Skeletal isomerization of alkyl esters and derivatives prepared therefrom
    48.
    发明授权
    Skeletal isomerization of alkyl esters and derivatives prepared therefrom 有权
    由其制备的烷基酯和衍生物的骨架异构化

    公开(公告)号:US06946567B2

    公开(公告)日:2005-09-20

    申请号:US10339437

    申请日:2003-01-09

    摘要: The present invention relates to a process for the skeletal isomerization of unsaturated linear fatty acids to branched fatty acids which comprises contacting said unsaturated linear fatty acids with at least one large pore zeolite catalyst wherein said at least one zeolite catalyst comprises a material having a three dimensional channel structure having a pore diameter of at least 6.0 Å. In another embodiment, the invention relates to a process for the skeletal isomerization and hydrogenation of unsaturated linear fatty acids to saturated branched fatty acids which comprises contacting said unsaturated linear fatty acids in the presence of an acidic catalyst, wherein said acidic catalyst comprises a mesoporous crystalline phase having pore walls containing primary and secondary crystalline building unit structures.

    摘要翻译: 本发明涉及不饱和直链脂肪酸骨架异构化为支链脂肪酸的方法,该方法包括使所述不饱和直链脂肪酸与至少一种大孔沸石催化剂接触,其中所述至少一种沸石催化剂包括具有三维 通道结构具有至少6.0的孔径。 在另一个实施方案中,本发明涉及不饱和直链脂肪酸骨架异构化和氢化为饱和支链脂肪酸的方法,其包括在酸性催化剂存在下使所述不饱和直链脂肪酸接触,其中所述酸性催化剂包含介孔结晶 相具有包含初级和次级结晶建筑物单元结构的孔壁。

    Catalyst for purifying diesel engine exhaust gas and method for production thereof
    50.
    发明申请
    Catalyst for purifying diesel engine exhaust gas and method for production thereof 有权
    柴油发动机废气净化用催化剂及其制造方法

    公开(公告)号:US20040224837A1

    公开(公告)日:2004-11-11

    申请号:US10838518

    申请日:2004-05-04

    IPC分类号: B01J029/06

    摘要: A catalyst which purges a diesel engine exhaust gas of HC, CO, and SOF and reduces the emission of particulates as well and a method for the production thereof are provided. The catalyst for purifying a diesel engine exhaust gas has deposited on a refractory three-dimensional structure a catalyst component comprising silica-alumina supporting at least one noble metal selected from the group consisting of platinum, palladium, and rhodium and zeolite. This catalyst is produced by adding a noble metal component into a slurry of silica-alumina thereby inducing chemical adsorption, then adding zeolite to the resultant mixture thereby obtaining a mixed slurry of a noble metal-supporting silica-alumina and zeolite, dipping a refractory three-dimensional structure in the slurry thereby inducing deposition of the catalyst component, and subsequently calcining the resultant composite.

    摘要翻译: 提供了一种清除HC,CO和SOF的柴油发动机废气并减少颗粒物排放的催化剂及其生产方法。 用于净化柴油发动机废气的催化剂已经沉积在耐火三维结构上,该催化剂组分包含二氧化硅 - 氧化铝,该二氧化硅 - 氧化铝支持至少一种选自铂,钯和铑的贵金属和沸石。 该催化剂是通过将贵金属组分添加到二氧化硅 - 氧化铝的浆料中而引起化学吸附,然后向所得混合物中加入沸石,从而获得含贵金属负载二氧化硅 - 氧化铝和沸石的混合浆料,浸渍耐火三 从而引起催化剂组分的沉积,随后煅烧所得到的复合材料。