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    • 1. 发明授权
    • Methods to improve heteroatom lattice substitution in large and extra-large pore borosilicate zeolites
    • 改进大孔径和超大孔隙硼硅酸盐沸石中杂原子晶格取代的方法
    • US06790433B2
    • 2004-09-14
    • US10274249
    • 2002-10-18
    • Cong-Yan ChenStacey I. Zones
    • Cong-Yan ChenStacey I. Zones
    • C01B3906
    • B01J29/86C01B39/026
    • The invention, in one embodiment, is a method for preparing crystalline zeolites by (a) contacting a calcined essentially aluminum free borosilicate zeolite with an aqueous acid solution, thereby producing an at least partially deboronated zeolite; (b) contacting said at least partially deboronated zeolite with a solution selected from the group consisting of an aqueous aluminum salt solution, thereby producing an aluminosilicate zeolite; an aqueous gallium salt solution, thereby producing a gallosilicate zeolite; an aqueous iron salt solution, thereby producing a ferrosilicate zeolite; and mixtures thereof; and (c) where the contacting in step (b) occurs at a pH of not greater than about 3.5. In another embodiment, the present invention provides a method for preparing crystalline zeolites by contacting a calcined essentially aluminum free large or extra-large pore borosilicate zeolite with a solution selected from the group consisting of an aqueous aluminum salt solution, thereby producing an aluminosilicate zeolite; an aqueous gallium salt solution, thereby producing a gallosilicate zeolite; an aqueous iron salt solution, thereby producing a ferrosilicate zeolite; and mixtures thereof; and where the contacting occurs at a pH of not greater than about 3.5.
    • 在一个实施方案中,本发明是通过(a)使煅烧的基本上不含铝的硼硅酸盐沸石与酸水溶液接触来制备结晶沸石的方法,从而产生至少部分脱硼的沸石; (b)使所述至少部分脱硼的沸石与选自铝盐水溶液的溶液接触,从而制备铝硅酸盐沸石; 一种镓盐水溶液,从而生产硅酸镓沸石; 一种铁盐水溶液,从而生产一种硅酸铝沸石; 及其混合物; 和(c)步骤(b)中的接触在不大于约3.5的pH下发生。 在另一个实施方案中,本发明提供了一种制备结晶沸石的方法,该方法通过将煅烧的基本上不含铝的大或超大孔硼硅酸盐沸石与选自铝盐水溶液的溶液接触,由此生产硅铝酸盐沸石; 一种镓盐水溶液,从而生产硅酸镓沸石; 一种铁盐水溶液,从而生产一种硅酸铝沸石; 及其混合物; 并且其中接触在不大于约3.5的pH下进行。
    • 4. 发明授权
    • Method for heteroatom lattice substitution in large and extra-large pore borosilicate zeolites
    • 大孔和超大孔硼硅酸盐沸石中杂原子晶格取代的方法
    • US06468501B1
    • 2002-10-22
    • US09662119
    • 2000-09-14
    • Cong-Yan ChenStacey I. Zones
    • Cong-Yan ChenStacey I. Zones
    • C01B3906
    • B01J29/86C01B39/026
    • The present invention provides a method for preparing a zeolite having lattice substituted heteroatoms. The method includes: (a) contacting a calcined borosilicate zeolite with an acid, thereby producing an at least partially deboronated zeolite; and (b) contacting the at least partially deboronated zeolite with a salt-containing aqueous solution comprising one or more salts selected from the group consisting of aluminum salt, gallium salt, and iron salt, thereby producing a silicate or borosilicate zeolite having a lattice comprising aluminum atoms; gallium atoms, iron atoms or a combination thereof. Step (b) is conducted at a pH of about 3.5 or less. Preferably, step (a), step (b) or both are conducted at a temperature of from about ambient temperature to about 300° C., preferably, under stirring/tumbling.
    • 本发明提供了制备具有晶格取代的杂原子的沸石的方法。 该方法包括:(a)使焙烧的硼硅酸盐沸石与酸接触,从而产生至少部分脱硼的沸石; 和(b)使所述至少部分脱硼的沸石与含有选自铝盐,镓盐和铁盐的一种或多种盐的含盐水溶液接触,从而制备具有晶格的硅酸盐或硼硅酸盐沸石, 铝原子; 镓原子,铁原子或其组合。 步骤(b)在约3.5或更低的pH下进行。 优选地,步骤(a),步骤(b)或两者都在约环境温度至约300℃的温度下进行,优选在搅拌/翻转下进行。
    • 6. 发明授权
    • Metaloalluminosilicate composition, preparation and use
    • 金属硅铝酸盐组合物,制备及用途
    • US06346224B1
    • 2002-02-12
    • US09425500
    • 1999-10-22
    • Gerardo Vitale-RojasAndres Miguel Quesada Perez
    • Gerardo Vitale-RojasAndres Miguel Quesada Perez
    • C01B3906
    • C01B39/065C01B39/06Y10S423/22
    • A method for preparing a metalloaluminosilicate, includes the steps of: providing a solution containing a silica source; providing a solution containing an alumina source; providing an aqueous acid solution containing a metal other than silicon or aluminum; mixing the silica source solution with the aqueous acid solution so as to form a silica source-metal containing mixture; mixing the silica source-metal containing mixture with the alumina source solution so as to provide a gel mixture; and hydrothermally crystallizing the gel mixture so as to provide a metalloaluminosilicate material having an aluminosilicate framework and having the metal incorporated into the aluminosilicate framework. A method for preparing aluminosilicate, and specific compositions, are also provided.
    • 一种制备金属铝硅酸盐的方法,包括以下步骤:提供含有二氧化硅源的溶液; 提供含有氧化铝源的溶液; 提供含有除硅或铝之外的金属的酸性水溶液; 将二氧化硅源溶液与酸水溶液混合以形成含二氧化硅源金属的混合物; 将含二氧化硅源金属的混合物与氧化铝源溶液混合以提供凝胶混合物; 并将凝胶混合物水热结晶,从而提供具有铝硅酸盐骨架并将金属掺入硅铝酸盐框架中的金属硅铝酸盐材料。 还提供了制备硅铝酸盐的方法和具体组合物。