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    Heat-resistant low-silica zeolite, and process for production and application thereof
    1.
    发明授权
    Heat-resistant low-silica zeolite, and process for production and application thereof 失效
    耐热低硅沸石及其生产和应用的方法

    公开(公告)号：US6036939A

    公开(公告)日：2000-03-14

    申请号：US919163

    申请日：1997-08-28

    申请人： Hajime Funakoshi ,  Yoshinori Shirakura ,  Shunsuke Yatsunami ,  Kazuaki Yamamoto ,  Nobuhiro Ogawa ,  Takashi Mori ,  Atsushi Harada

    发明人： Hajime Funakoshi ,  Yoshinori Shirakura ,  Shunsuke Yatsunami ,  Kazuaki Yamamoto ,  Nobuhiro Ogawa ,  Takashi Mori ,  Atsushi Harada

    IPC分类号： B01D53/04 ,  B01J20/18 ,  C01B13/02 ,  C01B39/22 ,  B01D53/047

    CPC分类号： B01D53/02 ,  B01J20/186 ,  C01B13/027 ,  C01B39/22 ,  B01D2253/1085 ,  B01D2253/25 ,  B01D2253/306 ,  B01D2256/12 ,  B01D2257/102 ,  B01D53/047 ,  C01B2210/0046 ,  Y02C10/08 ,  Y10S423/21

    摘要： A novel heat-resistant low-silica zeolite, an industrial production process, and uses of the low-silica zeolite are provided. The heat-resistant low-silica zeolite contains Si and Al in a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 ranging from 1.9 to 2.1, and has sodium and/or potassium as metal cation, wherein the low-silica zeolite contains low-silica faujasite type zeolite at a content of not lower than 88%, and has a thermal decomposition temperature ranging from 870.degree. C. to 900.degree. C. in the air. The process for producing the heat-resistant low-silica zeolite comprises mixing a solution containing an aluminate with another solution containing a silicate, allowing the resulting mixture to gel, and aging the resulting gel, at the temperature of from 0.degree. C. to 60.degree. C., to prepare a slurry having a viscosity ranging from 10 to 10000 cp and containing amorphous aluminosilicate having a specific surface area of not less than 10 m.sup.2 /g with an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio ranging from 1.9 to 2.1; and subsequently crystallizing the aluminosilicate. The low-silica zeolite ion-exchanged with lithium or an alkaline earth metal is useful for gas separation.

    摘要翻译： 提供了一种新型耐热低硅沸石，工业生产方法和低硅沸石的用途。 该耐热低硅沸石含有SiO 2 / Al 2 O 3的摩尔比为1.9-2.1的Si和Al，并且具有作为金属阳离子的钠和/或钾，其中低硅沸石含有低硅石八面沸石型沸石 含量不低于88％，并且在空气中的热分解温度为870℃至900℃。 制造耐热低硅石沸石的方法包括将含有铝酸盐的溶液与含有硅酸盐的另一种溶液混合，使所得混合物凝胶化，并将所得凝胶老化，在0℃至60℃ 以制备粘度范围为10-10000cp并含有比表面积不小于10m 2 / g的无定形硅酸铝的浆料，SiO 2 / Al 2 O 3摩尔比为1.9-2.1; 随后使铝硅酸盐结晶。 与锂或碱土金属离子交换的低硅石沸石可用于气体分离。

    Fine low silica faujasite type zeolite and process for its production
    2.
    发明授权
    Fine low silica faujasite type zeolite and process for its production 有权
    细二氧化硅八面沸石型沸石及其生产工艺

    公开(公告)号：US06306363B1

    公开(公告)日：2001-10-23

    申请号：US09320830

    申请日：1999-05-26

    申请人： Hajime Funakoshi ,  Yoshinori Shirakura

    发明人： Hajime Funakoshi ,  Yoshinori Shirakura

    IPC分类号： C01B3922

    CPC分类号： C01B39/22 ,  Y10S423/21

    摘要： A fine low silica faujasite type zeolite of high purity, having a faujasite single phase as measured by X-ray diffractometry, wherein the SiO2/Al2O3 molar ratio is from 1.9 to 2.1, the water adsorption in the form of Na-type is at least 35.0%, and the primary particle size is at least 0.05 &mgr;m and less than 1.0 &mgr;m. A process for producing the low silica faujasite type zeolite by mixing and gelling a solution containing an aluminate and a solution containing a silicate, followed by aging and crystallization, wherein after the gelling and/or at the initial stage of the aging, a solution having a set composition and preliminary aged at recited conditions is added in an amount of from 0.03 to 10% as Al2O3.

    摘要翻译： 通过X射线衍射测定的具有八面沸石单相的高纯度的微细二氧化硅八面沸石型沸石，其中SiO 2 / Al 2 O 3摩尔比为1.9〜2.1，Na型形式的水吸附至少为 35.0％，一次粒径为0.05μm以上且小于1.0μm。 通过混合和胶凝含有铝酸盐和含硅酸盐的溶液，随后进行老化和结晶的方法来制备低硅石八面沸石型沸石，其中在老化和/或在初始阶段之后，将具有 在所述条件下的组合物和预熟化作为Al 2 O 3以0.03至10％的量加入。

    Low-silica faujasite type zeolite and method for producing the same
    3.
    发明授权
    Low-silica faujasite type zeolite and method for producing the same 有权
    低二氧化硅八面沸石型沸石及其制造方法

    公开(公告)号：US5993773A

    公开(公告)日：1999-11-30

    申请号：US198601

    申请日：1998-11-24

    申请人： Hajime Funakoshi ,  Yoshinori Shirakura

    发明人： Hajime Funakoshi ,  Yoshinori Shirakura

    IPC分类号： C01B21/04 ,  B01J20/18 ,  C01B39/20 ,  C01B39/22

    CPC分类号： C01B39/22 ,  Y10S423/21

    摘要： Disclosed are high purity low-silica faujasite type zeolite showing a faujasite single phase on X-ray diffraction, having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 1.9 to 2.1 and a water adsorption of 35.0% by weight or more when converted to the Na type, and comprising particles having smaller primary particle size and particles having larger primary particle size, wherein the primary particle size of the smaller particles is from 1 .mu.m to 8 .mu.m, the primary particle size of the larger particles is from 5 .mu.m to 15 .mu.m, and the particles having smaller primary particle size accounts for 90% or more of the total particle number; and a method for producing low-silica faujasite type zeolite having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 1.9 to 2.1 by mixing an aluminate-containing solution with a silicate-containing solution to allow the resulting solution to gel, followed by aging and crystallization, wherein besides zeolite formed, "zeolite" is added before the termination of the aging, thereby producing the low-silica faujasite type zeolite in high purity on a large scale for a short period of time.

    摘要翻译： 公开了在X射线衍射上显示八面沸石单相的高纯度低二氧化硅八面沸石型沸石，SiO 2 / Al 2 O 3摩尔比为1.9〜2.1，转化为Na型时的水吸附为35.0重量％以上， 并且包含一次粒径较小的颗粒和一次粒径较大的颗粒，其中较小颗粒的一次粒径为1μm至8μm，较大颗粒的一次粒径为5μm至15μm 具有较小一次粒径的粒子占总粒子数的90％以上; 以及通过将含铝酸盐的溶液与含硅酸盐的溶液混合以使所得溶液凝胶化，然后进行老化和结晶的方法，制备SiO 2 / Al 2 O 3摩尔比为1.9至2.1的低二氧化硅八面沸石型沸石的方法，其中 除了形成沸石之外，在老化结束之前加入“沸石”，从而在短时间内大量生产高纯度的低硅石八面沸石型沸石。

    Amorphous aluminosilicate and process for producing the same
    4.
    发明授权
    Amorphous aluminosilicate and process for producing the same 失效
    无定形硅铝酸盐及其制造方法

    公开(公告)号：US5919427A

    公开(公告)日：1999-07-06

    申请号：US638199

    申请日：1996-04-26

    申请人： Atsushi Harada ,  Hajime Funakoshi ,  Takeshi Ozawa

    发明人： Atsushi Harada ,  Hajime Funakoshi ,  Takeshi Ozawa

    IPC分类号： C01B33/26

    CPC分类号： C01B33/26

    摘要： Disclosed are an amorphous aluminosilicate wherein the total volume of the pores having a diameter of from 10.sup.3 angstroms to 10.sup.5 angstroms as measured by the mercury penetration method accounts for at least 60% of the total volume of all the pores detected by the mercury penetration method, and the total volume of the pores having a diameter of from 20 angstroms to 120 angstroms as measured by the nitrogen adsorption method is 0.01 cc/g or larger, and a process for producing the amorphous aluminosilicate.

    摘要翻译： 公开了一种无定形硅铝酸盐，其中通过汞渗透法测量的直径为103埃至105埃的孔的总体积占通过汞渗透法检测的所有孔的总体积的至少60％ 并且通过氮吸附法测量的直径为20埃至120埃的孔的总体积为0.01cc / g或更大，以及制备无定形硅铝酸盐的方法。