公开(公告)号：RO111164B1

公开(公告)日：1996-07-30

申请号：RO9300290

申请日：1993-03-02

Applicant: DEGUSSA

Inventor： JURGEN LEYRER ,  EGBERT LOX ,  BERND ENGLER

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  B01J29/06 ,  B01J29/24 ,  B01J35/04 ,  B01J37/02 ,  F02B1/04 ,  B01J23/46 ,  B01J23/42

Abstract: The invention relates to a catalyst for decreasing nitrogen oxide in the lean exhaust gas of automobile engines. On a structurally reinforcing body, it contains a first catalytic coating of a high surface area aluminium oxide and/or cerium oxide impregnated with a mixture of iridium and platinum as catalytically active noble metal components. On the first layer is applied a second catalytic coating of a zeolite which contains copper and/or iron and is of the mordenite type.

公开(公告)号：ZA9102800B

公开(公告)日：1992-01-29

申请号：ZA9102800

申请日：1991-04-15

Applicant: DEGUSSA

Inventor： BLUMRICH STEPHAN ,  STEPHAN BLUMRICH ,  HONNEN WOLFGANG ,  WOLFGANG HONNEN ,  ENGLER BERND ,  BERND ENGLER ,  KOBERSTEIN EDGAR ,  EDGAR KOBERSTEIN

IPC: B01J21/06 ,  B01D53/86 ,  B01J23/22 ,  B01J27/053 ,  B01J37/04 ,  C01B17/48 ,  C01B17/79 ,  B01D ,  B01J ,  B28B ,  C04B

CPC classification number: C01B17/79 ,  B01D53/8609 ,  B01J23/22

公开(公告)号：ZA9100899B

公开(公告)日：1991-11-27

申请号：ZA9100899

申请日：1991-02-06

Applicant: DEGUSSA

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

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46 ,  C01G ,  B01J ,  C04B

CPC classification number: B01J21/063 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1052 ,  B01J35/1061 ,  B01J37/0009 ,  C04B35/46

公开(公告)号：ZA9002062B

公开(公告)日：1990-12-28

申请号：ZA9002062

申请日：1990-03-16

Applicant: DEGUSSA

Inventor： ENGLER BERND ,  BERND ENGLER ,  KOBERSTEIN EDGAR ,  EDGAR KOBERSTEIN ,  LOX EGBERT ,  EGBERT LOX ,  VOELKER HERBERT ,  HERBERT VOELKER

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28 ,  B01J ,  B01D

CPC classification number: B01D53/945 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0242 ,  F01N3/2803 ,  F01N2330/02 ,  F01N2330/04 ,  F01N2560/08 ,  Y02T10/22

公开(公告)号：ZA8905426B

公开(公告)日：1990-04-25

申请号：ZA8905426

申请日：1989-07-17

Applicant: DEGUSSA

Inventor： ENGLER BERND ,  BERND ENGLER ,  KOBERSTEIN EDGAR ,  EDGAR KOBERSTEIN ,  LOX EGBERT ,  EGBERT LOX ,  VOELKER HERBERT ,  HERBERT VOELKER

IPC: B01D53/86 ,  B01J23/63 ,  B01J23/652 ,  F02B1/04 ,  B01J ,  B01D ,  F01N

CPC classification number: B01J23/6525 ,  B01D53/8668 ,  B01J23/63 ,  F02B1/04

公开(公告)号：AU3302593A

公开(公告)日：1993-08-19

申请号：AU3302593

申请日：1993-02-12

Applicant: DEGUSSA AKTIENGESELLSCHAFT

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

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

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：ZA922218B

公开(公告)日：1992-12-30

申请号：ZA922218

申请日：1992-03-26

Applicant: DEGUSSA

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

IPC: B01D53/52 ,  B01D53/86 ,  B01D53/94 ,  B01J23/755 ,  F01N ,  B01D

Abstract: Process to prevent hydrogen sulphide emissions during the catalytic purification of automobile exhaust gases, characterised in that the exhaust gases leaving the catalytic converter are passed through a gas-permeable body made of metallic nickel or having a nickel coating.

公开(公告)号：ZA91145B

公开(公告)日：1991-11-27

申请号：ZA91145

申请日：1991-01-08

Applicant: DEGUSSA

Inventor： DOMESLE RAINER ,  RAINER DOMESLE ,  ENGLER BERND ,  BERND ENGLER ,  SCHMIDT FELIX ,  FELIX SCHMIDT ,  SCHUBERT PETER ,  PETER SCHUBERT ,  KOBERSTEIN EDGAR ,  EDGAR KOBERSTEIN

IPC: B01J23/40 ,  B01D53/86 ,  B01D53/94 ,  B01J23/56 ,  B01J23/58 ,  B01J23/63 ,  B01J23/89 ,  B01J37/02 ,  F01N3/18 ,  F02B1/04 ,  B01J ,  F01N

Abstract: Catalyst for purifying i.c. engine exhaust gas has an Al2O3 support of the transition series, which contains 3-70 (wt.)% CeO2, 0-20% La2O3, opt. mixed with other rare earth metal oxides, 1-20% ZrO2, 0-10% Fe2O3 and 0-20% NiO as promoter, and has an active phase of 0.02-3% Pt and/or Pd and Rh, with a ratio of Pt and/or Pd and Rh of 1:2 to 15:1, pref. 1:1 to 3:1 and opt. a wt. ratio of Pt and Pd of 10:1 to 1:5. The opt. lattice-stabilised support is impregnated with a soln. of a promoter cpd. and/or mixed with a suspension of oxides, hydroxides or carbonates of the promoter elements and heated in air at 300-900 deg.C, then impregnated with a soln. of the noble metal cpds.,dried and opt. activated in a gas contg. H2, opt. under hydrothermal conditions, at 250-1050 deg.C. The catalyst contains base metal(s), i.e. Li, K, Rb, Mg, Ca, Ba, La, Ce, Pr, Nd, Sm, Fe, Co and/or Ni, in an amt. up to 5 times the total amt. of noble metal; and is prepd. by impregnating the support contg. promoter with a soln. (A) of Pt and/or Pd cpd(s). corresp. to at least 30% of the total amt. of Pt and/or Pd, drying and activation, then impregnating with a soln. (B) contg. Rh cpd. opt. the rest of the Pt and/or Pd cpd. and base metal cpd(s)., followed by drying and activation.

公开(公告)号：ZA9000371B

公开(公告)日：1990-10-31

申请号：ZA9000371

申请日：1990-01-18

Applicant: DEGUSSA

Inventor： KOBERSTEIN EDGAR ,  EDGAR KOBERSTEIN ,  ENGLER BERND ,  BERND ENGLER ,  DOMESLE RAINER ,  RAINER DOMESLE ,  SCHUBERT PETER ,  PETER SCHUBERT

IPC: F01N3/28 ,  B01D53/94 ,  B01J23/10 ,  B01J23/56 ,  B01J23/63 ,  B01J ,  B01D

CPC classification number: B01D53/945 ,  B01J23/10 ,  B01J23/63 ,  Y02A50/2324 ,  Y02T10/22

Abstract: The invention relates to a support material for catalysts containing a platinum group metal for motor vehicle exhaust gas purification, the catalysts having a reduced tendency to emit H2S. The support material consists of a heat-treated, spray-dried combination of aluminium oxide and cerium oxide.

公开(公告)号：BR9304122A

公开(公告)日：1994-04-19

申请号：BR9304122

申请日：1993-10-04

Applicant: DEGUSSA

Inventor： RAINER DOMESLE ,  BERND ENGLER ,  EGBERT LOX

IPC: B01D53/86 ,  B01D53/94 ,  B01J35/04 ,  B01J37/00 ,  B01J37/02 ,  B21D47/00 ,  F01N3/028 ,  F01N3/28 ,  B01D53/36 ,  B23K31/02

Abstract: Monolithic metal-supported catalysts having a catalytically-coated matrix of a plurality of sheet metal stacks, interwoven with each other, of corrugated, or alternately corrugated and smooth, metal strips, the free ends of which are jointed to an enclosing casing tube of any desired cross-section, can be highly economically produced with excellent thickness uniformity of the layers of the catalytic coating if the sheet metal stacks required for the metal-supported catalyst are assembled from previously coated metal strips cut to length and interwoven with each other to form the matrix, the matrix is then inserted into the casing tube and the free ends of the metal strips are attached to the casing tube by welding.