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    Low density alumina spheres of improved strength at high temperature
    1.
    发明授权
    Low density alumina spheres of improved strength at high temperature 失效
    低密度氧化铝球体在高温下的改进强度

    公开(公告)号：US3714071A

    公开(公告)日：1973-01-30

    申请号：US3714071D

    申请日：1970-03-18

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： MICHALKO E

    IPC: B01D53/86 ,  B01J2/08 ,  B01J23/10 ,  B01J35/08 ,  B01J11/32 ,  B01J11/44

    CPC classification number: B01J35/08 ,  B01D53/86 ,  B01J2/08 ,  B01J23/10

    Abstract: Low density alumina spheres of improved strength at high temperature are prepared by commingling an acidic alumina sol and an aqueous rare earth metal salt solution with an ammonia precursor at below gelation temperature and dispersing the mixture as droplets in a hot oil bath. The hydrogel spheres which form are aged, washed and dried, and calcined. Low density alumina spheres are useful as a catalyst or as a catalyst support, particularly in the conversion of hot exhaust gases from an internal combustion engine.

    Abstract translation: 通过在低于凝胶化温度下将氨前体与酸性氧化铝溶胶和稀土金属盐水溶液混合，并将该混合物作为液滴分散在热油浴中来制备在高温下改进强度的低密度氧化铝球。 将形成的水凝胶球体进行老化，洗涤和干燥，并煅烧。 低密度氧化铝球体可用作催化剂或催化剂载体，特别是在内燃机的热废气转化中。

    Agglomerating partially dehydrated gel-derived pseudoboehmitic alumina to form strong porous spheres
    5.
    发明授权
    Agglomerating partially dehydrated gel-derived pseudoboehmitic alumina to form strong porous spheres 失效
    将部分脱水凝胶衍生的PSEUDOBOEHMITIC ALUMAN组合成形成多孔多孔

    公开(公告)号：US3714313A

    公开(公告)日：1973-01-30

    申请号：US3714313D

    申请日：1971-01-27

    Applicant: KAISER ALUMINIUM CHEM CORP

    Inventor： BEIDING W ,  EMERSON R ,  WILLIAMS R

    IPC: B01J20/08 ,  B01J35/10 ,  C04B35/10 ,  B01J11/44 ,  C01F7/02

    CPC classification number: B01J35/10 ,  B01J20/08 ,  B01J35/1019 ,  B01J35/1042 ,  C04B35/10

    Abstract: Gel-derived crystalline alumina containing at least 40 percent pseudoboehmite and having low cationic and anionic impurity levels is partially dehyrated to an LOI of 22-34 percent, ground to at least 85 percent minus 325 mesh, shaped into spheres by conventional agglomerating devices while adding sufficient water to rise the total water content to 52-65 percent. These shaped spheres, without any ageing treatment, are then heated to a temperature in the range of 350*-650*C for a time necessary to produce the desired strength. The resultant spheres are strong and have a high total porosity, at least 20 percent of which consists of pores in the 120-800 A size range. They are useful as desiccants, active alumina and catalyst supports.

    Abstract translation: 含有至少40％假勃姆石并且具有低阳离子和阴离子杂质水平的凝胶衍生的结晶氧化铝被部分脱氢至22-34％的LOI，经过常规聚集装置研磨至至少85％至325目，成球形，同时加入 足够的水将总含水量提高到52-65％。 然后将这些成形的球体进行任何时效处理，然后将其加热至350-650℃的温度，达到所需强度所需的时间。 所得的球体是强的并且具有高的总孔隙率，其至少20％由120-800A尺寸范围内的孔组成。 它们可用作干燥剂，活性氧化铝和催化剂载体。

    Method and equipment for the preparation of catalytically active bodies
    6.
    发明授权
    Method and equipment for the preparation of catalytically active bodies 失效
    用于制备催化活性物质的方法和设备

    公开(公告)号：US3668149A

    公开(公告)日：1972-06-06

    申请号：US3668149D

    申请日：1969-10-13

    Applicant: STAMICARBON

    Inventor： GEUS JOHN W ,  LEMMENS JAN C

    IPC: B01J21/16 ,  B01D39/06 ,  B01J23/70 ,  B01J23/74 ,  B01J37/00 ,  B01J37/02 ,  B01J37/06 ,  B01J37/08 ,  C04B20/06 ,  B01J11/44

    CPC classification number: C04B20/06 ,  B01D39/06 ,  B01J23/70 ,  B01J37/00 ,  B01J37/0201

    Abstract: Porous catalyst bodies are produced from a thermally stable inorganic carrier material by introducing a suspension of the said carrier material into a liquid immiscible with the suspension medium and heated above the boiling point of the said medium. After evaporation of the suspension medium to an essential extent, the porous catalyst bodies formed are separated from the liquid and subsequently heated to an elevated temperature to improve the strength caracteristics thereof.

    Abstract translation: 通过将所述载体材料的悬浮液引入与所述悬浮介质不混溶的液体中并在所述介质的沸点之上被加热，由热稳定的无机载体材料制备多孔催化剂体。 在将悬浮介质蒸发至必要程度之后，将形成的多孔催化剂体与液体分离，随后加热至升高温度以提高其强度特性。

    Method of making silica particles
    7.
    发明授权
    Method of making silica particles 失效
    制备二氧化硅颗粒的方法

    公开(公告)号：US3656901A

    公开(公告)日：1972-04-18

    申请号：US3656901D

    申请日：1967-08-30

    Applicant: OWENS ILLINOIS INC

    Inventor： KUMMERLE HERMAN FRED

    IPC: B01J2/08 ,  B01J21/00 ,  B01J21/08 ,  C01B33/16 ,  B01J11/44

    CPC classification number: C01B33/166 ,  B01J2/08 ,  B01J21/00 ,  B01J21/08

    Abstract: Silica particles, e.g., in bead form, are prepared from an alkali-metal (preferably sodium) silicate in an aqueous-organic reaction medium at ambient (preferably) or higher temperature and at a pH within the range of from 4.5 to 10. The organic (preferably recoverable organic) medium is critical and has a specifically defined bead-making capability. It provides a dispersed phase in which a silica ''''hydrosol'''' derived from an alkali-metal silicate is soluble and wherein it can polymerize to yield gelled particles of silica. Examples of operative organic media are n-hexylamine, 2ethylhexylamine, 2-methyl-5-ethylpyridine, n-hexyl Carbitol and n-hexyl Cellosolve. Organic media found to be inoperative are 2methyl-1-pentanol, 1-hexanol, 5-ethylbutanol and n-butanol. Descriptions are given of the two different types of silica products that are obtained; also, details of operating conditions and factors that influence the type of silica particles that result. The silica products are useful as, for example, catalysts and catalyst supports, and in other applications wherein silica in particulate form is employed.

    Abstract translation: 二氧化硅颗粒，例如珠粒形式，在环境温度（优选）或更高的温度下，pH在4.5至10的范围内，由含水 - 有机反应介质中的碱金属（优选钠）硅酸盐制备。 有机（优选可回收的有机）介质是关键的并且具有明确的珠粒制备能力。 它提供了一种分散相，其中衍生自碱金属硅酸盐的二氧化硅“水溶胶”是可溶的，并且其中它可以聚合以产生硅胶的凝胶颗粒。

    Preparation of a catalytic composite comprising a combination of germanium and halogen with alumina
    8.
    发明授权
    Preparation of a catalytic composite comprising a combination of germanium and halogen with alumina 失效
    包含锗和卤素与铝的组合的催化复合材料的制备

    公开(公告)号：US3642660A

    公开(公告)日：1972-02-15

    申请号：US3642660D

    申请日：1969-08-20

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： MITSCHE ROY T

    IPC: B01J23/14 ,  B01J23/62 ,  C10G35/09 ,  C10G47/14 ,  C10G49/02 ,  B01J11/78 ,  B01J11/16 ,  B01J11/44

    CPC classification number: B01J23/624 ,  B01J23/14 ,  B01J35/0093 ,  C10G35/09 ,  C10G47/14 ,  C10G49/02

    Abstract: A GERMANIUM COMPONENT IS UNIFORMLY DISPERSED THROUGHTOUT AN ALUMINA CARRIER MATERIAL BY THE STEPS OF: FIRST, UNIFORMLY DISTRIBUTING FINELY DIVIDED GERMANIUM DIOXIDE PARTICLES THROUGHTOUT AN ALUMINUM HYDROXYL HALIDE SOL TO FORM AN INTIMATE MIXTRUE THEREOF; SECOND, GELLING THE RESULTING MIXTURE TO OBTAIN A HYDROGEL; AND, FINALLY, TREATING AND CALCININING THE RESULTING HYDROGEL TO PRODUCE A SOLID COMPOSITE HAVING A GERMANIUM COMPONENT UNIFORMLY DISPERSED THEREIN. KEY FEATURE OF THIS METHOD INVOLVES THE PREPARATION OF THE CATALYST FROM AN ALUMINUM HYDROXYL HALIDE SOL TO WHICH FINELY DIVIDED PARTICLES OF GERMANIUM DIOXIDE ARE ADDED, THEREBY ACHIEVING UNIFORM DISPERSION OF THE GERMANIUM COMPONENT IN THE ALUMINA CARRIER MATERIAL AND ALSO CAUSING SOME BENEFICICAL INTERACTION BETWEEN THE SOL AND THE GERMANIUM DIOXIDE PARTICLES. RESULTING COMPOSITE IS TYPICALLY COMBINED WITH A PLATINUM GROUP COMPONENT AND UTILIZED TO ACCELERATE A WIDE VARIETY OF REACTIONS IN PROCESSES SUCH AS HYDROCRACKING, REFORMING, ISOMERIZATION, ETC.

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