Polyvalent bifunctional catalyst and the process of realization of such a catalyst
    3.
    发明授权
    Polyvalent bifunctional catalyst and the process of realization of such a catalyst 有权
    多价双功能催化剂及其催化剂的实现过程

    公开(公告)号:US06781022B1

    公开(公告)日:2004-08-24

    申请号:US09786791

    申请日:2001-05-08

    IPC分类号: B01J2106

    摘要: The objective of the present invention is a polyvalent bifunctional catalyst and the process of its realization. A catalyst characterized by the fact that it contains, over a TiO2 support, an oxide or a mixture of metallic oxides of MC2 type obtained by reduction of the corresponding MC3 oxides, the metal(s) forming the MO2 oxides are chosen from the group formed by W and Mo.

    摘要翻译: 本发明的目的是多价双功能催化剂及其实现方法。 一种催化剂,其特征在于,其包含TiO 2载体上通过还原相应的MC 3氧化物而获得的MC2型金属氧化物的氧化物或混合物,形成MO 2氧化物的金属选自形成的基团 由W和Mo

    Supported catalyst and its use in hydrogenation
    4.
    发明授权
    Supported catalyst and its use in hydrogenation 失效
    负载催化剂及其在氢化中的应用

    公开(公告)号:US06413905B1

    公开(公告)日:2002-07-02

    申请号:US09441552

    申请日:1999-11-17

    IPC分类号: B01J2106

    摘要: A supported catalyst comprising a catalytically active metal and a support modified by application of modifiers to an inner support material is produced by applying the catalytically active metal in the form of its chloride-free dissolved amine complexes, acetylacetonate complexes or allyl complexes to the modified support. A process for producing this supported catalyst and a process for the catalytic hydrogenation of unsaturated compounds using this supported catalyst are also provided.

    摘要翻译: 通过将其无氯化物的溶解胺络合物,乙酰丙酮络合物或烯丙基络合物的形式的催化活性金属施加到改性载体上来制备包含催化活性金属和通过向内部载体材料施加改性剂而改性的载体的载体催化剂 。 还提供了一种制备该负载型催化剂的方法以及使用该载体催化剂催化氢化不饱和化合物的方法。

    Method for preparing titanium on silica catalysts with controlled distributions
    8.
    发明授权
    Method for preparing titanium on silica catalysts with controlled distributions 有权
    在具有受控分布的二氧化硅催化剂上制备钛的方法

    公开(公告)号:US06355596B2

    公开(公告)日:2002-03-12

    申请号:US09323731

    申请日:1999-06-01

    IPC分类号: B01J2106

    摘要: A method for preparing a titanium on silica catalyst, in the form of formed particles such as macrospheres, achieves a controlled titanium distribution type, namely either uniform, eggshell, or intermediate, by selecting the particular titanium precursor depending on its reactivity with hydroxyl groups and by selecting the molar titanium:hydroxyl ratio. Selecting a titanium precursor with a low reactivity and/or adding sufficient titanium precursor to achieve a high molar titanium:hydroxyl ratio aids in forming a uniform distribution of titanium. On the other hand, selecting a titanium precursor with a high reactivity and/or adding only a little titanium precursor resulting in a low molar titanium:hydroxyl ratio aids in forming an eggshell distribution of titanium. Preferred titanium precursors for aiding in the formation of an eggshell distribution of titanium include n-propyl titanate and n-butyl titanate, and preferred titanium precursors for aiding in the formation of a uniform distribution of titanium include titanocene and titanium acetylacetonate. Such silica on titanium catalysts can be used to make epoxidation catalysts, oxidation catalysts, hydroxylation catalysts, and the preferred distribution type depends on the particular application.

    摘要翻译: 以二氧化硅催化剂制备钛的方法,其形成颗粒如大球,通过根据其与羟基的反应性选择特定的钛前体,得到受控的钛分布型,即均匀的,蛋壳或中间体, 通过选择钛:羟基摩尔比。 选择具有低反应性的钛前体和/或添加足够的钛前体以实现高摩尔钛:羟基比有助于形成钛的均匀分布。 另一方面,选择具有高反应性的钛前体和/或仅添加少量钛前体,导致低摩尔钛:羟基比有助于形成钛的蛋壳分布。 有助于形成钛壳蛋白分布的优选钛前体包括钛酸正丙酯和钛酸正丁酯,并且有助于形成均匀分布钛的优选钛前体包括二茂钛和乙酰丙酮钛。 钛催化剂上的这种二氧化硅可用于制备环氧化催化剂,氧化催化剂,羟基化催化剂,优选的分布类型取决于具体应用。

    Process for the direct oxidation of olefins to olefin oxides
    9.
    发明授权
    Process for the direct oxidation of olefins to olefin oxides 失效
    将烯烃直接氧化成烯烃氧化物的方法

    公开(公告)号:US06309998B1

    公开(公告)日:2001-10-30

    申请号:US09458559

    申请日:1999-12-09

    IPC分类号: B01J2106

    摘要: A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.

    摘要翻译: 用于将具有三个或更多个碳原子的烯烃(例如丙烯)通过氧直接氧化成相应的烯烃氧化物如环氧丙烷的方法和催化剂。 该方法包括在氢气存在下和催化剂存在下,在反应条件下使烯烃与氧接触。 催化剂包括钛硅酸盐上的金,优选微孔或中孔钛硅酸盐,例如TS-1,TS-2,Ti-β,Ti-ZSM-48或Ti-MCM-41。 烯烃氧化物的选择性高,烯烃转化率高。 催化剂容易再生,催化剂再生之间的时间长。

    Continuous process for the synthesis of nano-scale precious metal particles
    10.
    发明授权
    Continuous process for the synthesis of nano-scale precious metal particles 失效
    用于合成纳米级贵金属颗粒的连续工艺

    公开(公告)号:US06706902B2

    公开(公告)日:2004-03-16

    申请号:US10074274

    申请日:2002-02-12

    IPC分类号: B01J2106

    摘要: The present invention relates to the continuous production of nano-scale precious metal particles on SiH-containing support materials, the compositions themselves, and the use of these precious metal-containing compositions as catalyst. The continuous process according to the invention includes impregnating support materials and, after thermal activation, drying the support materials by spraying or by fluidized bed technology leads to form precious metal-containing support compositions that are active in the catalysis of oxidation reactions. The catalytically active precious metal-containing support compositions exhibit high selectivities and productivities and have very long catalyst service lives without deactivation. The invention also relates to a process for the oxidation of hydrocarbons in the presence of oxygen, a reducing agent and the precious-metal containing support compositions of the present invention.

    摘要翻译: 本发明涉及在含SiH的载体材料上的纳米级贵金属颗粒的连续生产,组合物本身以及这些含贵金属的组合物作为催化剂的用途。 根据本发明的连续方法包括浸渍支撑材料,并且在热活化之后,通过喷雾或通过流化床干燥载体材料技术导致形成对催化氧化反应有活性的贵重金属的载体组合物。 催化活性的含贵金属的载体组合物表现出高的选择性和生产率,并且具有非常长的催化剂使用寿命而不失活。 本发明还涉及在氧气,还原剂和含贵金属的载体组合物存在下氧化烃的方法。