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公开(公告)号：DE4426973C1
公开(公告)日：1996-03-28
申请号：DE4426973
申请日：1994-07-29
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
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.
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公开(公告)号：DE4240863C2
公开(公告)日：1995-05-24
申请号：DE4240863
申请日：1992-12-04
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , LANSINK-ROTGERINK HANS DR
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公开(公告)号：DE58908501D1
公开(公告)日：1994-11-17
申请号：DE58908501
申请日：1989-12-09
Applicant: DEGUSSA
Inventor： BAACKE MICHAEL DR , BRAND REINHOLD DR , ENGLER BERND H DR , KISS AKOS DR , KLEINE-MOELLHOFF PETER , KLEINSCHMIT PETER DR , KOBERSTEIN EDGAR DR , SIRAY MUSTAFA DR
Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.
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公开(公告)号：AT112697T
公开(公告)日：1994-10-15
申请号：AT89122738
申请日：1989-12-09
Applicant: DEGUSSA
Inventor： BAACKE MICHAEL DR , BRAND REINHOLD DR , ENGLER BERND H DR , KISS AKOS DR , KLEINE-MOELLHOFF PETER , KLEINSCHMIT PETER DR , KOBERSTEIN EDGAR DR , SIRAY MUSTAFA DR
Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.
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Patent Agency Ranking
公开(公告)号：DK0385164T3
公开(公告)日：1994-02-28
申请号：DK90102664
申请日：1990-02-12
Applicant: DEGUSSA
Inventor： KOBERSTEIN EDGAR DR , HONNEN WOLFGANG DR , BRAND REINHOLD DR , ENGLER BERND H 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
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.
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公开(公告)号：AT95443T
公开(公告)日：1993-10-15
申请号：AT90102664
申请日：1990-02-12
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , ENGLER BERND H DR , HONNEN WOLFGANG DR , KOBERSTEIN EDGAR DR , OHMER JOHANNES DR
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公开(公告)号：BR9101571A
公开(公告)日：1991-12-10
申请号：BR9101571
申请日：1991-04-18
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , ENGLER BERND DR , FOERSTER MARTIN DR , HARTMANN WERNER DR , KLEINSCHMIT PETER DR , KOBERSTEIN EDGAR DR , OHMER JOHANNES DR , SCHWARZ RUDOLF DR
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.
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48.发明专利
公开(公告)号：GR3000389T3
公开(公告)日：1991-06-07
申请号：GR900400142
申请日：1990-03-15
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , ENGLER BERND DR , KLEINE-MOLLHOFF PETER , KOBERSTEIN EDGAR DR , VOELKER HERBERT
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公开(公告)号：AT41204T
公开(公告)日：1989-03-15
申请号：AT87100966
申请日：1987-01-23
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , ENGLER BERND DR , KLEINE-MOELLHOFF PETER , KOBERSTEIN EDGAR DR
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