EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PRODUCING SAME
    3.
    发明申请
    EXHAUST GAS PURIFYING CATALYST AND METHOD FOR PRODUCING SAME 有权
    排气净化催化剂及其生产方法

    公开(公告)号:US20140336042A1

    公开(公告)日:2014-11-13

    申请号:US14343243

    申请日:2012-12-18

    IPC分类号: B01J27/185

    摘要: An exhaust gas purifying catalyst, which is obtained by having at least one platinum group metal selected from the group consisting of Pt, Rh, and Pd supported on a calcined aluminum phosphate body. The calcined aluminum phosphate body has a tridymite crystal structure and the ratio of the cumulative pore distribution of pores having a size of 10 nm or less to the cumulative pore distribution of pores having a size of 300 nm or less is 20% or more in the calcined aluminum phosphate body. A method for producing an exhaust gas purifying catalyst including calcining aluminum phosphate, which has been obtained from an aqueous solution that is controlled to have a pH within a predetermined range, at a predetermined temperature for a predetermined period of time, thereby obtaining a calcined aluminum phosphate body; and having at least one platinum group metal selected from the group consisting of Pt, Rh, and Pd supported on the calcined aluminum phosphate body.

    摘要翻译: 一种废气净化催化剂,其通过在煅烧的磷酸铝体上具有选自Pt,Rh和Pd中的至少一种铂族金属而获得。 煅烧的磷酸铝体具有鳞石英晶体结构,并且尺寸为10nm以下的孔的累积孔分布与尺寸为300nm以下的孔的累积孔分布的比例为20%以上 煅烧磷酸铝体。 一种废气净化催化剂的制造方法,其特征在于,将预定温度下的pH控制在规定范围内的水溶液中煅烧磷酸铝预定时间,得到煅烧铝 磷酸盐体; 并且具有选自负载在煅烧的磷酸铝体上的Pt,Rh和Pd中的至少一种铂族金属。