发明授权
- 专利标题： Catalyst for purifying exhaust gas, process for production thereof, exhaust gas purifying filter, and exhaust gas purifying apparatus
- 专利标题（中）： 用于净化废气的催化剂，其制造方法，废气净化过滤器和废气净化装置
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申请号： US919275申请日： 1997-08-28
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公开(公告)号： US06110860A公开(公告)日： 2000-08-29
- 发明人: Masahiro Inoue , Tatsuro Miyazaki , Nobuyuki Tokubuchi , Masaaki Arita
- 申请人： Masahiro Inoue , Tatsuro Miyazaki , Nobuyuki Tokubuchi , Masaaki Arita
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX8-241749 19960912; JPX9-162231 19970619
- 主分类号： F01N13/08
- IPC分类号： F01N13/08 ; B01D53/86 ; B01D53/94 ; B01J27/053 ; B01J27/055 ; F01N3/02 ; F01N3/10 ; F01N3/28 ; B01J27/047
摘要：
A catalyst for exhaust gas purification characterized by high catalytic activity, heat resistance, and toxin resistance includes a metal oxide and at least one alkali metal sulfate or at least one alkaline earth metal sulfate. The process for producing the catalyst includes mixing the metal oxide with an aqueous solution of the sulfate, evaporating the mixture to dryness, and heat-treating the resultant mixed powder. An exhaust gas purifying apparatus includes an exhaust gas purifying filter having a high exhaust gas purification rate and an excellent durability. The filter includes a ceramic filter with a heat-resistant coating layer thereon for support of the catalyst.