发明名称 |
CATALYST FOR PURIFYING THE EXHAUST GASES OF INTERNAL COMBUSTION ENGINES AND METHOD FOR MAKING THE CATALYST |
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.
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申请公布号 |
US5179059(A) |
申请公布日期 |
1993.01.12 |
申请号 |
US19910658280 |
申请日期 |
1991.01.31 |
申请人 |
DEGUSSA AG |
发明人 |
DOMESLE, RAINER;ENGLER, BERND;SCHMIDT, FELIX;SCHUBERT, PETER;KOBERSTEIN, EDGAR |
分类号 |
B01J23/40;B01D53/86;B01D53/94;B01J23/56;B01J23/58;B01J23/63;B01J23/89;B01J37/02;F01N3/18;F02B1/04 |
主分类号 |
B01J23/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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