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17 条记录 (耗时 0.031 秒)

    Zirconia-pillared clays and micas
    11.
    发明授权
    Zirconia-pillared clays and micas 失效
    氧化锆柱状粘土和云母

    公开(公告)号：US5248644A

    公开(公告)日：1993-09-28

    申请号：US867581

    申请日：1992-04-13

    申请人： Jack W. Johnson ,  John F. Brody

    发明人： Jack W. Johnson ,  John F. Brody

    IPC分类号： B01J21/16 ,  B01D53/86 ,  B01J29/00 ,  B01J29/04 ,  C01B33/26 ,  C01B33/42 ,  C01B39/00

    CPC分类号： B01J29/049

    摘要： The present invention is directed to improved zirconia-pillared clays exhibiting high crystallinity and layer spacing and significantly higher thermal stability prepared using zirconyl acetate as the pillaring agent by: (a) mixing a clay selected from the group consisting of smectite clays and fluoromicas with a solution of zirconyl acetate for a time and at a temperature sufficient to form a pillared clay product; (b) separating said pillared clay product formed from the solution; (c) washing the separated pillared clay product with water; (d) drying the separated, washed pillared clay product at a temperature from about 50.degree. to 200.degree. C.; (e) calcining the dried pillared clay product at a temperature from about 300.degree. to 700.degree. C.

    摘要翻译： 本发明涉及改进的氧化锆柱状粘土，其表现出高结晶度和层间距，并且使用乙酸氧锆酯作为起始剂制备了显着更高的热稳定性，其方法是：（a）将选自蒙脱石粘土和氟代核的粘土与 乙酸氧锆溶液一段时间并在足以形成柱状粘土产物的温度下进行; （b）分离由溶液形成的柱状粘土产品; （c）用水洗涤分离的柱状粘土产品; （d）在约50℃至200℃的温度下干燥分离的经洗涤的柱状粘土产品; （e）在约300℃至700℃的温度下煅烧干燥的柱状粘土产品。

    Catalyst for dehydrogenation of paraffins
    13.
    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

    申请人： John L. Robbins ,  Elise Marucchi-Soos ,  Jack W. Johnson ,  John F. Brody

    发明人： John L. Robbins ,  Elise Marucchi-Soos ,  Jack W. Johnson ,  John F. Brody

    IPC分类号： B01J23/60 ,  B01J23/62 ,  B01J29/04 ,  C07C5/32 ,  C07C5/333

    CPC分类号： B01J29/049 ,  B01J23/60 ,  B01J23/62 ,  C07C5/325 ,  C07C5/3337

    摘要： 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.

    摘要翻译： 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℃

    Pillared micas
    16.
    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

    申请人： Michael C. Kerby ,  Kenneth L. Riley ,  Fred M. Long ,  Jack W. Johnson ,  John F. Brody

    发明人： Michael C. Kerby ,  Kenneth L. Riley ,  Fred M. Long ,  Jack W. Johnson ,  John F. Brody

    IPC分类号： B01J29/04 ,  B22F5/00 ,  B28D1/32

    CPC分类号： B01J29/049 ,  Y10T428/12056

    摘要： 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.

    摘要翻译： 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
    17.
    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

    申请人： Jack W. Johnson ,  John F. Brody

    发明人： Jack W. Johnson ,  John F. Brody

    IPC分类号： B01J20/12 ,  B01J21/16 ,  B01J29/04 ,  C01B33/42 ,  C01B39/00 ,  C01B33/26

    CPC分类号： B01J29/049 ,  B01J20/12

    摘要： 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.

    摘要翻译： 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。