发明授权
US07585811B2 Catalyst powder, exhaust gas purifying catalyst, and method of producing the catalyst powder
失效
催化剂粉末，废气净化催化剂，以及催化剂粉末的制造方法
- 专利标题： Catalyst powder, exhaust gas purifying catalyst, and method of producing the catalyst powder
- 专利标题（中）： 催化剂粉末，废气净化催化剂，以及催化剂粉末的制造方法
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申请号： US10589890申请日： 2005-02-10
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公开(公告)号： US07585811B2公开(公告)日： 2009-09-08
- 发明人: Masanori Nakamura , Katsuo Suga , Toru Sekiba , Hironori Wakamatsu , Kazuyuki Shiratori , Hirofumi Yasuda
- 申请人： Masanori Nakamura , Katsuo Suga , Toru Sekiba , Hironori Wakamatsu , Kazuyuki Shiratori , Hirofumi Yasuda
- 申请人地址： JP Yokohama-shi
- 专利权人： Nissan Motor Co., Ltd.
- 当前专利权人： Nissan Motor Co., Ltd.
- 当前专利权人地址： JP Yokohama-shi
- 代理机构： Foley & Lardner LLP
- 优先权： JP2004-048370 20040224
- 国际申请： PCT/JP2005/002525 WO 20050210
- 国际公布： WO2005/079982 WO 20050901
- 主分类号： B01J23/00
- IPC分类号： B01J23/00 ; B01J21/00 ; B01J20/00
摘要：
A method of producing catalyst powder of the present invention has a step of precipitating a noble metal particle (2) and a porous carrier (1) in a reversed micelle substantially simultaneously; and a step of precipitating a transition metal particle (3) in the reversed micelle. By this method, it is possible to obtain catalyst powder which restricts an aggregation of the noble metal particles even at a high temperature and is excellent in a catalytic activity.
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