Catalyst comprising palladium and its application in selective hydrogenation
    4.
    发明授权
    Catalyst comprising palladium and its application in selective hydrogenation 有权
    包含钯的催化剂及其在选择性氢化中的应用

    公开(公告)号:US08637719B2

    公开(公告)日:2014-01-28

    申请号:US12740240

    申请日:2008-10-24

    摘要: The invention concerns a catalyst comprising a porous support, palladium, at least one metal selected from the group constituted by alkalis and alkaline-earths, in which: the specific surface area of the porous support is in the range 50 to 210 m2/g; the palladium content in the catalyst is in the range 0.05% to 2% by weight; at least 80% by weight of the palladium is distributed in a crust at the periphery of the support, the thickness of said crust being in the range 20 to 200 μm; the metallic dispersion D is in the range 25% to 70%; the density of the palladium particles in the crust is in the range 1500 to 4100 particles of palladium per μm2; and said alkali and/or alkaline-earth metal is distributed homogeneously across the support. The invention also concerns the preparation of the catalyst and its use in selective hydrogenation.

    摘要翻译: 本发明涉及包含多孔载体钯,至少一种选自碱金属和碱土金属的金属的催化剂,其中多孔载体的比表面积为50-210m2 / g; 催化剂中的钯含量为0.05〜2重量%; 至少80重量%的钯分布在支撑体周边的外壳中,所述外壳的厚度在20至200μm的范围内; 金属分散体D在25%至70%的范围内; 地壳中的钯颗粒的密度在每毫米2的1500至4100个钯的颗粒范围内; 并且所述碱和/或碱土金属均匀地分布在载体上。 本发明还涉及催化剂的制备及其在选择性氢化中的用途。

    CATALYST COMPRISING PALLADIUM AND ITS APPLICATION IN SELECTIVE HYDROGENATION
    8.
    发明申请
    CATALYST COMPRISING PALLADIUM AND ITS APPLICATION IN SELECTIVE HYDROGENATION 有权
    包含钯的催化剂及其在选择性加氢中的应用

    公开(公告)号:US20100236986A1

    公开(公告)日:2010-09-23

    申请号:US12740240

    申请日:2008-10-24

    摘要: The invention concerns a catalyst comprising a porous support, palladium, at least one metal selected from the group constituted by alkalis and alkaline-earths, in which: the specific surface area of the porous support is in the range 50 to 210 m2/g; the palladium content in the catalyst is in the range 0.05% to 2% by weight; at least 80% by weight of the palladium is distributed in a crust at the periphery of the support, the thickness of said crust being in the range 20 to 200 μm; the metallic dispersion D is in the range 25% to 70%; the density of the palladium particles in the crust is in the range 1500 to 4100 particles of palladium per μm2; and said alkali and/or alkaline-earth metal is distributed homogeneously across the support. The invention also concerns the preparation of the catalyst and its use in selective hydrogenation.

    摘要翻译: 本发明涉及包含多孔载体钯,至少一种选自碱金属和碱土金属的金属的催化剂,其中多孔载体的比表面积为50-210m2 / g; 催化剂中的钯含量为0.05〜2重量%; 至少80重量%的钯分布在支撑体周围的外壳中,所述外壳的厚度在20至200μm的范围内; 金属分散体D在25%至70%的范围内; 地壳中钯粒子的密度在每平方米每毫升1500至4100毫克钯的范围内; 并且所述碱和/或碱土金属均匀地分布在载体上。 本发明还涉及催化剂的制备及其在选择性氢化中的用途。

    CATALYST PREPARED BY IMPREGNATION OF AN AQUEOUS SOLUTION CONTAINING OXY(HYDROXIDE) PARTICLES OF A CATION IN INTERACTION WITH A MOLECULAR SPECIES OF A GROUP VIII METAL
    9.
    发明申请
    CATALYST PREPARED BY IMPREGNATION OF AN AQUEOUS SOLUTION CONTAINING OXY(HYDROXIDE) PARTICLES OF A CATION IN INTERACTION WITH A MOLECULAR SPECIES OF A GROUP VIII METAL 审中-公开
    包含含有氧化物(羟基)的颗粒的水溶液与通过VIII族金属的分子物质相互作用的水溶液制备的催化剂

    公开(公告)号:US20080154074A1

    公开(公告)日:2008-06-26

    申请号:US11953272

    申请日:2007-12-10

    IPC分类号: C07C5/03 B01J37/00 B01J23/00

    摘要: The invention concerns a process for preparing a catalyst precursor comprising the following steps: 1)a) preparing a colloidal solution A with a defined pH containing oxy(hydroxide) particles of a cation Mz+ selected from the group constituted by cations from columns IIA, IIIA, IIIB, IVB and IVA of the periodic table; or 1)b) using a commercial aqueous colloidal solution (solution A) with a defined pH containing oxy(hydroxide) particles of a cation Mz+ selected from the group constituted by cations from columns IIA, IIIA, IIIB, IVB and IVA of the periodic table; 2) adding in an aqueous solution B containing a precursor salt of a group VIII metal with a concentration of 0.001 to 1 mole/litre, the precursor salt of the metal being soluble under the pH conditions used in step 1. The invention also concerns the catalyst obtained from a catalyst precursor and its application in selective hydrogenation.

    摘要翻译: 本发明涉及一种制备催化剂前体的方法,其包括以下步骤:1)a)制备胶体溶液A,其中所述胶体溶液A具有含有选自以下基团的阳离子M z(z)的氧(氢氧化物)颗粒的定义的pH 由周期表的列IIA,IIIA,IIIB,IVB和IVA的阳离子构成; 或1)b)使用具有规定的pH的市售含水胶体溶液(溶液A),其含有选自由IIA,IIIA,IIIA,IIIA族中的阳离子构成的组的阳离子M z z + 周期表IIIB,IVB和IVA; 2)在含有浓度为0.001〜1摩尔/升的Ⅷ族金属的前体盐的水溶液B中加入,该金属的前体盐在步骤1中使用的pH条件下是可溶的。本发明还涉及 由催化剂前体获得的催化剂及其在选择性氢化中的应用。