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35 条记录 (耗时 0.015 秒)

    Extrusion of silica-rich solids
    21.
    发明授权
    Extrusion of silica-rich solids 失效
    挤出富二氧化硅固体

    公开(公告)号：US4582815A

    公开(公告)日：1986-04-15

    申请号：US628680

    申请日：1984-07-06

    申请人： Emmerson Bowes

    发明人： Emmerson Bowes

    IPC分类号： C01B33/12 ,  B01J20/10 ,  B01J20/18 ,  B01J21/00 ,  B01J21/08 ,  B01J29/00 ,  B01J29/06 ,  B01J29/08 ,  B01J37/00 ,  C01B39/00 ,  C01B39/04 ,  C01B39/20 ,  C01B39/26 ,  C01B39/30 ,  C01B39/32 ,  C01B39/34 ,  C01B39/36 ,  C01B39/42 ,  C01B39/44 ,  B01J21/12

    CPC分类号： B01J37/0009 ,  B01J20/183 ,  B01J29/084 ,  B01J2229/42

    摘要： The present invention is directed to a method for extruding silica-rich solids. The method comprises mixing silica-rich solids with water in an alkali metal base or basic salt followed by mulling and extruding and subsequently drying the extrudate whereby the dried extrudate has a crush strength superior to that of the prior art. The silica-rich solids can be silica alone, zeolite alone or a mixture thereof. The alkali metal can be sodium hydroxide. The invention is also directed to a product which has a special attribute in that they have sufficient integrity to withstand treatments with acids so that it is now possible to steam, acid extract, or calcine such extrudates. The catalyst can be used in hydrocarbon conversions such as hydrocracking, isomerization, hydrogenation, dehydrogenation, polymerization, reforming, catalytic cracking, or catalytic hydrocracking.The invention also relates to a method for extruding silica-rich solids which comprises substituting an alkali metal for hydrogen in silanol groups on outside surfaces of the silica-rich solids, mulling and extruding the substituted silica-rich solids and drying the extrudate whereby the dried extrudate has a crush strength superior to that of the prior art.The invention is also directed to a method for increasing the silica to metal ratio of a zeolite. The method comprises mixing silica-rich solids with water and an alkali metal base or basic salt, mulling and extruding the silica-rich mixture, drying the extrudate, ion exchanging the extrudate and recovering the catalyst which can be substantially metal free.

    摘要翻译： 本发明涉及一种用于挤出富含二氧化硅的固体的方法。 该方法包括将富含硅的固体与水在碱金属碱或碱性盐中混合，然后研磨和挤出并随后干燥挤出物，由此干燥的挤出物具有优于现有技术的挤压强度。 富含二氧化硅的固体可以是二氧化硅，单独的沸石或它们的混合物。 碱金属可以是氢氧化钠。 本发明还涉及一种具有特殊属性的产品，因为它们具有足够的完整性以经受酸处理，使得现在可以蒸汽，酸提取或煅烧这样的挤出物。 催化剂可用于烃转化，如加氢裂化，异构化，氢化，脱氢，聚合，重整，催化裂化或催化加氢裂化。 本发明还涉及一种用于挤出富含二氧化硅的固体的方法，该方法包括用富含二氧化硅的固体的外表面上的硅烷醇基中的碱金属取代氢，研磨和挤出取代的富含二氧化硅的固体并干燥挤出物，由此干燥 挤出物具有优于现有技术的挤压强度。 本发明还涉及一种提高沸石的二氧化硅与金属比例的方法。 该方法包括将富含二氧化硅的固体与水和碱金属碱或碱性盐混合，研磨和挤出富含二氧化硅的混合物，干燥挤出物，离子交换挤出物并回收可基本上不含金属的催化剂。

    Preparation of crystalline silicate zeolite Beta
    22.
    发明授权
    Preparation of crystalline silicate zeolite Beta 失效
    结晶硅酸盐沸石β的制备

    公开(公告)号：US4554145A

    公开(公告)日：1985-11-19

    申请号：US600681

    申请日：1984-04-16

    申请人： Mae K. Rubin

    发明人： Mae K. Rubin

    IPC分类号： C10G49/08 ,  B01J29/00 ,  B01J29/70 ,  C01B39/34 ,  C01B39/48 ,  C07C1/00 ,  C07C5/27 ,  C07C9/00 ,  C07C67/00 ,  C01B33/28

    CPC分类号： C01B39/48 ,  B01J29/7007 ,  Y10S423/27

    摘要： This invention relates to a new method for synthesis of zeolite Beta, to the zeolite Beta product of that new method and to use of said zeolite Beta prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion. In the disclosed method for preparing zeolite Beta a dibenzyl-1,4-diazabicyclo [2.2.2] octane compound is added to the synthesis reaction mixture.

    摘要翻译： 本发明涉及一种用于合成沸石β的新方法，该新方法的沸石β型产物和使用根据本文制备的所述沸石β作为有机化合物的催化剂。 烃化合物，转化。 在公开的制备沸石β的方法中，将二苄基-1,4-二氮杂双环[2.2.2]辛烷化合物加入合成反应混合物中。

    Synthesis of zeolite ZSM-4
    25.
    发明授权
    Synthesis of zeolite ZSM-4 失效
    沸石ZSM-4的合成

    公开(公告)号：US4021447A

    公开(公告)日：1977-05-03

    申请号：US572979

    申请日：1975-04-30

    申请人： Mae K. Rubin ,  Charles J. Plank ,  Edward J. Rosinski

    发明人： Mae K. Rubin ,  Charles J. Plank ,  Edward J. Rosinski

    IPC分类号： B01J29/70 ,  C01B39/34 ,  C01B33/28 ,  C07D295/00

    CPC分类号： C01B39/34 ,  B01J29/7011 ,  Y10S423/26

    摘要： As synthesized by previous methods, ZSM-4 zeolites are crystallized in the presence of substantial amounts of a tetramethylammonium hydroxide or halide. When synthesized in this way, they contain the tetramethylammonium cation as well as a metal cation such as sodium. To obtain a more catalytically active form, the sodium ion must be exchanged to very low levels. Catalysts prepared in this manner have been found to be quite low in stability. By synthesizing these zeolites in the presence of pyrrolidine or choline salts, ZSM-4 having a different organic nitrogen containing cation but the same crystal structure as previously prepared ZSM-4 is obtained. Catalysts made therefrom are, surprisingly, much more stable than those prepared from ZSM-4 made by previous methods.

    摘要翻译： 通过以前的方法合成，ZSM-4沸石在大量的四甲基氢氧化铵或卤化物存在下结晶。 当以这种方式合成时，它们含有四甲基铵阳离子以及诸如钠的金属阳离子。 为了获得更具催化活性的形式，钠离子必须交换到非常低的水平。 发现以这种方式制备的催化剂的稳定性相当低。 通过在吡咯烷或胆碱盐的存在下合成这些沸石，得到具有不同有机含氮阳离子但具有与先前制备的ZSM-4相同的晶体结构的ZSM-4。 令人惊奇地，由其制备的催化剂比由先前方法制备的ZSM-4制备的催化剂更加稳定。

    Method for producing MAZ-type zeolite
    26.
    发明授权
    Method for producing MAZ-type zeolite 有权
    生产MAZ型沸石的方法

    公开(公告)号：US09546096B2

    公开(公告)日：2017-01-17

    申请号：US14414166

    申请日：2013-07-16

    申请人： UniZeo Co., Ltd. ,  THE UNIVERSITY OF TOKYO

    发明人： Keiji Itabashi ,  Tatsuya Okubo ,  Akari Ogawa ,  Shanmugam Palani Elangovan

    IPC分类号： C01B39/34 ,  B01J37/10 ,  B01J20/18 ,  B01J20/30 ,  B01J29/70 ,  B01J37/04 ,  B01J37/08

    CPC分类号： C01B39/34 ,  B01J20/18 ,  B01J20/3085 ,  B01J29/7011 ,  B01J37/04 ,  B01J37/08 ,  B01J37/10

    摘要： Provided is a method for producing a MAZ-type zeolite, the method having an environmental impact which has been reduced as much as possible while not using a structure-directing agent as far as possible. In the method for producing a MAZ-type zeolite according to the present invention: (1) a silica source, an alumina source, an alkali source and water are mixed so as to form a reaction mixture that has a composition represented by a specific molar ratio; (2) a MAZ-type zeolite, which has a SiO2/Al2O3 ratio of 5-10, has an average particle diameter of at least 0.1 μm and does not contain an organic compound, is added, as a seed crystal, into the reaction mixture in an amount of 0.1-30 weight % relative to the silica components in the reaction mixture; and (3) the reaction mixture, into which the seed crystal has been added, is heated at 80-200° C. in a closed system.

    摘要翻译： 本发明提供一种MAZ型沸石的制造方法，尽可能不使用结构导向剂，尽可能减少环境影响的方法。 在本发明的MAZ型沸石的制造方法中，将（1）二氧化硅源，氧化铝源，碱源和水混合，形成具有由特定摩尔比表示的组成的反应混合物 比; （2）将SiO 2 / Al 2 O 3比例为5-10的MAZ型沸石作为晶种加入到反应中，平均粒径为0.1μm以上，不含有机化合物 混合物的量相对于反应混合物中的二氧化硅组分为0.1-30重量％; 和（3）将加入晶种的反应混合物在封闭的体系中在80-200℃下加热。

    METHOD FOR PRODUCING MAZ-TYPE ZEOLITE
    27.
    发明申请
    METHOD FOR PRODUCING MAZ-TYPE ZEOLITE 有权
    生产MAZ型沸石的方法

    公开(公告)号：US20150210556A1

    公开(公告)日：2015-07-30

    申请号：US14414166

    申请日：2013-07-16

    申请人： UniZeo Co., Ltd. ,  THE UNIVERSITY OF TOKYO

    发明人： Keiji Itabashi ,  Tatsuya Okubo ,  Akari Ogawa ,  Shanmugam Palani Elangovan

    IPC分类号： C01B39/34 ,  B01J37/08 ,  B01J29/70 ,  B01J37/04 ,  B01J20/18 ,  B01J20/30

    CPC分类号： C01B39/34 ,  B01J20/18 ,  B01J20/3085 ,  B01J29/7011 ,  B01J37/04 ,  B01J37/08 ,  B01J37/10

    摘要： Provided is a method for producing a MAZ-type zeolite, the method having an environmental impact which has been reduced as much as possible whilst not using a structure-directing agent as far as possible. In the method for producing a MAZ-type zeolite according to the present invention: (1) a silica source, an alumina source, an alkali source and water are mixed so as to form a reaction mixture that has a composition represented by a specific molar ratio; (2) a MAZ-type zeolite, which has a SiO2/Al2O3 ratio of 5-10, has an average particle diameter of at least 0.1 μm and does not contain an organic compound, is added, as a seed crystal, into the reaction mixture in an amount of 0.1-30 weight % relative to the silica components in the reaction mixture; and (3) the reaction mixture, into which the seed crystal has been added, is heated at 80-200° C. in a closed system.

    摘要翻译： 提供了一种制造MAZ型沸石的方法，该方法尽可能地减少了环境影响，同时尽可能不使用结构导向剂。 在本发明的MAZ型沸石的制造方法中，将（1）二氧化硅源，氧化铝源，碱源和水混合，形成具有由特定摩尔比表示的组成的反应混合物 比; （2）将SiO 2 / Al 2 O 3比例为5-10的MAZ型沸石作为晶种加入到反应中，平均粒径为0.1μm以上，不含有机化合物 混合物的量相对于反应混合物中的二氧化硅组分为0.1-30重量％; 和（3）将加入晶种的反应混合物在封闭的体系中在80-200℃下加热。

    Modified zeolite omega and processes for preparing and using same
    29.
    发明授权
    Modified zeolite omega and processes for preparing and using same 失效
    改性沸石欧米加及其制备和使用方法

    公开(公告)号：US5139761A

    公开(公告)日：1992-08-18

    申请号：US795911

    申请日：1992-01-06

    申请人： Vinayan Nair ,  Donald F. Best

    发明人： Vinayan Nair ,  Donald F. Best

    IPC分类号： B01J29/70 ,  C01B39/34

    CPC分类号： B01J29/7011 ,  B01J2229/26 ,  B01J2229/36 ,  B01J2229/42

    摘要： Forms of zeolite Omega synthesized by hydrothermal crystallization from reaction systems containing alkali metal cations and organic templating agents, modified by calcination in air, ion-exchange, steam calcination and treatment with a low-pH aqueous ammonium ion solution, are significantly improved with respect to surface area, catalytic activity and adsorption capacities for large molecular species.

    摘要翻译： 通过由含有碱金属阳离子和有机模板剂的反应体系通过水热结晶合成的沸石的形式，通过在空气中煅烧，离子交换，蒸汽煅烧和用低pH水溶液的铵离子溶液处理而被改进，相对于 表面积，催化活性和大分子物种的吸附能力。