公开(公告)号：AT292602T

公开(公告)日：2005-04-15

申请号：AT00975919

申请日：2000-10-26

Applicant: DEGUSSA

Inventor： HAAS THOMAS DR ,  GLENNEBERG JUERGEN ,  WAGNER RUDOLF ,  CREUTZ MATTHIAS ,  SAUER JOERG ,  VANHEERTUM RUDOLF

IPC: B01J8/02 ,  B01J10/00 ,  B01J23/44 ,  B01J35/02 ,  C01B15/023

Abstract: In carrying out the hydrogenation stage of the anthraquinone process for the preparation of hydrogen peroxide in a hydrogenation reactor on a fixed bed catalyst of a particulate catalyst, the service life of the catalyst is increased in that the working solution comprising the reaction carrier and a gas phase comprising hydrogen, are passed through the hydrogenation reactor from the bottom upwards. The empty tube speed of the working solution is 0.05 to 100 m/h, preferably 10 to 50 m/h.

公开(公告)号：NO20010792A

公开(公告)日：2001-08-20

申请号：NO20010792

申请日：2001-02-16

Applicant: DEGUSSA

Inventor： OSTGARD DANIEL ,  SAUER JOERG ,  FREUND ANDREAS ,  BERWEILER MONIKA ,  HOEPP MATTHIAS ,  VANHEERTUM RUDOLF ,  GIRKE WALTHER

IPC: B01J25/00 ,  B01J20060101 ,  B01J23/70 ,  B01J23/72 ,  B01J23/847 ,  B01J23/86 ,  B01J23/89 ,  B01J37/00 ,  C01G3/00 ,  C07B35/04 ,  C07B61/00 ,  C07C20060101 ,  C07C51/00 ,  C07C51/16 ,  C07C51/23 ,  C07C51/295 ,  C07C55/06 ,  C07C55/07 ,  C07C59/06 ,  C07C227/02 ,  C07C229/08 ,  C07C229/12 ,  C07C229/16 ,  C07F9/38 ,  C22C9/00 ,  C22C9/01 ,  C22F1/00 ,  C22F1/08

CPC classification number: B01J25/00 ,  B01J23/8472 ,  B01J23/868 ,  B01J23/8926 ,  C07C51/295 ,  C07C227/02 ,  C07C59/06 ,  C07C55/07 ,  C07C229/16

公开(公告)号：BR9704904A

公开(公告)日：1998-10-27

申请号：BR9704904

申请日：1997-09-26

Applicant: DEGUSSA

Inventor： SAUER JOERG ,  HIPPEL LUKAS VON ,  BOECK WOLFGANG ,  ARNTZ DIETRICH

IPC: B01J23/04 ,  B01J23/30 ,  B01J37/02 ,  C07B61/00 ,  C07C319/00 ,  C07C319/08 ,  C07C321/04 ,  B01J21/04

Abstract: In an aluminium oxide (I) catalyst for the synthesis of methyl mercaptan containing 5-25 wt.% potassium tungstate (II) as promoter with respect to active (I), (II) is deposited in 2 portions. (I) is first coated with the first portion of (II) by impregnation in excess aqueous solution, then dried at elevated temperature. Then the second portion is applied by pore volume impregnation. The catalyst precursor is then dried at elevated temperature and calcined at 200-600 degrees C.

公开(公告)号：BR9701940A

公开(公告)日：1998-08-18

申请号：BR9701940

申请日：1997-04-25

Applicant: DEGUSSA

Inventor： SAUER MANFRED ,  SAUER JOERG ,  BUSSEK CHRISTIAN ,  VON HIPPEL LUKAS ,  ARNTZ DIETRICH

IPC: B01J23/40 ,  B01J23/42 ,  B01J27/24 ,  B01J37/02 ,  C01C3/02

Abstract: Production of catalytically active coatings on the surface of ceramic mouldings comprises uniformly wetting the mouldings with a coating dispersion containing a particulate Pt metal and a further coating component in a carrier fluid, vaporising the carrier fluid, and converting the coating into the catalytically active state by slowing heating in the presence of nitrogen and/or ammonia to 1000-1350 degrees C. Particulate nitrides with Al, B, Ti or Si as cations are used as the further component. The particulate components have an average particle size of

公开(公告)号：MX9710336A

公开(公告)日：1998-06-30

申请号：MX9710336

申请日：1997-12-18

Applicant: DEGUSSA

Inventor： HOFEN WILLI ,  BOECK WOLFGANG ,  RAUTENBERG STEFAN ,  SAUER JOERG ,  ARNTZ DIETRICH ,  GOEDECKE RALF ,  TAUGNER WOLFGANG ,  SONNENSCHEIN RAYMUND

IPC: B01J23/30 ,  B01J21/04 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04

Abstract: La presente invencion se refiere a un procedimiento para la preparacion continua de metilmercaptano por medio de la reaccion catalítica de metanol e hidrogeno sulfurado. La invencion incluye mejoras esenciales en la preparacion de la mezcla gaseosa de educto así como el aprovechamiento del calor de reaccion y del contenido de calor de la mezcla de gas de producto. La energía necesaria para la evaporacion del metanol se obtiene parcialmente por medio del aprovechamiento del calor de compresion para el gas de hidrogeno sulfurado así como por el contenido de calor de los gases de producto que salen del reactor. El calor de reaccion se utiliza para calentar la mezcla gaseosa de educto a la temperatura de reaccion con la ayuda de un calentador de gas externo.

公开(公告)号：MX9707253A

公开(公告)日：1998-03-31

申请号：MX9707253

申请日：1997-09-23

Applicant: DEGUSSA

Inventor： SAUER JOERG ,  BOECK WOLFGANG ,  HIPPEL LUKAS VON ,  BURKHARDT WERNER ,  RAUTENBERG STEPHAN ,  ARNTZ DIETRICH ,  HOFEN WILLI

IPC: B01J23/04 ,  B01J23/30 ,  B01J35/10 ,  B01J37/02 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04 ,  C07C321/12

Abstract: La presente invencion se relaciona con un catalizador para la síntesis de metilmercaptano a partir de metanol y ácido sulfhídrico y con un procedimiento para la fabricacion de este catalizador. El catalizador de oxido de aluminio activo, sobre el cual está depositado 15 a 40% en peso de wolframato de cesio como promotor. El promotor wolframato de cesio conduce a un inesperado aumento de actividad y selectividad comparado con el wolframato de potasio empleado exclusivamente en el estado de la técnica.

公开(公告)号：DE60204673T2

公开(公告)日：2006-05-11

申请号：DE60204673

申请日：2002-03-02

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： HAAS THOMAS ,  HOFEN WILLI ,  SAUER JOERG ,  THIELE GEORG

IPC: C07D301/12 ,  C07D303/04

Abstract: Catalytic epoxidation of olefins with hydrogen peroxide uses a continuous flow reaction system. The reaction mixture is passed through a fixed catalyst bed within a reactor equipped with cooling device, while maintaining a temperature profile within the reactor so that the cooling medium temperature of the cooling device is at least 40[deg]C and the maximum temperature within the catalyst bed is 60[deg]C.

公开(公告)号：AT297909T

公开(公告)日：2005-07-15

申请号：AT02740416

申请日：2002-03-02

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： HAAS THOMAS ,  HOFEN WILLI ,  SAUER JOERG ,  THIELE GEORG

IPC: C07D301/12 ,  C07D303/04

Abstract: Catalytic epoxidation of olefins with hydrogen peroxide uses a continuous flow reaction system. The reaction mixture is passed through a fixed catalyst bed within a reactor equipped with cooling device, while maintaining a temperature profile within the reactor so that the cooling medium temperature of the cooling device is at least 40[deg]C and the maximum temperature within the catalyst bed is 60[deg]C.

公开(公告)号：DE19644188C2

公开(公告)日：2003-03-27

申请号：DE19644188

申请日：1996-10-24

Applicant: DEGUSSA

Inventor： RUF STEFFEN ,  EMIG GERHARD ,  BUSSEK CHRISTIAN ,  SAUER JOERG ,  HIPPEL LUKAS VON ,  ARNTZ DIETRICH

IPC: B01J23/04 ,  C07C45/00 ,  C07C47/052 ,  C07C45/29

公开(公告)号：CA2440098A1

公开(公告)日：2002-10-31

申请号：CA2440098

申请日：2002-03-04

Applicant: DEGUSSA ,  UHDE GMBH

Inventor： HAAS THOMAS ,  HOFEN WILLI ,  SAUER JOERG ,  THIELE GEORG

IPC: C07D301/12 ,  C07D303/04

Abstract: The invention described herein relates to a process for the catalytic epoxidation of olefins with hydrogen peroxide in a continuous flow reaction system, wherein the reaction mixture is passed through a fixed catalyst bed in down-flow operation mode and the reaction heat is at least partially removed during the course of the reaction.