Zeolite synthesis using an alcohol or like molecule
    3.
    发明授权
    Zeolite synthesis using an alcohol or like molecule 失效
    使用醇或类似分子的沸石合成

    公开(公告)号:US5063038A

    公开(公告)日:1991-11-05

    申请号:US91612

    申请日:1987-08-31

    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 combination 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的共形。 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来源; 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。

    Zeolite synthesis using an alcohol or like molecules
    4.
    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

    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。

    Layered cracking catalyst and method of manufacture and use thereof
    5.
    发明授权
    Layered cracking catalyst and method of manufacture and use thereof 失效
    层状裂化催化剂及其制造方法和用途

    公开(公告)号:US5179054A

    公开(公告)日:1993-01-12

    申请号:US735225

    申请日:1991-07-24

    IPC分类号: B01J33/00 C10G11/05

    摘要: A layered catalyst suited to the catalytic cracking of heavy feeds comprises a core and a shell. The shell comprises at least 5 wt % of at least 1 molecular sieve having openings of at least 8 angstroms. The core comprises at least 10 wt % of at least 1 molecular sieve having openings comprising a 12 or less-membered ring and has a reduced, if any, content of said molecular sieve having openings of at least 8 angstroms, relative to its concentration in the shell. Suitable molecular sieve materials having openings of at least 8 angstroms include MCM-41, VPI-5, MCM-9 and layered metal oxides, e.g., pillared clays. The required molecular sieve of the core can include zeolite Y, Ultrastable Y or intermediate pore size zeolites such as ZSM-5. The shell which may further contain a metals passivator can act as a metals sink, and can remove metals from the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell material. The shell may also comprise an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 适用于重料的催化裂化的层状催化剂包括核和壳。 该壳包含至少5重量%的具有至少8埃的开口的至少1个分子筛。 核心包含至少10重量%的具有包含12个或更少元环的开口的至少1个分子筛,并且具有至少8埃的开口的所述分子筛的含量降低(如果有的话),相对于其浓度 贝壳。 具有至少8埃开口的合适的分子筛材料包括MCM-41,VPI-5,MCM-9和层状金属氧化物,例如柱状粘土。 核心所需的分子筛可包括沸石Y,超稳定Y或中等孔径沸石如ZSM-5。 可以进一步包含金属钝化剂的壳体可以用作金属沉槽,并且可以通过磨损从单元中去除金属。 催化剂优选通过形成核心然后用壳材料涂覆或包封核心来制备。 外壳还可以包含捕获金属的无定形稀土氧化物,氧化铝和磷酸铝复合材料的可磨损涂层。

    Catalytic cracking using a layered cracking catalyst
    6.
    发明授权
    Catalytic cracking using a layered cracking catalyst 失效
    使用层状裂化催化剂进行催化裂化

    公开(公告)号:US5286370A

    公开(公告)日:1994-02-15

    申请号:US808487

    申请日:1991-12-17

    IPC分类号: B01J33/00 C10G11/05 B01J29/06

    摘要: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals form the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 层状催化剂在分子筛含量降低的壳层内含有至少一种,优选三种分子筛组分的核心。 优选的催化剂由大孔分子筛的芯,优选脱铝的Y型沸石,形状选择性石蜡裂解/异构化组分,优选HZSM-5和形状选择性脂族芳构化组分,优选镓ZSM-5组成, 在富含氧化铝的基体的壳内。 外壳可以从正在加工的进料中捕获金属,它可以作为金属沉头,并可以通过磨损去除单元的金属。 催化剂优选通过形成核心然后用具有降低的分子筛含量的壳体涂覆或包封核心来制备。 壳可能含有柱状粘土或其他非常大的孔裂解组分。 壳可以是非晶态稀土氧化物,氧化铝和磷酸铝复合物的可磨损涂层,其捕获金属。

    Layered cracking catalyst and method of manufacture and use thereof
    7.
    发明授权
    Layered cracking catalyst and method of manufacture and use thereof 失效
    层状裂化催化剂及其制造方法和用途

    公开(公告)号:US5077253A

    公开(公告)日:1991-12-31

    申请号:US516482

    申请日:1990-05-01

    IPC分类号: B01J33/00 C10G11/05

    摘要: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals from the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 层状催化剂在分子筛含量降低的壳层内含有至少一种,优选三种分子筛组分的核心。 优选的催化剂由大孔分子筛的芯,优选脱铝的Y型沸石,形状选择性石蜡裂解/异构化组分,优选HZSM-5和形状选择性脂族芳构化组分,优选镓ZSM-5, 在富含氧化铝的基体的壳内。 外壳可以从正在加工的进料中捕获金属,它可以作为金属水槽,并可以通过磨损从设备中去除金属。 催化剂优选通过形成核心然后用具有降低的分子筛含量的壳体涂覆或包封核心来制备。 壳可能含有柱状粘土或其他非常大的孔裂解组分。 壳可以是非晶态稀土氧化物,氧化铝和磷酸铝复合物的可磨损涂层,其捕获金属。

    Production of ethylbenzene
    8.
    发明授权
    Production of ethylbenzene 失效
    生产乙苯

    公开(公告)号:US5334795A

    公开(公告)日:1994-08-02

    申请号:US967954

    申请日:1992-10-27

    IPC分类号: C07C2/66

    CPC分类号: C07C2/66 C07C2529/70

    摘要: Ethylbenzene is produced by the alkylation of benzene with ethylene in the presence of an alkylation catalyst having a particular structure defined by its X-ray diffraction pattern. A preferred catalyst is the zeolite MCM-22. The process is typically carried out at a temperature of 300.degree. to 1000.degree. F. but the catalyst provides sufficient activity for the reaction to be carried out at temperatures below 700.degree. F. Liquid phase operation is preferred, giving a lower yield of polyethylated products. The use of the selected catalyst also results in a reduction of the xylene impurity level to values below 500 ppm in the product.

    摘要翻译: 在具有由其X射线衍射图形定义的特定结构的烷基化催化剂存在下,通过苯与乙烯的烷基化生产乙苯。 优选的催化剂是沸石MCM-22。 该方法通常在300至1000°F的温度下进行,但催化剂提供足够的活性以使反应在低于700°F的温度下进行。液相操作是优选的,从而降低聚乙烯化产物的产率 。 使用所选择的催化剂还导致二甲苯杂质水平降低到产品中低于500ppm的值。

    Zeolite-clay composition and uses thereof

    公开(公告)号:US5140949A

    公开(公告)日:1992-08-25

    申请号:US758668

    申请日:1991-09-12

    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.