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    Modified zinc ferrite catalyst and method of preparation and use
    7.
    发明授权
    Modified zinc ferrite catalyst and method of preparation and use 有权
    改性锌铁氧体催化剂及其制备方法

    公开(公告)号：US08551443B2

    公开(公告)日：2013-10-08

    申请号：US12874479

    申请日：2010-09-02

    申请人： Aghaddin Mamedov ,  Shahid Shaikh ,  Clark Rea ,  Xiankuan Zhang

    发明人： Aghaddin Mamedov ,  Shahid Shaikh ,  Clark Rea ,  Xiankuan Zhang

    IPC分类号： C07C15/00

    CPC分类号： B01J23/80 ,  B01J37/03 ,  C07C5/48 ,  C07C2521/02 ,  C07C2523/02 ,  C07C2523/10 ,  C07C2523/14 ,  C07C2523/18 ,  C07C2523/22 ,  C07C2523/26 ,  C07C2523/28 ,  C07C2523/34 ,  C07C2523/75 ,  C07C2523/80 ,  C07C11/167

    摘要： A catalyst for oxidative dehydrogenation of organic compounds is provided by forming a solution of catalyst precursor components comprised of Fe+3 and Zn+2 cations and at least one other modifier element cation in water to form an aqueous solution of the catalyst precursor components. The modifier element cation has a standard reduction potential of from greater than about −2.87 E° (V) to less than about −0.036 E° (V) with a valence of +2. A base is separately and simultaneously added to the aqueous solution in amounts to maintain the pH of the aqueous solution at a pH of from about 8.5 to about 9.5 as the catalyst precursor components. The catalyst precursor components are allowed to react and precipitate out of solution as a precipitate. The resulting precipitate is calcined to form a modified zinc ferrite catalyst compound.

    摘要翻译： 通过在水中形成由Fe + 3和Zn + 2阳离子和至少一种其它改性元素阳离子组成的催化剂前体组分的溶液以形成催化剂前体组分的水溶液来提供有机化合物的氧化脱氢催化剂。 改性剂元素阳离子具有大于约-2.87E（V）至小于约-0.036E（V）的标准还原电位，其价态为+2。 单独地并且同时地将碱加入到水溶液中，其用量将水溶液的pH保持在约8.5至约9.5的pH作为催化剂前体组分。 催化剂前体组分作为沉淀物反应并沉淀出溶液。 将所得沉淀物煅烧以形成改性的锌铁氧体催化剂化合物。

    Synthesis of acylarylenes and hyperbranched poly(aclarylene)s by metal-free cyclotrimerization of alkynes
    8.
    发明授权
    Synthesis of acylarylenes and hyperbranched poly(aclarylene)s by metal-free cyclotrimerization of alkynes 有权
    通过不含金属的炔炔环化三聚法合成酰基亚芳基和超支化聚（亚丙烯基）

    公开(公告)号：US08436118B2

    公开(公告)日：2013-05-07

    申请号：US12451527

    申请日：2008-03-04

    申请人： Benzhong Tang ,  Ka Wai Jim ,  Anjun Qin ,  Matthias Haeussler ,  Wing Yip Lam

    发明人： Benzhong Tang ,  Ka Wai Jim ,  Anjun Qin ,  Matthias Haeussler ,  Wing Yip Lam

    IPC分类号： C08F138/00 ,  C08F38/00 ,  C07C15/00 ,  C07C15/02

    CPC分类号： C08G63/20 ,  C08G63/00

    摘要： The present invention provides a new metal-free cyclotrimerization reaction of alkynes to produce a 1,3,5-triacylarylene or 1,3,5-triacylbenzene. This reaction is catalyzed by secondary amines, is strictly regioselective, highly functionality-tolerant, and the resulting product can be obtained in high yields. This reaction can be further applied for the preparation of novel branched (co)polymers bearing the triacylarylenes as structural units. The preparation of the (co)polymers is carried out as a one-pot single-step reaction procedure, giving branched oligomers and polymers in high yields up to 90%. The produced (co)polymers are also processible, easily film-forming, and thermally stable.

    摘要翻译： 本发明提供了一种新的无金属的炔炔环化三聚反应，产生1,3,5-三酰基亚芳基或1,3,5-三酰基苯。 该反应由仲胺催化，是严格区域选择性的，具有高度的官能度 - 耐受性，所得产物可以高产率获得。 该反应可以进一步用于制备具有三酰基亚芳基作为结构单元的新型支链（共）聚合物。 （共）聚合物的制备是作为一锅一步反应方法进行的，以高产率提供高达90％的支链低聚物和聚合物。 生产的（共）聚合物也是可加工的，容易成膜和热稳定的。