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    Dual pore-structure artificial carbon and graphite
    36.
    发明授权
    Dual pore-structure artificial carbon and graphite 失效
    双孔结构人造碳和石墨

    公开(公告)号：US4205055A

    公开(公告)日：1980-05-27

    申请号：US903915

    申请日：1978-05-08

    Applicant: Jacques Maire ,  Jacques Fourre ,  Jean P. Gervais

    Inventor： Jacques Maire ,  Jacques Fourre ,  Jean P. Gervais

    IPC: C01B31/04 ,  B01D53/02 ,  B01J21/18 ,  B01J35/10 ,  C01B31/08 ,  C04B35/52 ,  C04B38/00 ,  C01B31/02

    CPC classification number: B01D53/02 ,  B01J21/18 ,  B01J35/10 ,  C04B35/52 ,  C04B38/0051 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1071 ,  C04B2201/40

    Abstract: Dual pore-structured carbon and graphite consist essentially of a macroporous agglomeration of strongly bonded microporous grains of carbon or graphite the radii of the macropores therein being from substantially 10 to 350 .mu.m and those of the micropores from substantially 0.2 to 1.0 .mu.m, with the macropores being joined by intercommunicating channels which form a fluid permeable structure. Such carbon or graphite has a density of from 0.70 to 1.50 grams/cc., a permeability to gases of from 20 to 500 cm.sup.2 /sec/atmos and a porosity of from 30 to 50%. Such materials are produced by including in a mixture of tar or pitch and finely divided solid carbonaceous material in suitable proportions, a particulate eliminable non-carbon-forming material having a particle size of 10 to 350 .mu.m, which material is substantially insoluble in said mixture, in a proportion sufficient to secure the desired porosity, shaping and then heating the mixture to effect carbonization and/or graphitization thereof and, after the product has cooled, giving any appropriate after-treatment to eliminate any heat treated residue from said particulate material and leave the desired porous structure.

    Abstract translation: 双孔结构碳和石墨基本上由碳或石墨的强粘结微孔颗粒的大孔附聚组成，其中大孔的半径大致为10至350μm，微孔的半径大致为0.2至1.0μm， 大孔通过形成流体可渗透结构的相互通道连接。 这种碳或石墨的密度为0.70至1.50克/立方厘米，对气体的渗透性为20至500厘米2 /秒/大气压，孔隙率为30至50％。 这些材料通过以焦油或沥青的混合物和适当比例的细分散的固体碳质材料的混合物制成，颗粒尺寸为10至350μm的可除去颗粒的非碳形成材料，该材料基本上不溶于所述 混合物，以足以确保所需孔隙率的成分，成型然后加热混合物以实现其碳化和/或石墨化，并且在产品冷却后，进行任何适当的后处理以从所述颗粒材料中除去任何经热处理的残余物 并留下所需的多孔结构。

    Supported metal catalyst, methods of making same, and processing using same
    37.
    发明授权
    Supported metal catalyst, methods of making same, and processing using same 失效
    支持的金属催化剂，其制备方法和使用它们的处理

    公开(公告)号：US4038175A

    公开(公告)日：1977-07-26

    申请号：US645715

    申请日：1975-12-31

    Applicant: Madan Mohan Bhasin

    Inventor： Madan Mohan Bhasin

    IPC: B01J21/04 ,  B01J23/40 ,  B01J35/10 ,  C10G45/40 ,  C10G23/04

    CPC classification number: B01J35/10 ,  B01J23/40 ,  B01J21/04 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1066 ,  B01J35/1071 ,  C10G2400/02

    Abstract: There is described a catalyst composition suitable in the hydrogenation of, for example, dripolenes, which consists essentially of palladium, or platinum metal dispersed on e.g., an alpha-alumina support, said support possessing the following characteristics:A. a porosity of about 0.1 cubic centimeter to about 0.8 cubic centimeter per gram of support;B. a surface area of about 0.1 square meter to about 10 square meters per gram of support; andC. an average pore size of about 0.05 micron to about 100 microns, a major proportion of the pores having a pore size in the range of about 0.05 micron to about 10 microns, wherein the amount of palladium dispersed on the surface of the support is about 0.01 per cent to about 1.0 per cent by weight of metal based on the weight of the catalyst composition, and the amount of platinum dispersed on the surface of the support is about 0.02 per cent to about 2.0 per cent by weight of metal based on the weight of the catalyst composition; and wherein at least about 7.5 per cent of the total metal atoms dispersed on the surface of the support are exposed. One process described for the making of such a catalyst utilizes either a palladium or platinum nitrate solution from which the catalyst is deposited upon an alpha-alumina support. Another process for making the catalyst involves impregnating the alpha-alumina support with a solution of palladium or platinum acetylacetonate followed by appropriate drying.

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