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69 条记录 (耗时 0.032 秒)

    Crystalline layered material MCM-20 and process for its preparation
    22.
    发明授权
    Crystalline layered material MCM-20 and process for its preparation 失效
    结晶层状材料MCM-20及其制备方法

    公开(公告)号：US4791088A

    公开(公告)日：1988-12-13

    申请号：US939265

    申请日：1986-12-09

    申请人： Pochen Chu ,  Guenter H. Kuehl ,  Michael E. Landis

    发明人： Pochen Chu ,  Guenter H. Kuehl ,  Michael E. Landis

    IPC分类号： B01J21/08 ,  B01J29/04 ,  C01B33/20

    CPC分类号： B01J29/049 ,  C01B33/20 ,  C01B33/28

    摘要： Layered silicate materials of high thermal stability and surface area which contain interspathic oxides such as silica as prepared by treating a layered silicate, with organic cation, to spread the layers apart. A compound such as tetraethylorthosilicate, capable of forming said oxide, is thereafter introduced between the layers. The resulting product is treated to form the oxide, e.g. by hydrolysis, to produce the layered silicate material. The resulting product may be employed as a catalyst material in the conversion of hydrocarbons.

    摘要翻译： 具有高热稳定性和表面积的层状硅酸盐材料，其含有通过用有机阳离子处理层状硅酸盐制备的层间氧化物如二氧化硅，以将层分开。 然后在层之间引入能够形成所述氧化物的化合物如原硅酸四乙酯。 将所得产物处理形成氧化物，例如。 通过水解制备层状硅酸盐材料。 所得产物可用作烃转化中的催化剂材料。

    Zeolite-clay composition and uses thereof
    23.
    发明授权
    Zeolite-clay composition and uses thereof 失效

    公开(公告)号：US5140949A

    公开(公告)日：1992-08-25

    申请号：US758668

    申请日：1991-09-12

    申请人： Pochen Chu ,  William E. Garwood

    发明人： Pochen Chu ,  William E. Garwood

    IPC分类号： A23K1/175 ,  B01J20/16 ,  B01J20/18

    CPC分类号： B01J20/18 ,  A23K20/28 ,  B01J20/16

    摘要： A hydrous aluminosilicate adsorbent composition in which the active adsorbent is a mixture of non-fibrous clay with non-fibrous zeolite. The composition is useful as a feed supplement in animal husbandry, and as a topical adsorbent for veterinary use. The mixture has a high capacity for adsorption of ammonium cations, and a synergistically high selectivity for their adsorption. Beneficial effects as feed supplement may arise from lowering the amount of ammonia passed to the liver from the alimentary canal.

    Catalytic cracking process using high equilibrium activity additive catalyst
    25.
    发明授权
    Catalytic cracking process using high equilibrium activity additive catalyst 失效
    催化裂化工艺采用高平衡活性添加剂催化剂

    公开(公告)号：US4898662A

    公开(公告)日：1990-02-06

    申请号：US264577

    申请日：1988-10-31

    申请人： Pochen Chu ,  Sadi Mizrahi

    发明人： Pochen Chu ,  Sadi Mizrahi

    IPC分类号： B01J29/40 ,  C10G11/05

    CPC分类号： B01J29/40 ,  C10G11/05 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42

    摘要： A catalytic cracking process is disclosed in which octane improvement is attained by the addition to conventional cracking catalysts of small amounts of additive catalyst comprising a class of zeolites characterized by a silica to alumina mole ratio greater than about 12 and a Constraint Index of about 1 to 12 bound in a matrix chosen such that the matrix component forms a thermodynamically favored compound with selected cations. Sustained catalytic activity is achieved by pre-exchanging the catalyst to a high level of selected cation loading. By extending the active life of the additive catalyst, markedly lower makeup catalyst addition rates are required.

    摘要翻译： 公开了一种催化裂解方法，其中通过加入少量添加剂催化剂的常规裂化催化剂来实现辛烷值改进，所述催化剂包含一类沸石，其特征在于二氧化硅与氧化铝的摩尔比大于约12，约束指数为约1至 12以选定的矩阵结合，使得基质组分与选择的阳离子形成热力学上有利的化合物。 通过将催化剂预交换为高水平的选择的阳离子负载来实现持续的催化活性。 通过延长添加剂催化剂的活性，需要显着降低催化剂添加量。

    Zeolite synthesis using an alcohol or like molecules
    29.
    发明授权
    Zeolite synthesis using an alcohol or like molecules 失效
    使用醇或类似分子的沸石合成

    公开(公告)号：US5160500A

    公开(公告)日：1992-11-03

    申请号：US785361

    申请日：1991-10-30

    申请人： Pochen Chu ,  Donald J. Klocke ,  David O. Marler ,  John P. McWilliams ,  James C. Vartuli

    发明人： Pochen Chu ,  Donald J. Klocke ,  David O. Marler ,  John P. McWilliams ,  James C. Vartuli

    IPC分类号： B01J29/40 ,  B01J29/65 ,  B01J29/70 ,  C01B39/48 ,  C07C2/66 ,  C07C4/18

    CPC分类号： C07C4/18 ,  B01J29/40 ,  B01J29/65 ,  B01J29/7046 ,  C01B39/48 ,  C07C2/66 ,  B01J2229/20 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42 ,  C07C2529/65 ,  C07C2529/70

    摘要： There is provided a method for preparing a zeolite other than ZSM-5 from a reaction mixture comprising a mixed organic directing agent which is a combination of (a) an organic nitrogen containing compound such as an amine or a quaternary ammonium compound and (b) an alcohol and/or diol. Particular zeolites synthesized by this method include ZSM-22 and ZSM-23. The use of an alcohol or a diol may inhibit the coformation of ZSM-5. Especially when used to prepare ZSM-23, this method enables the preparation of more catalytically active ZSM-23 of reduced crystallite size and also enables the use of lower crystallization temperatures. Particular mixed organic directing agents for the preparation of ZSM-23 are combinations of (a) pyrrolidine and (b) ethanol or ethylene glycol. Other factors which enhance the activity of ZSM-23 include the use of the following in the reaction mixtures for preparing ZSM-23: potassium ions; precipitated silica particles as sources of silica; and spray dried precipitated silica/alumina particles as sources of silica and alumina. The catalytic stability of alumina bound ZSM-23 catalysts is especially enhanced by steaming. Particular reactions which can be catalyzed by ZSM-23 made according to methods described herein include the dealkylation of ethylbenzene and the alkylation of benzene with ethylene.

    摘要翻译： 提供了一种从含有（a）有机氮化合物如胺或季铵化合物的组合的混合有机导向剂的反应混合物制备ZSM-5以外的沸石的方法，（b） 醇和/或二醇。 通过该方法合成的特定沸石包括ZSM-22和ZSM-23。 使用醇或二醇可能会抑制ZSM-5的结构。 特别是当用于制备ZSM-23时，该方法能够制备更小的微晶尺寸的更具催化活性的ZSM-23，并且还能够使用较低的结晶温度。 用于制备ZSM-23的特殊的混合有机导向剂是（a）吡咯烷和（b）乙醇或乙二醇的组合。 提高ZSM-23活性的其他因素包括在制备ZSM-23：钾离子的反应混合物中使用以下物质： 沉淀二氧化硅颗粒作为二氧化硅源; 和喷雾干燥的沉淀二氧化硅/氧化铝颗粒作为二氧化硅和氧化铝的来源。 氧化铝结合的ZSM-23催化剂的催化稳定性通过蒸汽特别提高。 根据本文所述方法制备的可以由ZSM-23催化的特定反应包括乙苯的脱烷基化和苯与乙烯的烷基化。