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    Synthesis of zeolite ZSM-5
    5.
    发明授权
    Synthesis of zeolite ZSM-5 失效
    沸石ZSM-5的合成

    公开(公告)号：US4526879A

    公开(公告)日：1985-07-02

    申请号：US520746

    申请日：1983-08-05

    申请人： Francis G. Dwyer ,  Pochen Chu

    发明人： Francis G. Dwyer ,  Pochen Chu

    IPC分类号： B01J29/40 ,  C01B39/40 ,  C01B33/28

    CPC分类号： C01B39/40 ,  B01J29/40 ,  B01J2229/26 ,  B01J2229/42 ,  Y10S423/22

    摘要： As synthesized by conventional technique, zeolite ZSM-5 is crystallized in the presence of substantial amount of tetraalkylammonium cations, the alkyl groups of which contain 2 to 5 carbon atoms, such as, for example, tetrapropylammonium. When synthesized in the conventional way, ZSM-5 contains tetraalkylammonium cations as well as a substantial amount of sodium ions. To obtain a more catalytically active form of ZSM-5, the sodium ions must be exchanged to very low levels. By synthesizing zeolite ZSM-5 according to the present method, i.e., in the presence of a combination of an amine and a halide in the presence of a mutual solvent and with a specifically defined reaction mixture composition, ZSM-5 having different organic nitrogen-containing cations but the same crystal structure as conventionally prepared ZSM-5 is obtained. The ZSM-5 prepared in accordance herewith is very low in sodium content as synthesized and has a crystal size of from about 0.05 microns to about 20 microns.

    摘要翻译： 如通过常规技术合成的，沸石ZSM-5在存在大量四烷基铵阳离子（其烷基含有2至5个碳原子的四烷基铵阳离子）存在下结晶，例如四丙基铵。 当以常规方式合成时，ZSM-5含有四烷基铵阳离子以及大量的钠离子。 为了获得更具催化活性的ZSM-5形式，钠离子必须交换到非常低的水平。 通过根据本发明的方法合成沸石ZSM-5，即在相互溶剂存在下，在胺和卤化物的组合存在下，与特定定义的反应混合物组合物，具有不同有机氮气的ZSM-5， 得到与常规制备的ZSM-5相同的晶体结构。 根据本文制备的ZSM-5的钠含量非常低，并且具有约0.05微米至约20微米的晶体尺寸。

    Selective zeolite sorption of group V-B element hydrides and derivatives thereof
    9.
    发明授权
    Selective zeolite sorption of group V-B element hydrides and derivatives thereof 失效
    V-B族元素氢化物及其衍生物的选择性沸石吸附

    公开(公告)号：US4401572A

    公开(公告)日：1983-08-30

    申请号：US274971

    申请日：1981-06-18

    申请人： Pochen Chu ,  Francis G. Dwyer

    发明人： Pochen Chu ,  Francis G. Dwyer

    IPC分类号： B01D15/00 ,  B01D53/02 ,  C02F1/28 ,  B01D15/04

    CPC分类号： B01D15/00 ,  B01D53/02 ,  C02F1/281

    摘要： A method for selectively sorbing Group V-B element hydrides and derivatives thereof from an aqueous solution containing same which comprises contacting said solution under ion-exchange conditions with a crystalline zeolite material having a pore dimension greater than about 5 Angstroms, a Constraint Index between 1 and 12 and a SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio greater than 12.

    摘要翻译： 从含有它的水溶液中选择性吸附VB族元素氢化物及其衍生物的方法，其包括在离子交换条件下使所述溶液与孔尺寸大于约5埃的结晶沸石材料接触，约束指数为1至12 和SiO 2 / Al 2 O 3摩尔比大于12。