 MPa, caracterizado porque la

公开(公告)号：AT312796T

公开(公告)日：2005-12-15

申请号：AT03709743

申请日：2003-03-04

Applicant: DEGUSSA

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

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

Abstract: Hydrogenation stage in anthraquinone process for hydrogen peroxide production also involving an oxidation stage in which anthraquinone derivative formed in hydrogenation stage is converted to H2O2 by reaction with oxygen-containing gas is effected in presence of added molecular oxygen under explosive conditions, the O2 being introduced in the form and an O2-containing gas. The hydrogenation stage in the anthraquinone process for hydrogen peroxide production also involving an oxidation stage in which the anthraquinone derivative formed in the hydrogenation stage is converted to H2O2 by reaction with an oxygen-containing gas (especially air) is effected in presence of added molecular oxygen at 0.02 mmol of O2 per mol H2 under explosive conditions, the O2 being introduced in the form and an O2-containing gas.

公开(公告)号：DE19844325A1

公开(公告)日：2000-03-30

申请号：DE19844325

申请日：1998-09-28

Applicant: DEGUSSA

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

IPC: B01J8/02 ,  C07B61/00 ,  C07C29/141 ,  C07C29/145 ,  C07C31/10 ,  C07C31/20 ,  C07C31/26 ,  B01J23/46 ,  C07C29/14 ,  C07C29/143 ,  C07C31/02

Abstract: A ruthenium catalyst with 0.1-20 wt% Ru on an oxide support comprising titanium, silicon or zirconium dioxide, magnesium oxide, mixed oxide or silicate (not including zeolites) is used in a process for the production of alcohols by catalytic hydrogenation of aldehydes (except 3-hydroxy-propionaldehyde) or ketones in solution at 20-200 degrees C and 0.5-30 MPa.

公开(公告)号：CA2492095C

公开(公告)日：2011-08-09

申请号：CA2492095

申请日：2003-06-25

Applicant: DEGUSSA

Inventor： JAEGER BERND ,  HAAS THOMAS ,  STOCHNIOL GUIDO ,  LETTMANN CHRISTIAN ,  HOFEN WILLI ,  STADTMUELLER KLAUS ,  LOTZ JOERG

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

Abstract: The invention relates to a process for increasing the selectivity of the hydrogenation of 4,4'-diaminodiphenylmethane (4,4'-MDA) to diaminodicyclohexylmethane (4,4'-HMDA) by catalytic hydrogenation of a mixture containing 4,4'-MDA as the main component and its mono-N-methyl derivative as a secondary component. According to the invention, the hydrogenation is terminated before a conversion of 4,4'-MDA to 4,4'-HMDA of 99% is achieved. Under these conditions, a substantially smaller proportion of the N-methyl-4,4'-MDA is hydrogenated to N-methyl-4,4-HMDA.