发明授权
- 专利标题： Process for purifying exhaust gases
- 专利标题（中）： 废气净化工艺
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申请号： US544260申请日： 1995-10-17
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公开(公告)号： US5911960A公开(公告)日： 1999-06-15
- 发明人: Naoto Miyoshi , Shinichi Matsumoto , Tsuneyuki Tanizawa , Satoshi Iguchi , Toshiaki Tanaka , Shinichi Takeshima , Takaaki Kanazawa , Takahiro Hayashi , Motohisa Saiki , Kazuhiko Dohmae , Kiyoshi Yamazaki , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
- 申请人： Naoto Miyoshi , Shinichi Matsumoto , Tsuneyuki Tanizawa , Satoshi Iguchi , Toshiaki Tanaka , Shinichi Takeshima , Takaaki Kanazawa , Takahiro Hayashi , Motohisa Saiki , Kazuhiko Dohmae , Kiyoshi Yamazaki , Tadashi Suzuki , Koichi Kasahara , Syuji Tateishi
- 申请人地址： JPX Aichi-ken JPX Aichi-ken JPX Shizuoka-ken
- 专利权人： Toyota Jidosha Kabushiki Kaisha,Kabushiki Kaisha Toyota Chuo Kenkyusho,Cataler Industrial Co., Ltd.
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha,Kabushiki Kaisha Toyota Chuo Kenkyusho,Cataler Industrial Co., Ltd.
- 当前专利权人地址： JPX Aichi-ken JPX Aichi-ken JPX Shizuoka-ken
- 优先权： JPX5-002491 19930111; JPX5-206664 19930820; JPX5-238461 19930924
- 主分类号： B01D53/94
- IPC分类号： B01D53/94 ; B01J23/58 ; B01J23/63 ; B01J23/652 ; B01J23/656 ; B01J23/89 ; B01J37/02 ; B01D53/60
摘要：
A catalyst for purifying exhaust gases includes a porous support, at least one catalyst ingredient selected from Pt and Pd, and additional ingredients including (1) at least two rare-earth elements including La, (2) at least one rare-earth element including La and at least one transition element selected from Fe, Ni, Co and Mn, (3) at least two alkali metals, (4) at least one alkali metal and at least one rare-earth element including La, (5) at least one alkali metal and at least one transition element selected from Fe, Ni, Co and Mn, (6) at least two alkaline-earth metals, (7) at least one alkaline-earth metal and at least one rare-earth element including La, or (8) Ba, Li, La, Ce and Zr. A process for purifying an exhaust gas, by contacting the catalyst with an exhaust gas, is also provided.