公开(公告)号：RU2022643C1

公开(公告)日：1994-11-15

申请号：SU4831754

申请日：1990-12-07

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSHTAJN EDGAR ,  FELKER KHERBERT

IPC: F01N3/28 ,  B01D53/86 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J23/89 ,  B01J29/18 ,  B01J29/22 ,  B01J35/04 ,  B01J37/02 ,  F02B3/06 ,  B01D53/36

Abstract: An open-cell, monolithic catalyst for the purification of diesel-engine exhaust gas with a coating of finely divided inorganic oxides containing vanadium and platinum group metal as active components. The active components of the oxidic coating are added as water-soluble precursors which are then converted by means of tempering, preferably in an atmosphere of hydrogen, into the active component.

公开(公告)号：CA2107654A1

公开(公告)日：1994-04-06

申请号：CA2107654

申请日：1993-10-04

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  LOX EGBERT

IPC: B01D53/86 ,  B01D53/94 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B21D47/00 ,  F01N3/028 ,  F01N3/28

Abstract: Monolithic catalytic converters with a metal carrier comprising a catalytically coated matrix consisting of several sheet-metal stacks of corrugated or alternately corrugated and flat metal strips intertwined with one another, whereby the free ends of said metal strips are connected by a joining process with a surrounding jacket tube of any required cross-section, may be produced very economically and with a catalytic coating, the thickness of which is extremely homogeneous, by assembling the sheet-metal stacks required for the catalytic converter with a metal carrier from precoated metal strips cut to length and intertwining them with one another 80 as to form the matrix, whereupon the matrix is inserted into the jacket tube and the free ends of the metal strips are secured by welding to the jacket tube.

公开(公告)号：DE4213018C1

公开(公告)日：1993-12-09

申请号：DE4213018

申请日：1992-04-21

Applicant: DEGUSSA

Inventor： LEYRER JUERGEN ,  LOX EGBERT ,  ENGLER BERND ,  DOMESLE RAINER

IPC: F01N3/10 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J29/04 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  F02B3/06 ,  F01N3/20

Abstract: The invention relates to a catalyst for the oxidative purification of exhaust gases of diesel engines with a high conversion efficiency for hydrocarbons and carbon monoxide and an inhibited oxidation effect with respect to nitrogen oxides and sulphur dioxide, containing a monolithic catalyst body which has ducts of ceramic or metal, through which free flow is possible, and is coated with an activity-promoting dispersion coating consisting of the finely particulate metal oxides aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof as a support for the catalytically active components, the active components being present as platinum metals platinum, palladium, rhodium and/or iridium, which are doped with vanadium or are in contact with an oxidic vanadium compound. The reduced oxidation effect with respect to sulphur dioxide is achieved by the finely particulate metal oxides being surface-modified aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof. The surface modification consists in the specific surface of the metal oxides being coated with a layer consisting of titanium dioxide or silicon dioxide and comprising from 1 to 5 monolayers.

公开(公告)号：ZA932806B

公开(公告)日：1993-11-16

申请号：ZA932806

申请日：1993-04-21

Applicant: DEGUSSA

Inventor： LEYRER JUERGEN ,  LOX EGBERT ,  ENGLER BERND ,  DOMESLE RAINER

IPC: F01N3/10 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J29/04 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  F02B3/06 ,  B01J ,  B01D ,  F01N

Abstract: The invention relates to a catalyst for the oxidative purification of exhaust gases of diesel engines with a high conversion efficiency for hydrocarbons and carbon monoxide and an inhibited oxidation effect with respect to nitrogen oxides and sulphur dioxide, containing a monolithic catalyst body which has ducts of ceramic or metal, through which free flow is possible, and is coated with an activity-promoting dispersion coating consisting of the finely particulate metal oxides aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof as a support for the catalytically active components, the active components being present as platinum metals platinum, palladium, rhodium and/or iridium, which are doped with vanadium or are in contact with an oxidic vanadium compound. The reduced oxidation effect with respect to sulphur dioxide is achieved by the finely particulate metal oxides being surface-modified aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof. The surface modification consists in the specific surface of the metal oxides being coated with a layer consisting of titanium dioxide or silicon dioxide and comprising from 1 to 5 monolayers.

公开(公告)号：BR9301613A

公开(公告)日：1993-10-26

申请号：BR9301613

申请日：1993-04-20

Applicant: DEGUSSA

Inventor： LEYRER JUERGEN ,  LOX EGBERT ,  ENGLER BERND ,  DOMESLE RAINER

IPC: F01N3/10 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J29/04 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  F02B3/06 ,  B01J23/40 ,  F02M27/02

Abstract: The invention relates to a catalyst for the oxidative purification of exhaust gases of diesel engines with a high conversion efficiency for hydrocarbons and carbon monoxide and an inhibited oxidation effect with respect to nitrogen oxides and sulphur dioxide, containing a monolithic catalyst body which has ducts of ceramic or metal, through which free flow is possible, and is coated with an activity-promoting dispersion coating consisting of the finely particulate metal oxides aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof as a support for the catalytically active components, the active components being present as platinum metals platinum, palladium, rhodium and/or iridium, which are doped with vanadium or are in contact with an oxidic vanadium compound. The reduced oxidation effect with respect to sulphur dioxide is achieved by the finely particulate metal oxides being surface-modified aluminium oxide, titanium oxide, silicon oxide, zeolite or mixtures thereof. The surface modification consists in the specific surface of the metal oxides being coated with a layer consisting of titanium dioxide or silicon dioxide and comprising from 1 to 5 monolayers.

公开(公告)号：HUT63348A

公开(公告)日：1993-08-30

申请号：HU9300382

申请日：1993-02-12

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  LOX EGBERT ,  OSTGATHE KLAUS

IPC: B01D53/94 ,  B01J21/04 ,  B01J23/10 ,  B01J23/40 ,  B01J23/62 ,  B01J23/56 ,  B01J23/63 ,  B01J23/64 ,  B01J23/89 ,  B01J32/00 ,  B01J33/00 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  F01N3/28

Abstract: The invention relates to a coating dispersion for producing catalyst-promoting coats on an inert, structure-reinforcing body. The solids of the dispersion are present in various grain size fractions and lead to a rougher coating surface having improved exchange between exhaust gas and catalyst surface and improved heating-up behaviour resulting therefrom.

公开(公告)号：ZA9100337B

公开(公告)日：1991-11-27

申请号：ZA9100337

申请日：1991-01-16

Applicant: DEGUSSA

Inventor： SCHMIDT FELIX ,  FELIX SCHMIDT ,  DOMESLE RAINER ,  RAINER DOMESLE ,  MERGNER BERND ,  BERND MERGNER

IPC: B01J23/63 ,  B01J23/56 ,  B01J37/00 ,  B01J37/02 ,  B01J

CPC classification number: B01J37/0217 ,  B01J37/0018 ,  B01J37/0219

公开(公告)号：BR9006184A

公开(公告)日：1991-09-24

申请号：BR9006184

申请日：1990-12-06

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  ENGLER BERND ,  KOBERSTEIN EDGAR ,  VOLKER HERBERT

IPC: F01N3/28 ,  B01D53/86 ,  B01D53/94 ,  B01J23/64 ,  B01J23/648 ,  B01J23/89 ,  B01J29/18 ,  B01J29/22 ,  B01J35/04 ,  B01J37/02 ,  F02B3/06 ,  B01J23/68

Abstract: An open-cell, monolithic catalyst for the purification of diesel-engine exhaust gas with a coating of finely divided inorganic oxides containing vanadium and platinum group metal as active components. The active components of the oxidic coating are added as water-soluble precursors which are then converted by means of tempering, preferably in an atmosphere of hydrogen, into the active component.

公开(公告)号：HU202425B

公开(公告)日：1991-03-28

申请号：HU563988

申请日：1988-10-28

Applicant: DEGUSSA

Inventor： KOBERSTEIN EDGAR ,  ENGLER BERND ,  DOMESLE RAINER ,  VOELKER HERBERT

IPC: B01D53/94 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J23/89 ,  F02B1/04 ,  B01D53/36 ,  B01J35/02

Abstract: The invention is a three-way catalyst of active aluminum oxide, palladium, platinum and cerium dioxide. If Al2O3 is present as bulk carrier, the catalyst contains 5-20% by weight CeO2 and if Al2O3 is present as a coating on a honeycombed, inert carrier, it contains 25-50% by weight CeO2.

公开(公告)号：HUT48486A

公开(公告)日：1989-06-28

申请号：HU564088

申请日：1988-10-28

Applicant: DEGUSSA

Inventor： KOBERSTEIN EDGAR ,  ENGLER BERND ,  DOMESLE RAINER ,  VOELKER HERBERT

IPC: B01D53/94 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J23/89 ,  B01J35/02 ,  B01D53/36

Abstract: The invention is a three-way catalyst of active aluminum oxide, palladium, rhodium and cerium dioxide. If Al2O3 is present as bulk carrier, the catalyst contains 5-20% by weight CeO2 and if Al2O3 is present as a coating on a honeycombed, inert carrier, it contains 25-50% by weight CeO2.