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A manufacturing method of a particulate filter and a catalytic filter obtained thereby. 发明申请

2023-04-03 1220 165K 0

专利信息

申请日期 2025-07-12 申请号 JP2007531791
公开(公告)号 JP2008513195A 公开(公告)日 2008-05-01
公开国别 JP 申请人省市代码 全国
申请人 RHONE POULENC CHIMIE
简介 The invention relates to a method of producing a catalysed particulate filter. The invention is characterised in that, in order to lower the particulate oxidation temperature, the filter is provided with a cerium oxide, a zirconium oxide or a cerium/zirconium mixed oxide which can also comprise at least one rare earth oxide other than cerium. The porosity of said oxide or mixed oxide is such that at least 80% of the pore volume comprises pores having a diameter of least 20 nm.


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