发明名称 |
Production method of ceramic catalyst body |
摘要 |
This invention provides a method for producing a ceramic catalyst body that can directly support a catalyst on a ceramic support without disposing a coating layer on the ceramic support. in the invention, a catalyst solution containing a catalyst component consisting of a negative complex ion resulting from a catalyst precursor is prepared, and a pH of the catalyst solution is adjusted in such a manner as to satisfy the relation E1 > E2 and E1 > 0 where E1 is a surface potential of a matrix phase consisting of a cordierite-W composite body relative to the pH of the catalyst solution and E2 is a surface potential of a dispersed phase consisting of compounds other than the cordierite-W composite body. After the ceramic support is brought into contact with the catalyst solution to support the catalyst component, heat-treatment is conducted to bond the matrix phase consisting of the cordierite-W composite body and the catalyst component to support the catalyst on the ceramic support. <IMAGE>
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申请公布号 |
EP1454672(A1) |
申请公布日期 |
2004.09.08 |
申请号 |
EP20040005363 |
申请日期 |
2004.03.05 |
申请人 |
DENSO CORPORATION |
发明人 |
KOIKE, KAZUHIKO;TANAKA, MASAKAZU;SUZAWA, TAKUMI;HASE, TOMOMI;NAKANISHI, TOMOHIKO |
分类号 |
F01N3/10;B01D53/86;B01D53/94;B01J23/30;B01J23/40;B01J23/652;B01J32/00;B01J35/04;B01J35/10;B01J37/02;C04B41/85;F01N3/28;(IPC1-7):B01J37/02 |
主分类号 |
F01N3/10 |
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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