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    Catalyst for purification of exhaust gases and processes for its production and use
    43.
    发明授权
    Catalyst for purification of exhaust gases and processes for its production and use 失效
    用于净化废气的催化剂及其生产和使用的方法

    公开(公告)号：US4048098A

    公开(公告)日：1977-09-13

    申请号：US439174

    申请日：1974-02-04

    申请人： Edgar Koberstein ,  Eduard Lakatos

    发明人： Edgar Koberstein ,  Eduard Lakatos

    IPC分类号： B01D53/94 ,  B01J21/02 ,  B01J23/40 ,  B01J23/64 ,  B01J23/652 ,  B01J23/656 ,  B01J23/89 ,  B01J21/00 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/74

    CPC分类号： B01D53/945 ,  B01J23/40 ,  B01J23/652 ,  B01J23/89 ,  Y02T10/22

    摘要： A carrier catalyst comprises as the catalytically active component an intermetallic system of at least three metals, wherein at least one of said three metals is selected from the group consisting of (a) ruthenium, rhodium, palladium and platinum, and wherein at least one of said three metals is a base metal selected from the group consisting of (b) aluminum, titanium, chromium, manganese, cobalt and nickel, and further wherein said group (a) metals and said group (b) metals are in an atomic ratio of about 1:4 to 1:1, provided that, when said system contains platinum, rhodium and at least one of said base metals, the atomic ratio is 1:4 to 1:2.4. The catalyst can also contain aluminum.

    摘要翻译： 载体催化剂包含至少三种金属作为催化活性组分的金属间系统，其中所述三种金属中的至少一种选自（a）钌，铑，钯和铂，并且其中至少一种 所述三种金属是选自（b）铝，钛，铬，锰，钴和镍的贱金属，并且其中所述基团（a）金属和所述基团（b）金属的原子比为 约1：4至1：1，条件是当所述体系含有铂，铑和至少一种所述贱金属时，原子比为1:4至1:2.4。 催化剂也可以含有铝。

    Monolithic or honeycomb-type catalyst
    46.
    发明授权
    Monolithic or honeycomb-type catalyst 失效
    单片或蜂窝型催化剂

    公开(公告)号：US5043311A

    公开(公告)日：1991-08-27

    申请号：US510266

    申请日：1990-04-19

    申请人： Bernd Engler ,  Edgar Koberstein ,  Egbert Lox ,  Herbert Voelker

    发明人： Bernd Engler ,  Edgar Koberstein ,  Egbert Lox ,  Herbert Voelker

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28

    CPC分类号： B01D53/945 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0242 ,  F01N3/2803 ,  F01N2330/02 ,  F01N2330/04 ,  F01N2560/08 ,  Y02T10/22

    摘要： A monolithic or honeycomb-catalyst, in particular for purifying the exhaust gases of internal-combustion engines, composed of an inert ceramic or metallic support traversed by parallel flow channels, a layer disposed thereon and composed of catalysis-promoting metal oxide and a catalytically active component supported by the metal oxide, wherein the concentration of the catalysis-promoting metal oxide increases from the periphery to the central axis of the support. Alternatively, the catalysis-promoting metal oxide is essentially equally distributed between central axis and periphery of the support, but concentration of catalytically active component increases from the central axis to the periphery of the support.

    摘要翻译： 一种整体或蜂窝催化剂，特别是用于净化由平行流动通道穿过的惰性陶瓷或金属支撑体构成的内燃机废气，其上设置有由催化促进金属氧化物组成的催化活性物质 由金属氧化物负载的组分，其中催化促进金属氧化物的浓度从载体的周边增加到中心轴线。 或者，催化促进金属氧化物基本上均匀地分布在载体的中心轴和周边之间，但是催化活性组分的浓度从载体的中心轴向周边增加。