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    SILICA GEL COMPOSITIONS CONTAINING ALKALI METALS AND ALKALI METAL ALLOYS
    14.
    发明公开
    SILICA GEL COMPOSITIONS CONTAINING ALKALI METALS AND ALKALI METAL ALLOYS 审中-公开
    碱金属和碱金属合金在含KIESELGELZUSAMMENSETZUNGEN

    公开(公告)号：EP1692075A2

    公开(公告)日：2006-08-23

    申请号：EP04811935.8

    申请日：2004-11-24

    Applicant: Lefenfeld, Michael

    Inventor： LEFENFELD, Michael ,  DYE, James, L.

    IPC: C01B3/00

    CPC classification number: B01J35/002 ,  B01J20/02 ,  B01J20/103 ,  B01J20/28047 ,  B01J20/28078 ,  B01J20/28097 ,  B01J20/281 ,  B01J20/291 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3236 ,  B01J23/04 ,  B01J37/023 ,  B01J37/08 ,  B01J2220/42 ,  B01J2220/54 ,  B01J2220/56 ,  B01J2220/58 ,  C01B3/001 ,  C01B3/06 ,  C07C2/861 ,  C07C2/868 ,  C07D333/76 ,  Y02E60/324 ,  Y02E60/36 ,  C07C15/18 ,  C07C15/14

    Abstract: The invention relates to Group 1 metal/silica gel compositions comprising silica gel and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0, I, II, and III materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by silica gel (porous Si02) under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the silica gel, a mild exothermic reaction produces Stage I material, loose black powders that are indefinitely stable in dry air. Subsequent heating to 400°C produces Stage II materials, which are also loose black powders. Further heating above 400°C forms Stage III material with release of some Group 1 metal. It is believed that Stage I, II and III materials represent reductions of the silica gel after absorption of the Group 1 metal. Preferred Group 1 metal/silica gel compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium- potassium alloys being most preferred. Each stage of the Group 1 metal/silica gel composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

    Catalytic system and method for coupling of aromatic compounds
    18.
    发明公开
    Catalytic system and method for coupling of aromatic compounds 有权
    Katalytisches系统和Verfahren zur Kupplung von aromatischen Verbindungen

    公开(公告)号：EP0970745A1

    公开(公告)日：2000-01-12

    申请号：EP99112806.7

    申请日：1999-07-02

    Applicant: ARTEVA TECHNOLOGIES S.à.r.l.

    Inventor： Schiraldi, David A. ,  Sherman, Sheldon C. ,  Sood, Ohiraj S. ,  White, Mark G.

    IPC: B01J31/04 ,  B01J31/02 ,  C07C2/76 ,  C07C15/04

    CPC classification number: B01J31/2234 ,  B01J31/0225 ,  B01J31/0227 ,  B01J31/04 ,  B01J31/2239 ,  B01J2231/42 ,  B01J2531/824 ,  C07C2/76 ,  C07C51/353 ,  C07C67/343 ,  C07C2531/025 ,  C07C15/14 ,  C07C63/333 ,  C07C69/76

    Abstract: A catalytic process for production of biphenyl and its derivatives by coupling of substituted or unsubstituted monoaryl compounds in the presence of a catalytic system comprising at least one Pd (II) compound and a strong acid or a mixture of acids. The process provides high conversions and high selectivity under mild temperature conditions and short reaction times. The strong acid or mixture of acids has a Hammett acidity of less than about -10, and contains a predominant amount of counterions which form a weak ligand complex with palladium (II). The method is highly selective to formation of desired biaryl isomers, such as 4,4'-isomers, and allows control of the relative amounts of isomers of biaryl compounds and substituted monoaryl compounds in the final product.

    Abstract translation: 通过在包含至少一种Pd（II）化合物和强酸或酸的混合物的催化体系的存在下偶联取代或未取代的单芳基化合物来制备联苯及其衍生物的催化方法。 该方法在温和的温度条件和反应时间短的情况下提供高转化率和高选择性。 强酸或酸的混合物的哈米特酸度小于约-10，并且含有与钯（II）形成弱配体络合物的主要量的抗衡离子。 该方法对于形成所需的联芳基异构体如4,4'-异构体具有高选择性，并且允许控制最终产物中联芳基化合物和取代的单芳基化合物的异构体的相对量。

    Processes for production of mono- and/or di- sec. butylbiphenyl and products obtainable therefrom
    19.
    发明公开
    Processes for production of mono- and/or di- sec. butylbiphenyl and products obtainable therefrom 失效
    一种用于单和/或二仲丁基联苯，和产品的由此获得的准备处理

    公开(公告)号：EP0819667A2

    公开(公告)日：1998-01-21

    申请号：EP97305380.4

    申请日：1997-07-18

    Applicant: KOCH INDUSTRIES, INC.

    Inventor： James, Dustin K. ,  Harding, Mary M. ,  Komin, Andrew P.

    IPC: C07C15/14 ,  B41M5/165

    CPC classification number: C07C15/14 ,  B41M5/1655 ,  C07C2/68 ,  C07C2/70 ,  C07C2/861 ,  C07C2527/126 ,  C07C2529/08 ,  C07C2531/02 ,  C07C2531/26

    Abstract: Processes are provided for the production of sec-butylbiphenyl and di-sec-butylbiphenyl products which are useful as low odor dye solvents in carbonless paper systems. The products are formed by alkylation of biphenyl and butene in the presence of a Lewis acid catalyst complex or a zeolite catalyst such as Y, USY mordenite, and ZSM-12 zeolites. The Lewis acid catalyst complex uses a Lewis acid, an aromatic hydrocarbon and a hydrogen halide or alkyl halide, with more than about 50 mole % of the alkyl group substituents on the aromatic hydrocarbon being methyl groups. Feedstocks containing biphenyl, sec-butylbiphenyl and di-sec-butylbiphenyl may also be transalkylated using the Lewis acid catalyst complex or zeolite catalyst to obtain the desired low odor sec-butylbiphenyl and di-sec-butylbiphenyl product.

    Abstract translation: 提供了用于生产其可用作在无碳纸系统低气味溶剂染料有用仲丁基联苯和二仲丁基联苯产品的方法。 该产品是由联苯和丁烯进行烷基化在路易斯酸催化剂络合物或沸石催化剂的存在下形成的：如Y，USY丝光沸石和ZSM-12沸石。 路易斯酸催化剂复合使用路易斯酸芳香族烃和卤化氢或烷基卤，其中在芳族烃基为甲基基团的烷基取代基的大于约50摩尔％。 含联苯，仲丁基联苯和二仲丁基联苯原料可以使用，因此路易斯酸催化剂复合物或沸石催化剂，以获得所需的低气味仲丁基联苯和二仲丁基联苯产物被烷基转移。

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