Synthesis of zeolite ZSM-4
    1.
    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

    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。

    Crystalline zeolite and method of preparing same
    2.
    发明授权
    Crystalline zeolite and method of preparing same 失效
    结晶沸石及其制备方法

    公开(公告)号:US4016245A

    公开(公告)日:1977-04-05

    申请号:US528061

    申请日:1974-11-29

    摘要: A new crystalline zeolite, designated ZSM-35, a method of making same and the use thereof in catalytic conversion of hydrocarbons is the subject of this application. The new zeolite has a composition, in the anhydrous state, expressed in terms of mole ratios of oxides as follows:(0.3-2.5)R.sub.2 O:(0-0.8)M.sub.2 O:Al.sub.2 O.sub.3 :>8 SiO.sub.2wherein R is an organic nitrogen-containing cation and M is an alkali metal cation, and is characterized by a specified X-ray powder diffraction pattern.

    摘要翻译: 命名为ZSM-35的新型结晶沸石,其制备方法及其在烃的催化转化中的应用是本申请的主题。 新沸石具有无水状态的组成,以氧化物的摩尔比表示如下:

    Method for producing zeolites
    3.
    发明授权

    公开(公告)号:US4175114A

    公开(公告)日:1979-11-20

    申请号:US841622

    申请日:1977-10-13

    摘要: As synthesized by previous methods, ZSM-5 or ZSM-11 zeolites are crystallized in the presence of substantial amounts of a nitrogen-containing compound. When synthesized in this way, they contain an organic ammonium cation as well as a metal cation such as sodium. To obtain a more active form, the sodium ion must be exchanged out. Such exchange, especially with ZSM-5 and ZSM-11, is difficult unless there is calcination of the zeolite to remove the obstructing organo compounds. By making these zeolites in the presence of (1) seeds of the desired zeolite, (2) mixtures of them with ammonium hydroxide and/or alcohol, (3) the alcohol per se or (4) mixtures of the alcohol with ammonium hydroxide, a product substantially deficient in organic ammonium cation is obtained. These products can be exchanged directly without any calcination.

    Method for producing zeolites
    6.
    发明授权
    Method for producing zeolites 失效
    生产沸石的方法

    公开(公告)号:US5102644A

    公开(公告)日:1992-04-07

    申请号:US701314

    申请日:1985-02-13

    IPC分类号: B01J29/40 C01B39/36 C01B39/38

    摘要: A method of producing zeolites particularly ZSM-5 and ZSM-11 by strictly controlling the composition of the forming bath such that no organic is required. In a preferred embodiment the forming bath can contain seeds, lower aliphatic alcohols and/or ammonium hydroxide. The as-crystallized product has no organic in its pore structures and has a relatively low silica to alumina ratio.

    摘要翻译: 通过严格控制成型浴的组成使得不需要有机物来生产特别是ZSM-5和ZSM-11的沸石的方法。 在优选的实施方案中,成型浴可以含有种子,低级脂族醇和/或氢氧化铵。 结晶产物在其孔结构中没有有机物,并且具有相对较低的二氧化硅与氧化铝的比例。

    Method for producing zeolites
    7.
    发明授权
    Method for producing zeolites 失效
    生产沸石的方法

    公开(公告)号:US4994251A

    公开(公告)日:1991-02-19

    申请号:US317735

    申请日:1981-11-03

    IPC分类号: B01J29/40 C01B39/36 C01B39/38

    摘要: As synthesized by previous methods, ZSM-5 or ZSM-11 zeolites are crystallized in the presence of substantial amounts of a nitrogen-containing compound. When synthesized in this way, they contain an organic ammonium cation as well as a metal cation such as sodium. To obtain a more active form, the sodium ion must be exchanged out. Such exchange, especially with ZSM-5 and ZSM-11, is difficult unless there is calcination of the zeolite to remove the obstructing organo compounds. By making these zeolites in the presence of (1) seeds of the desired zeolite, (2) mixtures of them with ammonium hydroxide and/or alcohol, (3) the alcohol per se or (4) mixtures of the alcohol with ammonium hydroxide, a product substantially deficient in organic ammonium cation is obtained. These products can be exchanged directly without any calcination.

    摘要翻译: 通过以前的方法合成,ZSM-5或ZSM-11沸石在大量含氮化合物的存在下结晶。 当以这种方式合成时,它们含有有机铵阳离子以及诸如钠的金属阳离子。 要获得更活跃的形式,必须将钠离子交换出来。 这种交换,尤其是与ZSM-5和ZSM-11的交换是困难的,除非有煅烧沸石去除阻碍的有机化合物。 在(1)所需沸石的种子存在下制备这些沸石,(2)它们与氢氧化铵和/或醇的混合物,(3)醇本身或(4)醇与氢氧化铵的混合物, 获得了有机铵阳离子基本上不足的产物。 这些产品可直接进行交换而无需任何煅烧。

    Organic compound conversion over ZSM-23
    8.
    发明授权
    Organic compound conversion over ZSM-23 失效
    通过ZSM-23进行有机化合物转化

    公开(公告)号:US4104151A

    公开(公告)日:1978-08-01

    申请号:US849919

    申请日:1977-11-09

    IPC分类号: B01J29/70 B01J8/24 C07C15/02

    摘要: Catalytic conversion of organic compounds in the presence of crystalline zeolite ZSM-23, or a thermal decomposition product thereof, is provided. Zeolite ZSM-23 has a composition, in the anhydrous state, expressed in terms of mole ratios ofoxides, as follows:(0.58 to 3.4)M.sub.2/n O : Al.sub.2 O.sub.3 : (40 to 25)SiO.sub.2wherein M is at least one cation having a valence n, and is characterized by a specified X-ray powder diffraction pattern.

    摘要翻译: 提供在结晶沸石ZSM-23存在下有机化合物的催化转化,或其热分解产物。 沸石ZSM-23具有无水状态的组成,以氧化物的摩尔比表示如下:

    Method for producing zeolites
    10.
    发明授权
    Method for producing zeolites 失效
    生产沸石的方法

    公开(公告)号:US4199556A

    公开(公告)日:1980-04-22

    申请号:US23856

    申请日:1979-03-26

    摘要: As synthesized by previous methods, ZSM-5 or ZSM-11 zeolites are crystallized in the presence of substantial amounts of a nitrogen-containing compound. When synthesized in this way, they contain an organic ammonium cation as well as a metal cation such as sodium. To obtain a more active form, the sodium ion must be exchanged out. Such exchange, especially with ZSM-5 and ZSM-11, is difficult unless there is calcination of the zeolite to remove the obstructing organo compounds. By making these zeolites in the presence of (1) seeds of the desired zeolite, (2) mixtures of them with ammonium hydroxide and/or alcohol, (3) the alcohol per se or (4) mixtures of the alcohol with ammonium hydroxide, a product substantially deficient in organic ammonium cation is obtained. These products can be exchanged directly without any calcination.

    摘要翻译: 通过以前的方法合成,ZSM-5或ZSM-11沸石在大量含氮化合物的存在下结晶。 当以这种方式合成时,它们含有有机铵阳离子以及诸如钠的金属阳离子。 要获得更活跃的形式,必须将钠离子交换出来。 这种交换,尤其是与ZSM-5和ZSM-11的交换是困难的,除非有煅烧沸石去除阻碍的有机化合物。 在(1)所需沸石的种子存在下制备这些沸石,(2)它们与氢氧化铵和/或醇的混合物,(3)醇本身或(4)醇与氢氧化铵的混合物, 获得了有机铵阳离子基本上不足的产物。 这些产品可直接进行交换而无需任何煅烧。