Ultrastable porous aluminosilicate structures
    4.
    发明授权
    Ultrastable porous aluminosilicate structures 有权
    超声波多孔铝硅酸盐结构

    公开(公告)号:US06746659B2

    公开(公告)日:2004-06-08

    申请号:US09792017

    申请日:2001-02-21

    IPC分类号: C01B3700

    摘要: Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.

    摘要翻译: 描述了使用离子结构导向剂衍生自原生球藻种子的介孔六方晶,立方,层状,虫洞或泡沫硅铝酸盐,硅酸盐硅酸盐和钛硅酸盐。 结构中的硅和铝,镓或钛中心是稳定的,使得当在水或水蒸气(蒸汽)存在下加热时,结构的框架不会塌陷。 蒸汽稳定组合物可用作烃转化的催化剂,包括流化床催化裂化和石油加氢裂化,以及有机化合物的其它反应。

    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: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。

    Hybrid organic-inorganic nanocomposites and methods of preparation
    9.
    发明授权
    Hybrid organic-inorganic nanocomposites and methods of preparation 有权
    混合有机 - 无机纳米复合材料及其制备方法

    公开(公告)号:US6017632A

    公开(公告)日:2000-01-25

    申请号:US137518

    申请日:1998-08-20

    IPC分类号: C08K9/08 B23B5/16 C08K3/34

    摘要: The present invention relates to particulate concentrate compositions formed by intercalation of a polymer polymerizing component into the galleries of a layered inorganic cation exchange composition initially in proton exchanged form and to the use of the particulate concentrates for the preparation of cured polymer-inorganic nanolayer hybrid composite compositions. The polymer polymerizing component comprising the particulate concentrate contains a basic group for reaction with the protons of the inorganic cation exchanger. Also, the polymer polymerizing component contains a functional group for polymerization reaction with a polymer precursor, a mixture of polymer precursors, or a polymer melt which is introduced into the galleries of the inorganic cation exchanger and reacts with the polymer polymerizing component to form a cured polymer-inorganic nanolayer hybrid composite. In the most preferred embodiment of the invention the layered inorganic composition is selected from the family of 2:1 layered silicate cation exchangers.

    摘要翻译: 本发明涉及通过将聚合物聚合组分嵌入最初质子交换形式的层状无机阳离子交换组合物的凝结物中形成的颗粒状浓缩物组合物以及使用颗粒浓缩物制备固化的聚合物 - 无机纳米层混合复合材料 组合物。 包含颗粒浓缩物的聚合物聚合组分含有用于与无机阳离子交换剂的质子反应的碱性基团。 此外,聚合物聚合组分含有用于与聚合物前体,聚合物前体的混合物或聚合物熔体的聚合反应的官能团,其被引入无机阳离子交换剂的凝结物中并与聚合物聚合组分反应以形成固化 聚合物 - 无机纳米层混合复合材料。 在本发明的最优选实施方案中,层状无机组合物选自2:1层状硅酸盐阳离子交换剂族。

    Porous inorganic oxide materials prepared by non-ionic surfactant
templating route
    10.
    发明授权
    Porous inorganic oxide materials prepared by non-ionic surfactant templating route 失效
    通过非离子表面活性剂模板法制备的多孔无机氧化物材料

    公开(公告)号:US5622684A

    公开(公告)日:1997-04-22

    申请号:US465770

    申请日:1995-06-06

    摘要: A method for the preparation of new quasi-crystalline, porous inorganic oxide materials possessing uniform framework-confined mesopores in the range 2.0-10.0 nm and large elementary particle size of more than 500.0 nm. The method uses an interaction between various nonionic polyethylene oxide based surfactants (N.degree.) and neutral inorganic oxide precursors (I.sunburst.) at ambient reaction temperatures. The materials formed exhibit semi-ordered arrays of well defined pores owing to the specific mechanism of self-assembly, large pore wall thicknesses of at least 2.0 nm producing highly stable materials and large particle sizes incorporating large numbers of pores. This (N.degree. I.degree.) templating approach introduces several new concepts to mesostructure synthesis. The application of the low-cost, non-toxic and biodegradable surfactants and ambient reaction temperatures, introduces environmentally clean synthetic techniques to the formation of mesostructures. Recovery of the template can be achieved through solvent extraction where the solvent may be water or ethanol.

    摘要翻译: 一种制备新的准晶体,多孔无机氧化物材料的方法,其具有2.0-10.0nm范围内的均匀框架约束的介孔和大于500.0nm的大的基本粒度。 该方法在环境反应温度下使用各种非离子聚环氧乙烷基表面活性剂(N DEG)和中性无机氧化物前体(I + 559)之间的相互作用。 所形成的材料由于具有自组装的特定机理而具有良好限定的孔的半排列,具有至少2.0nm的大孔壁厚度,产生高度稳定的材料并且具有大量的孔的大粒径。 这种(N DEG I DEG)模板方法为介孔结构合成引入了几个新概念。 低成本,无毒和可生物降解的表面活性剂和环境反应温度的应用,引入了环境清洁的合成技术来形成介观结构。 模板的回收可以通过溶剂萃取来实现,其中溶剂可以是水或乙醇。