发明授权
- 专利标题： Catalyst for purifying the exhaust gases of internal combustion engines and method for making the catalyst
- 专利标题（中）： 用于净化内燃机排气的催化剂和制备催化剂的方法
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申请号： US658280申请日： 1991-01-31
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公开(公告)号： US5179059A公开(公告)日： 1993-01-12
- 发明人: Rainer Domesle , Bernd Engler , Felix Schmidt , Peter Schubert , Edgar Koberstein
- 申请人： Rainer Domesle , Bernd Engler , Felix Schmidt , Peter Schubert , Edgar Koberstein
- 申请人地址： DEX Frankfurt am Main
- 专利权人： Degussa AG
- 当前专利权人： Degussa AG
- 当前专利权人地址： DEX Frankfurt am Main
- 优先权： DEX4003939 19900209
- 主分类号： B01J23/40
- IPC分类号： B01J23/40 ; B01D53/86 ; B01D53/94 ; B01J23/56 ; B01J23/58 ; B01J23/63 ; B01J23/89 ; B01J37/02 ; F01N3/18 ; F02B1/04
摘要：
A catalyst for purifying the exhaust gases of internal combustion engines with improved light-off behavior and improved durability with reduced specific noble-metal content is disclosed which uses active aluminum oxide provided with customary promoters as carrier and platinum and/or palladium and rhodium in customary amounts as noble metals. In addition, it contains one or more base metals in amounts up to 5 times the mass of the total noble metal which are brought into the immediate vicinity of the rhodium by means of a special manufacturing technique.
公开/授权文献
- US5672267A Flotation column with constant feed arrangement 公开/授权日：1997-09-30
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