公开(公告)号：BR8206060A

公开(公告)日：1983-09-13

申请号：BR8206060

申请日：1982-10-18

Applicant: DEGUSSA

Inventor： DOMESLE REINER ,  VOLKER HERBERT ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER

IPC: F01N3/02 ,  B01D53/86 ,  B01D53/94 ,  B01J23/68 ,  B01J35/04 ,  B01J35/06 ,  F01N3/035 ,  F02B1/04 ,  F02B3/06 ,  C10L1/12

Abstract: A process and catalyst is disclosed for the reduction of the ignition temperature of diesel soot filtered out of the exhaust fumes of diesel engines by passing the exhaust stream through a filter element. The filter element is a temperature resistant inert support onto which is deposited a catalytically effective amount of silver vanadate or a mixture of the temperature resistant carrier material and a catalytically effective amount of silver vanadate.

公开(公告)号：FR2470245A1

公开(公告)日：1981-05-29

申请号：FR8022716

申请日：1980-10-23

Applicant: DEGUSSA

Inventor： BOZON ALFRED ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER ,  VOLKER HERBERT

IPC: B23K9/20 ,  B23K11/00 ,  B23K11/10 ,  F01N3/10 ,  F01N3/28

Abstract: The invention relates to a method for the manufacture of a metallic matrix which is "monolithic", is coated with a catalysis promoting metal oxide and is disposed in a metal casing, in which the matrix is composed of alternately disposed plain and corrugated or folded metal sheets or plates, in which these sheets are stacked in a pile or are wound into a spiral. The method comprises a special resistance welding on the end faces of the matrix and arc welding of the side face of the matrix to the side of the casing, on which the metal oxide is applied.

公开(公告)号：CS244652B2

公开(公告)日：1986-08-14

申请号：CS617076

申请日：1976-09-23

Applicant: DEGUSSA

Inventor： PLETKA HANS-DIETER ,  MICHEL RUDOLF

IPC: C07F7/08 ,  C07F7/18 ,  C08K5/548 ,  C08K5/549

公开(公告)号：CA1192893A

公开(公告)日：1985-09-03

申请号：CA413970

申请日：1982-10-20

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  VOLKER HERBERT ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER

IPC: F01N3/02 ,  B01D53/86 ,  B01D53/94 ,  B01J23/68 ,  B01J35/04 ,  B01J35/06 ,  F01N3/035 ,  F02B1/04 ,  F02B3/06 ,  B01J23/48 ,  B01J23/66

Abstract: The present invention provides a catalyst for reducing the ignition temperature of diesel black filtered out of the exhaust gas of diesel engines. The active substance of this catalyst is silver vanadate.

公开(公告)号：CA1150355A

公开(公告)日：1983-07-19

申请号：CA356396

申请日：1980-07-17

Applicant: DEGUSSA

Inventor： BOZON ALFRED ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER ,  VOELKER HERBERT

IPC: G01N27/12 ,  B01D53/86 ,  F02B77/08 ,  F02D33/00 ,  F02D35/00 ,  G01N20060101 ,  G01N25/22 ,  G01N27/26 ,  G01N27/30 ,  G01N27/403 ,  G01N27/407 ,  G01N27/409 ,  G01N27/413 ,  G01N27/417

Abstract: The present invention is an improved lambda probe for measuring the oxygen content in the exhaust gas of internal combustion engines. The measuring sensor in said probe is provided with a catalyst-coated sheathing permeable to gas. In the socalled fat exhaust gas the probe yields a clearly marked signal, by means of which the fuel-air mixture fed to the internal combustion engine can be adjusted more precisely.

公开(公告)号：FR2465511A1

公开(公告)日：1981-03-27

申请号：FR8020040

申请日：1980-09-17

Applicant: DEGUSSA

Inventor： BOZON ALFRED ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER ,  VOLKER HERBERT

IPC: B01D53/86 ,  B01D46/52 ,  B01J35/04 ,  F01N3/022 ,  F01N3/28 ,  B01D46/10 ,  F01N3/08

Abstract: A mechanically stable screen cloth construction is disclosed which is suitable for a catalyst support.

公开(公告)号：MX167329B

公开(公告)日：1993-03-17

申请号：MX788682

申请日：1982-10-19

Applicant: DEGUSSA

Inventor： PLETKA HANS-DIETER ,  DOMESLE RAINER ,  VOELKER HERBERT ,  KOBERSTEIN EDGAR

IPC: F01N3/02 ,  B01D53/86 ,  B01D53/94 ,  B01J23/68 ,  B01J35/04 ,  B01J35/06 ,  F01N3/035 ,  F02B1/04 ,  F02B3/06 ,  B01J23/22 ,  B01J23/50

Abstract: A process and catalyst is disclosed for the reduction of the ignition temperature of diesel soot filtered out of the exhaust fumes of diesel engines by passing the exhaust stream through a filter element. The filter element is a temperature resistant inert support onto which is deposited a catalytically effective amount of silver vanadate or a mixture of the temperature resistant carrier material and a catalytically effective amount of silver vanadate.

公开(公告)号：DD155389A5

公开(公告)日：1982-06-09

申请号：DD22620180

申请日：1980-12-17

Applicant: DEGUSSA

Inventor： BOZOM ALFRED ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER ,  VOELKER HERBERT

IPC: B01D53/86 ,  B01D46/00 ,  B01D46/24 ,  B01J35/04 ,  F01N3/022 ,  F01N3/027 ,  F01N3/035 ,  F01N3/20 ,  F01N3/28 ,  F02B3/06 ,  B01J20/00

公开(公告)号：CA1125265A

公开(公告)日：1982-06-08

申请号：CA346271

申请日：1980-02-22

Applicant: DEGUSSA

Inventor： BOZON ALFRED ,  KOBERSTEIN EDGAR ,  PLETKA HANS-DIETER ,  VOELKER HERBERT ,  LAKATOS EDUARD

IPC: B01D53/94 ,  B01J23/89 ,  B01J37/02 ,  F02B1/04 ,  B01D53/36 ,  F01N3/10

Abstract: The present invention relates to a three-way catalyst for the purification of exhaust gases from automobiles. Said catalyst comprises as an active substance platinum and rhodium and, when required, base metal(s) in specific ratios by weight between the two noble metals and in a specific atomic ratio between noble metal and base metal, said active substance being deposited on specific amounts of active aluminium oxide containing CeO2, ZrO2 and Fe2O3 and the catalyst being obtained by active aluminium oxide, stabilized with alkaline earth metal when required, is impregnated with a solution of cerium, zirconium and iron salt, whereupon it is tempered in air at 500 to 700.degree.C, and then on applying an impregnating agent comprising salts of the active substance components, it is treated in a current of hydrogen-containing gas at temperatures below 650.degree.C.

公开(公告)号：CS212279B2

公开(公告)日：1982-03-26

申请号：CS184378

申请日：1978-03-22

Applicant: DEGUSSA

Inventor： BUDER WOLFGANG ,  PLETKA HANS-DIETER ,  MICHEL RUDOLF ,  SCHWARZ RUDOLF ,  DUESING GERHARD

IPC: C07F7/18 ,  C08K5/548 ,  C08K5/549