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    Process for the preparation of a pollution control catalyst for internal combustion engine exhaust system/catalytic converter
    2.
    发明授权
    Process for the preparation of a pollution control catalyst for internal combustion engine exhaust system/catalytic converter 失效
    内燃机排气系统/催化转化器污染控制催化剂的制备工艺

    公开(公告)号：US4581343A

    公开(公告)日：1986-04-08

    申请号：US610498

    申请日：1984-05-15

    申请人： Gilbert Blanchard ,  Jean-Pierre Brunelle ,  Richard Doziere ,  Emmanuel Goldenberg ,  Michel Prigent

    发明人： Gilbert Blanchard ,  Jean-Pierre Brunelle ,  Richard Doziere ,  Emmanuel Goldenberg ,  Michel Prigent

    IPC分类号： B01D53/86 ,  B01D53/94 ,  B01J23/56 ,  B01J23/63 ,  B01J37/16 ,  B01J37/18 ,  B01J23/10 ,  B01J23/62 ,  B01J23/64 ,  B01J23/70

    CPC分类号： B01D53/945 ,  B01J23/63 ,  B01J37/16 ,  Y02T10/22

    摘要： A pollution control catalyst for a catalytic converter in the exhaust system of an internal combustion engine, which catalyst comprises a support impregnated with (i) at least one platinum group precious metal, and with (ii) cerium base metal, or a combination of cerium and at least one other base metal, is facilely prepared by (1) impregnating a catalyst support with precursor compounds of said cerium base metal, or of said cerium base metal and of at least one other base metal, (2) activating said impregnated support, under a neutral or oxidizing atmosphere, at a temperature ranging from 120.degree. to 800.degree. C., (3) impregnating said catalyst support with precursor compounds of said at least one platinum group precious metal, together with a delayed-action organic reducing agent, inactive under cold conditions, which effects reduction of said platinum group precious metal precursor compounds, but not of any cerium or other base metal precursor compounds, under the conditions of the step (4) below, and (4) activating said impregnated catalyst, also under a neutral or oxidizing atmosphere, at a temperature ranging from 300.degree. to 800.degree. C.

    摘要翻译： 一种用于内燃机排气系统中的催化转化器的污染控制催化剂，该催化剂包括浸渍有（i）至少一种铂族贵金属和（ii）铈贱金属或铈组合的载体 和至少一种其它贱金属，通过（1）用催化剂载体浸渍所述铈贱金属或所述铈贱金属和至少一种其它贱金属的前体化合物来容易地制备，（2）活化所述浸渍的载体 在中性或氧化性气氛下，在120℃至800℃的温度下，（3）用所述至少一种铂族贵金属的前体化合物浸渍所述催化剂载体以及延迟作用的有机还原剂 在寒冷条件下无活性，其在锡的条件下还原所述铂族贵金属前体化合物而不是任何铈或其它贱金属前体化合物 p（4），以及（4）在中性或氧化性气氛下，在300〜800℃的温度下活化所述浸渍的催化剂。

    Catalyst for treatment of exhaust gases from internal combustion engines
    4.
    发明授权
    Catalyst for treatment of exhaust gases from internal combustion engines 失效
    用于处理内燃机废气的催化剂

    公开(公告)号：US4426319A

    公开(公告)日：1984-01-17

    申请号：US355184

    申请日：1982-03-05

    申请人： Gilbert Blanchard ,  Jean-Pierre Brunelle ,  Michel Prigent

    发明人： Gilbert Blanchard ,  Jean-Pierre Brunelle ,  Michel Prigent

    IPC分类号： B01D53/94 ,  B01J23/00 ,  B01J23/86 ,  B01J23/89 ,  B01J37/02 ,  B01J23/10 ,  B01J23/62

    CPC分类号： B01D53/945 ,  B01J23/8906 ,  B01J23/894 ,  B01J37/024 ,  Y02T10/22

    摘要： The exhaust gases from internal combustion engines are catalytically oxidized/reduced, to remove CO, unburned hydrocarbons and NO.sub.x therefrom, utilizing an improved stable and long-lived catalyst which comprises (1) a support substrate, e.g., a monolithic or particulate support, and (2) an active phase deposited thereon, said active phase (2) comprising (i) cerium, (ii) iron, (iii) at least one of the metals gallium and/or yttrium, (iv) at least one of the metals platinum and/or palladium, and (v) at least one of the metals iridium and/or rhodium.

    摘要翻译： 来自内燃机的废气被催化氧化/还原，以利用改进的稳定且长寿命的催化剂除去CO，未燃碳氢化合物和NOx，其包括（1）支撑衬底，例如整体或颗粒状载体，以及 （2）沉积在其上的活性相，所述活性相（2）包含（i）铈，（ii）铁，（iii）金属镓和/或钇中的至少一种，（iv）至少一种金属 铂和/或钯，和（v）金属铱和/或铑中的至少一种。

    Composite catalyst for treatment of vehicular exhaust gases and process for the preparation of the catalyst
    8.
    发明授权
    Composite catalyst for treatment of vehicular exhaust gases and process for the preparation of the catalyst 失效
    用于处理车辆废气的复合催化剂和催化剂的制备方法

    公开(公告)号：US4621071A

    公开(公告)日：1986-11-04

    申请号：US679449

    申请日：1984-12-07

    申请人： Gilbert Blanchard ,  Michel Prigent

    发明人： Gilbert Blanchard ,  Michel Prigent

    IPC分类号： B01D53/94 ,  B01J23/10 ,  B01J23/12 ,  B01J23/36 ,  B01J23/40 ,  B01J23/56 ,  B01J23/63 ,  B01J23/66 ,  B01J23/89 ,  B01J37/00 ,  B01J37/02 ,  B01J21/04 ,  B01J23/64

    CPC分类号： B01J37/0009 ,  B01J23/56 ,  B01J23/66 ,  B01J37/0236

    摘要： A composite active phase/support catalyst adapted for the treatment of internal combustion engine exhaust gases, the active phase of which comprising at least one metal from a first group comprising platinum, palladium, iridium, rhodium, ruthenium, rhenium, silver, gold or plurality thereof and at least one additional metal and the support therefor comprising binder/filler admixture, is facilely prepared by (i) intimately admixing the binder and filler support material with at least 50% by weight but less than all of said at least one first group metal, or precursor thereof, and/or of said at least one additional metal, (ii) forming the resulting admixture into catalyst shaped article, (iii) drying and optionally calcining said catalyst shaped article, (iv) incorporating the remainder of said at least one first group metal, or precursor thereof, and/or said at least one additional metal into said catalyst shaped article, and then (v) drying and activating the composite catalyst.

    摘要翻译： 一种适用于处理内燃机废气的复合活性相/载体催化剂，其活性相包含至少一种金属，所述第一组包括铂，钯，铱，铑，钌，铼，银，金或多种金属 并且至少一种另外的金属及其包含粘合剂/填料混合物的载体通过以下方式容易地制备：（i）将粘合剂和填料载体材料与至少50重量％但小于所有所述至少一个第一组 金属或其前体和/或所述至少一种另外的金属，（ii）将所形成的混合物形成催化剂成型制品，（iii）干燥和任选地煅烧所述催化剂成型制品，（iv）将剩余的所述的 至少一种第一组金属或其前体，和/或所述至少一种另外的金属加入到所述催化剂成型制品中，然后（v）干燥和活化复合催化剂。