公开(公告)号：BR9304942A

公开(公告)日：1994-06-07

申请号：BR9304942

申请日：1993-12-03

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ROTGERINK HANS LANSINK DR

IPC: B01J27/13 ,  B01J23/40 ,  C07B61/00 ,  C10G35/09 ,  F02B1/04

公开(公告)号：AU615375B2

公开(公告)日：1991-09-26

申请号：AU5002690

申请日：1990-02-21

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND DR ,  HONNEN WOLFGANG DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR

IPC: B01J23/84 ,  B01D53/92 ,  B01D53/94 ,  B01J21/06 ,  B01J23/00 ,  B01J23/20 ,  B01J23/22 ,  B01J23/30 ,  B01J23/76 ,  B01J23/85 ,  B01J27/18 ,  B01J27/19 ,  B01J27/199 ,  B01J35/10 ,  B01J37/00 ,  B01J37/04 ,  B01D53/36 ,  B01J23/74 ,  B01J23/78 ,  B01J27/198 ,  B01J27/195 ,  B01J27/185 ,  B01J23/28

Abstract: A catalyst for the selective reduction of nitrogen oxides by means of ammonia contains, in addition to titanium oxide as component A), at least one oxide selected from the group comprising W, Si, B, Al, P, Zr, Ba, Y, La and Ce and at least one oxide selected from the group comprising V, Nb, Mo, Fe and Cu as component B), the atomic ratio between the elements of the components A) and B) being 1 : 0.001 to 1. The catalyst is obtainable by kneading reactive titanium oxide of high specific surface area comprising predominantly anatase with the substances comprising component B) or their precursors with the addition of processing agents to give a homogeneous kneaded mass, extruding this, drying the extrudate and calcination in air at 300 - 800 DEG C.

公开(公告)号：DE3761876D1

公开(公告)日：1990-04-19

申请号：DE3761876

申请日：1987-01-07

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND DR ,  KLEINE-MOELLHOFF PETER ,  KOBERSTEIN EDGAR DR ,  VOELKER HERBERT

IPC: B01D53/86 ,  B01D53/94 ,  F23J15/00 ,  B01D53/36

公开(公告)号：DE3740289A1

公开(公告)日：1989-06-08

申请号：DE3740289

申请日：1987-11-27

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  HONNEN WOLFGANG DR ,  KLEINE-MOELLHOFF PETER ,  KOBERSTEIN EDGAR DR

IPC: B01D53/94 ,  B01D53/86 ,  B01J21/06 ,  B01J23/30 ,  B01J23/85 ,  B01J23/88 ,  C01G23/07

Abstract: A catalyst for the selective reduction with ammonia of nitrogen oxides from an intimate mixture of at least 3 metals in the form of their oxides, namely, titanium, tungsten and at least one of the metals vanadium, iron, niobium, molybdenum, with an atomic ratio of Ti to the other metals of 1:0.001 to 1, wherein there is used as oxide of the titanium a product obtained by flame hydrolysis, which product is impregnated with solutions of the salts of the other metals and is dried and calcined at a high temperature.

公开(公告)号：DE3601378A1

公开(公告)日：1987-07-23

申请号：DE3601378

申请日：1986-01-18

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND DR ,  KLEINE-MOELLHOFF PETER ,  KOBERSTEIN EDGAR DR ,  VOELKER HERBERT

IPC: B01D53/86 ,  B01D53/94 ,  F23J15/00 ,  B01D53/36 ,  A62D3/00 ,  B01D53/34 ,  C01B17/76

公开(公告)号：DE59503910D1

公开(公告)日：1998-11-19

申请号：DE59503910

申请日：1995-07-04

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  FREUND ANDREAS DR ,  LANG JUTTA DR ,  LEHMANN THOMAS DR ,  OHMER JOHANNES DR ,  TACKE THOMAS DR ,  HEINZ GERHARD ,  SCHWARZ ROBERT

IPC: B01J23/89 ,  B01J37/03 ,  H01M4/92

Abstract: A ternary platinum alloy catalyst on a conductive carbon carrier for use in fuel cells is disclosed. For the production of the catalyst, nitrate salts are used as precursors of the alloy components and all alloy components are deposited concurrently on the carbon carrier. This method of procedure yields ageing-stable catalysts with high oxygen mass activity.

公开(公告)号：AT125245T

公开(公告)日：1995-08-15

申请号：AT92118583

申请日：1992-10-30

Applicant: DEGUSSA

Inventor： HAAS THOMAS DR ,  ARNTZ DIETRICH DR ,  BRAND REINHOLD DR

IPC: B01J27/16 ,  B01J21/06 ,  B01J27/14 ,  C07B61/00 ,  C07C45/64 ,  C07C47/19

Abstract: A process for the production of 3-hydroxyalkanals, more particularly 3-hydroxypropionaldehyde, by hydration of the basic 2-alkenals, more particularly acrolein, in the presence of a solid catalyst containing acid functional groups. The catalysts are based on an inorganic support containing basic activity centers (which are at least partly occupied by a polybasic acid, of which the first pKs value is between 0 and 3, in a form in which it cannot be removed by water) enables the hydration to be carried out with high selectivity. At the same time, the disadvantages of known organic fixed-bed catalysts are avoided. Preferred catalyst are based on pyrogenic titanium dioxide with phosphoric acid fixed thereon.

公开(公告)号：ES2070348T3

公开(公告)日：1995-06-01

申请号：ES91101249

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：BR9400041A

公开(公告)日：1994-07-26

申请号：BR9400041

申请日：1994-01-06

Applicant: DEGUSSA

Inventor： BANKMANN MARTIN DR ,  BRAND REINHOLD DR ,  FREUND ANDREAS DR ,  TRACKE THOMAS DR

IPC: B01J23/40 ,  B01J37/02 ,  C07C1/207 ,  C07C1/22 ,  C07C17/00 ,  C07C29/141 ,  C07C33/20 ,  C07C33/46 ,  C07C41/01 ,  C07C43/164 ,  C07C43/17 ,  C07C51/347 ,  C07C51/367 ,  C07C51/487 ,  C07C51/377 ,  C07C27/04 ,  C07C65/03 ,  C07C63/04 ,  C07C63/06 ,  C07C43/20

Abstract: The invention relates to a process for the selective catalytic hydrogenation of the carbonyl group of aromatic aldehydes of the formula in which X can be a carboxyl group, a methyl group or halogen, to give the corresponding alcohols and methyl compounds. The catalytic hydrogenation is carried out with the addition of a solvent, if appropriate in the presence of organic acids, on a shaped supported catalyst containing a metal from the platinum group on a titanium oxide support in the presence of hydrogen at partial pressure of hydrogen of 5 to 50 bar and temperatures of from 100 to 300@C.

公开(公告)号：DE4300297A1

公开(公告)日：1994-07-21

申请号：DE4300297

申请日：1993-01-08

Applicant: DEGUSSA

Inventor： BANKMANN MARTIN DR ,  BRAND REINHOLD DR ,  FREUND ANDREAS DR ,  TACKE THOMAS DR

IPC: B01J23/40 ,  B01J37/02 ,  C07C1/207 ,  C07C1/22 ,  C07C17/00 ,  C07C29/141 ,  C07C33/20 ,  C07C33/46 ,  C07C41/01 ,  C07C43/164 ,  C07C43/17 ,  C07C51/347 ,  C07C51/367 ,  C07C51/487 ,  C07B41/02 ,  C07B41/04

Abstract: The invention relates to a process for the selective catalytic hydrogenation of the carbonyl group of aromatic aldehydes of the formula in which X can be a carboxyl group, a methyl group or halogen, to give the corresponding alcohols and methyl compounds. The catalytic hydrogenation is carried out with the addition of a solvent, if appropriate in the presence of organic acids, on a shaped supported catalyst containing a metal from the platinum group on a titanium oxide support in the presence of hydrogen at partial pressure of hydrogen of 5 to 50 bar and temperatures of from 100 to 300@C.