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 E 1 >E 2 and E 1 >0 where E 1 is a surface potential of a matrix phase consisting of a cordierite-W composite body relative to the pH of the catalyst solution and E 2 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.
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申请公布号 |
US7084091(B2) |
申请公布日期 |
2006.08.01 |
申请号 |
US20040793953 |
申请日期 |
2004.03.08 |
申请人 |
NIPPON SOKEN, INC. |
发明人 |
KOIKE KAZUHIKO;TANAKA MASAKAZU;SUZAWA TAKUMI;HASE TOMOMI;NAKANISHI TOMOHIKO |
分类号 |
B01J23/42;F01N3/10;B01D53/86;B01D53/94;B01J20/00;B01J23/00;B01J23/08;B01J23/30;B01J23/44;B01J23/652;B01J32/00;B01J35/04;B01J35/10;B01J37/02;C04B41/85;F01N3/28 |
主分类号 |
B01J23/42 |
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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