Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation
    1.
    发明授权
    Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation 有权
    介孔金属硅酸盐分子筛的催化应用及其制备方法

    公开(公告)号:US06413902B1

    公开(公告)日:2002-07-02

    申请号:US09661023

    申请日:2000-09-13

    IPC分类号: C01B3338

    摘要: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S°) and neutral inorganic precursors (I°) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. The templating of neutral metallosilicate precursors (I°) with neutral diamine surfactants (S°—S°) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. These new mesoporous metallosilicate molecular sieves exhibit exceptional catalytic activity for peroxide hydroxylation of benzene and oxidation of substituted aromatics with kinetic diameters that are too large (larger than 6 Å) to access the pore structure of the conventional microporous transition metal-substituted molecular sieves such as titano- and vanadosilicates.

    摘要翻译: 已经使用了基于中性伯胺或二胺表面活性剂(S°)和中性无机前体(I°)之间的H键和自组装的介孔分子筛的中性模板化途径来制备具有位置分离转移的六方晶系和层状介孔二氧化硅 金属中心。 中性金属硅酸盐前体(I°)与中性二胺表面活性剂(S°-S°)的模板提供了表现出互补的框架限制的微孔性和结构中等孔隙度的热稳定的柱状金属硅酸盐,同时也提供了通过溶剂萃取的模板回收。 这些新的介孔金属硅酸盐分子筛对于苯的过氧化羟基化和对具有太大(大于6埃)的动力学直径的取代芳族化合物的氧化具有优异的催化活性,以进入常规的微孔过渡金属取代的分子筛的孔结构,例如 钛和钒硅酸盐。

    Crystalline inorganic oxide compositions prepared by neutral templating
route
    2.
    发明授权
    Crystalline inorganic oxide compositions prepared by neutral templating route 失效
    通过中性模板法制备的结晶无机氧化物组合物

    公开(公告)号:US5800800A

    公开(公告)日:1998-09-01

    申请号:US706552

    申请日:1996-09-05

    摘要: This invention relates to new crystalline organic compositions having unique combinations of framework-confined uniform mesopores and textural mesopores and to a method for their preparation. The compositions typically possess a framework wall thickness of at least about 17 .ANG., small elementary particle size of less than about 400 .ANG., and ratio of textural to framework-confined mesoporosity of greater than about 0.2. The formation of the mesoporous structure is accomplished by a novel self-assembly mechanism involving hydrogen bonding between neutral amine surfactant (S.degree.) and neutral inorganic oxide precursor (I.degree.). This S.degree.I.degree. templating approach allows for facile and environmentally benign recycling of the cost-intensive template by simple solvent extraction methods.

    摘要翻译: 本发明涉及具有框架限制的均匀介孔和质构介孔的独特组合的新型结晶有机组合物及其制备方法。 所述组合物通常具有至少约17安培的小的基本粒子尺寸,小于约400安培的小的基本粒度,以及大于约0.2的结构与框架约束的中孔隙比。 中孔结构的形成是通过一种新型的自组装机理实现的,该机制涉及中性胺表面活性剂(S DEG)和中性无机氧化物前体(I DEG)之间的氢键合。 这种S DEG I DEG模板方法允许通过简单的溶剂萃取方法轻松和环境友好地回收成本密集型模板。

    Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation
    5.
    发明授权
    Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation 失效
    介孔金属硅酸盐分子筛的催化应用及其制备方法

    公开(公告)号:US06193943B1

    公开(公告)日:2001-02-27

    申请号:US08797718

    申请日:1997-02-11

    IPC分类号: C01B3338

    摘要: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S°) and neutral inorganic precursors (I°) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 Å, small elementary particle size (≦400 Å), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction. The templating of neutral metallosilicate precursors (I°) with neutral diamine surfactants (S°—S°) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. In addition, a hexagonal transition metal-substituted catalysts, analogous to MCM-41, have been prepared using the mediated S+X·I+ templating pathway (Pathway 3) and mild reaction conditions. These new mesoporous metallosilicate molecular sieves exhibit exceptional catalytic activity for peroxide hydroxylation of benzene and oxidation of substituted aromatics with kinetic diameters that are too large (larger than 6 Å) to access the pore structure of the conventional microporous transition metal-substituted molecular sieves such as titano- and vanadosilicates.

    摘要翻译: 已经使用了基于中性伯胺或二胺表面活性剂(S°)和中性无机前体(I°)之间的H键和自组装的介孔分子筛的中性模板化途径来制备具有位置分离转移的六方晶系和层状介孔二氧化硅 金属中心。 该模板方法允许制备具有至少约17埃的大框架壁厚度,小的基本粒度(<= 400)的六边形或六边形样介孔氧化催化剂,以及框架约束的中孔和结构中孔的独特组合 同时通过简单的溶剂萃取提供中性模板的简便回收。 中性金属硅酸盐前体(I°)与中性二胺表面活性剂(S°-S°)的模板提供了表现出互补的框架限制的微孔性和结构中等孔隙度的热稳定的柱状金属硅酸盐,同时也提供了通过溶剂萃取的模板回收。 此外,已经使用介导的S + X.I +模板途径(途径3)和温和的反应条件制备了类似于MCM-41的六方晶过渡金属取代的催化剂。这些新的介孔金属硅酸盐分子筛显示出极好的催化活性 苯的过氧化羟基化和具有太大(大于6)的动力学直径的取代芳族化合物的氧化,以进入常规的微孔过渡金属取代的分子筛如钛和钒硅酸盐的孔结构。

    Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation
    7.
    发明授权
    Catalytic applications of mesoporous metallosilicate molecular sieves and methods for their preparation 失效
    介孔金属硅酸盐分子筛的催化应用及其制备方法

    公开(公告)号:US06391278B1

    公开(公告)日:2002-05-21

    申请号:US09246739

    申请日:1999-02-08

    IPC分类号: C01B3344

    摘要: A neutral templating route to mesoporous molecular sieves based on H-bonding and self-assembly between neutral primary amine or diamine surfactants (S°) and neutral inorganic precursors (I°) has been used to prepare hexagonal and lamellar mesoporous silicas with site isolated transition metal centers. This templating approach allows for the preparation of hexagonal or hexagonal-like mesoporous oxidation catalysts with large framework wall thickness of at least about 17 Å, small elementary particle size (≦400 Å), and unique combinations of framework-confined mesopores and textural mesopores while at the same time providing for facile recovery of the neutral template by simple solvent extraction. The templating of neutral metallosilicate precursors (I°) with neutral diamine surfactants (S°—S°) affords thermally stable pillared lamellar metallosilicates exhibiting complementary framework-confined microporosity and textural mesoporosity while at the same time also providing for template recovery by solvent extraction. In addition, a hexagonal transition metal-substituted catalysts, analogous to MCM-41, have been prepared using the mediated S+X−I+ templating pathway (Pathway 3) and mild reaction conditions.

    摘要翻译: 已经使用了基于中性伯胺或二胺表面活性剂(S°)和中性无机前体(I°)之间的H键和自组装的介孔分子筛的中性模板化途径来制备具有位置分离转移的六方晶系和层状介孔二氧化硅 金属中心。 该模板方法允许制备具有至少约17埃的大框架壁厚度,小的基本粒度(<= 400)的六边形或六边形样介孔氧化催化剂,以及框架约束的中孔和结构中孔的独特组合 同时通过简单的溶剂萃取提供中性模板的简便回收。 中性金属硅酸盐前体(I°)与中性二胺表面活性剂(S°-S°)的模板提供了表现出互补的框架限制的微孔性和结构中等孔隙度的热稳定的柱状金属硅酸盐,同时也提供了通过溶剂萃取的模板回收。 此外,使用介导的S + X-I +模板途径(途径3)和温和的反应条件,已经制备了类似于MCM-41的六方晶过渡金属取代的催化剂。