Pillared micas
    22.
    发明授权
    Pillared micas 失效
    柱状云母

    公开(公告)号:US5340657A

    公开(公告)日:1994-08-23

    申请号:US935504

    申请日:1992-08-26

    CPC classification number: B01J29/049 Y10T428/12056

    Abstract: This invention relates to pillared micas, which comprise an active metal selected from the group consisting of Pt, Cr, Pd, It, Rh and mixtures thereof, and a first modifier metal selected from the group consisting of Sn, Ga and mixtures thereof. The mica may also be modified with a second modifier metal selected from the group consisting of alkali metals, alkaline earth metals, or rare earth metals and mixtures thereof. This invention further relates to a process for preparing such a catalyst.

    Abstract translation: 本发明涉及柱状云母,其包含选自Pt,Cr,Pd,It,Rh及其混合物的活性金属和选自Sn,Ga及其混合物的第一修饰金属。 云母也可以用选自碱金属,碱土金属或稀土金属的第二种改性金属及其混合物进行改性。 本发明还涉及制备这种催化剂的方法。

    Silica pillared micas
    23.
    发明授权
    Silica pillared micas 失效
    硅胶柱状云母

    公开(公告)号:US5330734A

    公开(公告)日:1994-07-19

    申请号:US28485

    申请日:1993-03-09

    CPC classification number: B01J29/049 B01J20/12

    Abstract: Microporous materials of low acidity useful as sorbents and catalytic supports have been produced by pillaring tetrasilicic mica with silica polyoxocations generated by hydrolysis of organosilane precursors. Calcination at an intermediate temperature followed by washing of the solid with water is important in producing highly microporous material.

    Abstract translation: 通过用有机硅烷前体水解生成的二氧化硅聚氧化苯撑,将四硅云母作为吸附剂和催化剂载体,制备了低酸度的微孔材料。 在中间温度下煅烧,然后用水洗涤固体对于生产高度微孔的材料是重要的。

    Cell containing an alkali metal anode, a solid cathode, and a
closoborane and/or closocarborane electrolyte
    25.
    发明授权
    Cell containing an alkali metal anode, a solid cathode, and a closoborane and/or closocarborane electrolyte 失效
    含有碱金属阳极,固体阴极和氯三硼烷和/或氯代硼烷电解质的电池

    公开(公告)号:US4201839A

    公开(公告)日:1980-05-06

    申请号:US956746

    申请日:1978-11-01

    CPC classification number: H01M10/0566

    Abstract: A novel electrochemical cell is disclosed which contains an alkali metal anode, a solid cathode, and an electrolyte containing one or more closoborane and/or closocarborane compounds in aprotic solvent. Preferred cells are those containing lithium anodes, chalcogenide cathodes and electrolytes containing one or more closoborane compounds in aprotic solvent with a chelating agent.

    Abstract translation: 公开了一种新颖的电化学电池,其包含碱金属阳极,固体阴极和在非质子溶剂中含有一种或多种氯三硼烷和/或氯代硼烷化合物的电解质。 优选的细胞是包含锂阳极,硫族化物阴极和在非质子溶剂中含有螯合剂的含有一种或多种氯三硼烷化合物的电解质。

    Synthesis of microporous ceramics
    29.
    发明授权
    Synthesis of microporous ceramics 失效
    微孔陶瓷的合成

    公开(公告)号:US5563212A

    公开(公告)日:1996-10-08

    申请号:US248291

    申请日:1994-05-24

    CPC classification number: C04B38/0022

    Abstract: The present invention provides for microporous ceramic materials having a surface area in excess of 50 m.sup.2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.015 cm.sup.3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided particles comprising a non-silicon containing ceramic, carbon, or an inorganic compound having a decomposition temperature in excess of 400.degree. C., whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100.degree. C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the ceramic intermediate under controlled conditions of heating up to temperatures of less than 1100.degree. C. to form a microporous ceramic product.

    Abstract translation: 本发明提供了具有超过50m 2 / gm的表面积的微孔陶瓷材料和开孔的微孔孔结构,其中微孔具有小于20埃的平均宽度,并且其中所述微孔结构包括大于约0.015的体积 cm3 / gm的陶瓷。 本发明还提供一种预陶瓷复合中间体组合物,其包含陶瓷前体和包含非硅含量陶瓷,碳或分解温度超过400℃的无机化合物的细碎颗粒的混合物,其热分解产物 在惰性气氛中或在高达少于约1100℃的氨气氛中,产生本发明的微孔陶瓷。 还提供了制备本发明的微孔陶瓷的方法,其包括在加热至低于1100℃的温度的受控条件下陶瓷中间体的热解,以形成微孔陶瓷产品。

    Catalyst for dehydrogenation of paraffins
    30.
    发明授权
    Catalyst for dehydrogenation of paraffins 失效
    石蜡脱氢催化剂

    公开(公告)号:US5476982A

    公开(公告)日:1995-12-19

    申请号:US259717

    申请日:1994-06-14

    CPC classification number: B01J29/049 B01J23/60 B01J23/62 C07C5/325 C07C5/3337

    Abstract: The present invention is directed to a novel catalyst composition and its use in the dehydrogenation of paraffins to olefins. The catalyst comprises an alloy of a Group VIII noble metal and a metal selected from the group consisting of zinc and gallium on a support selected from the group consisting of silica, zinc oxide modified silica and zinc oxide modified silica-pillared clays when said alloy is a zinc alloy, and silica, gallium oxide modified silica and gallium oxide modified silica-pillared clays when said alloy is a gallium alloy. The instant catalyst is an active and selective catalyst for the catalytic dehydrogenation of paraffins to olefins, especially gaseous paraffins, having the added benefit of retaining high activity and selectivity even following repeated regeneration by calcination in oxygen containing gas at temperatures of 450.degree. C. to 650.degree. C., preferably 450.degree. C. to 500.degree. C.

    Abstract translation: 本发明涉及新型催化剂组合物及其在链烷烃脱氢成烯烃中的应用。 所述催化剂包含由选自二氧化硅,氧化锌改性二氧化硅和氧化锌改性二氧化硅 - 柱状粘土的载体上的第八族贵金属和选自锌和镓的金属的合金,当所述合金为 锌合金,二氧化硅,氧化镓改性二氧化硅和氧化镓改性二氧化硅柱状粘土。 本催化剂是用于将链烷烃催化脱氢成烯烃,特别是气态烷烃的活性和选择性催化剂,具有保持高活性和选择性的附加益处,即使在含氧气体中通过在450℃至450℃的温度下煅烧反复再生, 650℃,优选450℃至500℃

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