Method of manufacturing catalyst
    3.
    发明授权
    Method of manufacturing catalyst 失效
    制造催化剂的方法

    公开(公告)号:US06171999B2

    公开(公告)日:2001-01-09

    申请号:US09243489

    申请日:1999-02-03

    IPC分类号: B01J2310

    摘要: In the manufacturing process of the exhaust gas purifying catalyst (3), rhodium is supported by the base material using the rhodium carbonyl cluster solution in which rhodium carbonyl cluster is dissolved into methanol in the step of forming the upper catalytic layer (6) including rhodium and platinum as catalytic metals. By this, the dispersibility of rhodium in the base material is highly raised, and further rhodium is effectively restrained from being oxidized during the manufacturing process of the catalyst (3). Thus, according to the exhaust gas purifying catalyst (3) particularly, the purifying performance of NOx at both of lower exhaust gas temperature and higher exhaust gas temperature is highly improved.

    摘要翻译: 在废气净化催化剂(3)的制造方法中,在形成上述催化剂层(6)的步骤中,使用羰基铑簇溶解在甲醇中的铑羰基簇溶液将铑负载在基材上, 和铂作为催化金属。 由此,铑在基材中的分散性高度提高,在催化剂(3)的制造工序中,有效地抑制铑的氧化。 因此,特别地,根据废气净化催化剂(3),在排气温度和废气温度较低时,NOx的净化性能得到了很大的提高。

    Catalyst for exhaust gas cleaning
    6.
    发明授权
    Catalyst for exhaust gas cleaning 失效
    催化剂用于排气净化

    公开(公告)号:US5318934A

    公开(公告)日:1994-06-07

    申请号:US996222

    申请日:1992-12-23

    摘要: A catalyst for cleaning an exhaust gas includes a metal containing silicate containing Al and a metal M constituting a crystalline structure which is selected from a group consisting of Ga, In, B, Mn, Bi, Sc Y, V and Ta, a transition metal or a precious metal being carried in said metal containing silicate. The catalytic active range can be expanded.

    摘要翻译: 用于清洁废气的催化剂包括含有Al的含金属硅酸盐和构成晶体结构的金属M,其选自由Ga,In,B,Mn,Bi,Sc Y,V和Ta组成的组,过渡金属 或在所述含金属硅酸盐中携带的贵金属。 催化活性范围可以扩大。

    Exhaust gas purification catalyst
    7.
    发明申请
    Exhaust gas purification catalyst 审中-公开
    废气净化催化剂

    公开(公告)号:US20060223698A1

    公开(公告)日:2006-10-05

    申请号:US11369247

    申请日:2006-03-07

    IPC分类号: B01J23/10

    摘要: Catalytic converter for exhaust gas purification comprises a carrier, an oxide layer positioned above the carrier and comprising a compound oxide of cerium (Ce) and magnesium (Mg) with its molar ratio of Mg/(Ce+Mg), and a catalytic metal loaded on the oxide layer. By comprising the compound oxide of cerium and magnesium in the oxide layer, higher purification performance or lower light-off temperature can be obtained under the lean exhaust gas condition during the engine startup.

    摘要翻译: 用于排气净化的催化转化器包括载体,位于载体上方的氧化物层,其包含铈(Ce)和镁(Mg)的复合氧化物,其摩尔比为Mg /(Ce + Mg),并且催化金属负载 在氧化层上。 通过在氧化物层中包含铈和镁的复合氧化物,在发动机起动期间在稀薄排气条件下可以获得更高的净化性能或更低的起燃温度。