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    Catalytic cracking process using high equilibrium activity additive catalyst
    11.
    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

    Applicant: Pochen Chu ,  Sadi Mizrahi

    Inventor： Pochen Chu ,  Sadi Mizrahi

    IPC: B01J29/40 ,  C10G11/05

    CPC classification number: B01J29/40 ,  C10G11/05 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42

    Abstract: 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.

    Abstract translation: 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。

    Layered silicate
    16.
    发明授权
    Layered silicate 失效
    层状硅酸盐

    公开(公告)号：US5236681A

    公开(公告)日：1993-08-17

    申请号：US443692

    申请日：1989-11-30

    Applicant: Pochen Chu ,  Garry W. Kirker ,  Sowmithri Krishnamurthy ,  James C. Vartuli

    Inventor： Pochen Chu ,  Garry W. Kirker ,  Sowmithri Krishnamurthy ,  James C. Vartuli

    IPC: C01B33/38

    CPC classification number: C01B33/38

    Abstract: There is provided a method for synthesizing layered silicates such as magadiite and kenyaite. The source of silica used in this method is freshly precipitated from a silicate solution. For example, this silica source may be obtained by treating an aqueous solution of sodium silicate with sulfuric acid to form an amorphous silica precipitate. This silica precipitate is not dried to reduce its activity prior to use.

    Abstract translation: 提供了一种合成层状硅酸盐的方法，例如magadiite和kenyaite。 在这种方法中使用的二氧化硅源从硅酸盐溶液中新鲜沉淀出来。 例如，可以通过用硫酸处理硅酸钠水溶液以形成无定形二氧化硅沉淀物来获得该二氧化硅源。 该二氧化硅沉淀物在使用前不被干燥以降低其活性。

    Zeolite synthesis using an alcohol or like molecules
    17.
    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

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

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

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

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

    Abstract: 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.

    Abstract translation: 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。

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