Exhaust gas cleaning catalyst and process for production thereof
    2.
    发明授权
    Exhaust gas cleaning catalyst and process for production thereof 失效
    废气净化催化剂及其生产方法

    公开(公告)号:US4749671A

    公开(公告)日:1988-06-07

    申请号:US880827

    申请日:1986-07-01

    摘要: An exhaust gas cleaning catalyst composed of a refractory three-dimensional structure and a catalytically active substance supported thereon. That surface or part of the catalyst which makes contact with an exhaust gas is formed of numerous irregularly arranged protrusions composed of a refractory inorganic powder having a particle diameter of 5 to 300 micrometers or a mixture of it with refractory inorganic fibers and the catalytically active substance supported on the protrusions. The catalyst can be produced, for example, by preparing an aqueous slurry from the refractory inorganic powder having a particle diameter of 5 to 300 micrometers or a mixture of it with the refractory inorganic fibers and a suitable dispersant, forming numerous irregularly arranged protrusions on that surface or part of a refractory three-dimensional structure which makes contact with an exhaust gas by using the resulting slurry, drying the structure optionally followed by calcination, depositing the catalytically active substance, and drying and calcining the resulting structure.

    摘要翻译: 一种由耐火三维结构和负载在其上的催化活性物质组成的废气净化催化剂。 与废气接触的催化剂的表面或部分由许多不规则排列的突起形成,该突起由粒径为5至300微米的耐火无机粉末或其与耐火无机纤维的混合物和催化活性物质 支撑在突起上。 该催化剂可以例如通过从粒径为5至300微米的难熔无机粉末或其难熔无机纤维和合适的分散剂的混合物制备含水浆料,从而形成许多不规则排列的突起 通过使用所得到的浆料与废气接触的表面或部分耐火三维结构,任选地随后煅烧结构干燥,沉积催化活性物质,并干燥和煅烧所得结构。

    Catalysts for purifying exhaust and waste gases
    3.
    发明授权
    Catalysts for purifying exhaust and waste gases 失效
    用于净化废气和废气的催化剂

    公开(公告)号:US4018706A

    公开(公告)日:1977-04-19

    申请号:US707086

    申请日:1976-07-20

    摘要: A catalyst for purifying exhaust and waste gases comprisingA. a support substrate comprising 2 to 100% by weight of an oxide complex of titanium and phosphorus containing titanium and phosphrus in such a proportion that the molar ratio of TiO.sub.2 to P.sub.2 O.sub.5 is from 5.0 to 0.5 and 98 to 0% by weight of aluminum oxide, andB. supported on said substrate as a catalytic substance, 2 to 300 parts by weight, calculated as metal oxide per 100 parts by weight of the support substrate (A), of at least one heavy metal selected from the group consisting of Ni, Cu, Cr, Fe, Co, Mn, Bi, V, W, Mo, Sn, Zn, Zr, Pb, Sb, Ti, Ta, Cd and Nb, or 0.01 to 1.0 part by weight, calculated as metal per 100 parts by weight of the support substrate (A), of at least one noble metal selected from the group consisting of Pt, Pd, Rh, Ir, Os and Ru.

    摘要翻译: 一种用于净化废气和废气的催化剂,包括A.支撑基材,其包含2至100重量%的钛和磷的钛和磷的氧化物配合物,其中TiO 2与P 2 O 5的摩尔比为5.0至0.5 和98〜0重量%的氧化铝,负载在作为催化剂物质的基材上的B 2〜300重量份,作为金属氧化物,相对于100重量份的载体基材(A)计算为至少 选自Ni,Cu,Cr,Fe,Co,Mn,Bi,V,W,Mo,Sn,Zn,Zr,Pb,Sb,Ti,Ta,Cd和Nb中的一种重金属,或0.01〜 1.0重量份,以每100重量份载体基材(A)为金属计算的至少一种选自Pt,Pd,Rh,Ir,Os和Ru的贵金属。

    Method for the production of a platinum catalyst used for purification
of exhaust and waste gases
    4.
    发明授权
    Method for the production of a platinum catalyst used for purification of exhaust and waste gases 失效
    生产用于净化废气和废气的铂催化剂的方法

    公开(公告)号:US3953369A

    公开(公告)日:1976-04-27

    申请号:US457209

    申请日:1974-04-02

    摘要: A method for the production of a platinum catalyst used for purification of exhaust and waste gases which comprises supporting platinum either alone or in combination of other noble metals on to a porous inorganic refractory support using an aqueous medium containing dinitrodiammineplatinum and, optionally, other noble metals or their compounds in the presence of a poly(oxyethylene) type nonionic surface active agent of an average molecular weight of at least 500 and subjecting the so treated support to activation by calcining in an oxidative atmosphere or by reducing in a reductive atmosphere.

    摘要翻译: 一种生产用于净化废气和废气的铂催化剂的方法,其包括使用含有二硝基二氨基铂的水性介质和任选的其它贵金属将铂单独或组合使用其他贵金属组合在多孔无机耐火载体上 或其化合物在平均分子量至少为500的聚(氧乙烯)型非离子表面活性剂存在下进行处理,并使经处理的载体在氧化气氛中煅烧或通过在还原气氛中还原而进行活化。