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13 条记录 (耗时 0.029 秒)

    Preparation of hexafluoropropylene from the pyrolysis of trifluoromethane and tetrafluoroethylene
    4.
    发明授权
    Preparation of hexafluoropropylene from the pyrolysis of trifluoromethane and tetrafluoroethylene 失效
    从三氟甲烷和四氟乙烯的热解制备六氟丙烯

    公开(公告)号：US06403848B1

    公开(公告)日：2002-06-11

    申请号：US09820631

    申请日：2001-03-30

    申请人： Dong Ju Moon ,  Hong Gon Kim ,  Byoung Sung Ahn ,  Moon Jo Chung ,  Young Soo Kwon

    发明人： Dong Ju Moon ,  Hong Gon Kim ,  Byoung Sung Ahn ,  Moon Jo Chung ,  Young Soo Kwon

    IPC分类号： C07C1702

    CPC分类号： C07C17/269 ,  C07C21/18

    摘要： The present invention relates to a process for preparing hexafluoropropylene(CF3CF═CF2, HFP) from the pyrolysis of trifluoromethane(CHF3, R23) and tetrafluoroethylene(C2F4, TFE) and more particularly, to the process for preparing hexafluoropropylene from the pyrolysis of an admixture of R23 and TFE mixed in an appropriate molar ratio at below 900 which is lower than the conventional reaction temperature and longer residence time, after investigating the pyrolysis reaction of R23 and TFE by the computer simulation. The process for preparing HFP is performed by carefully controlling reaction temperature with heat balance resulted from an endothermic pyrolysis of R23 and an exothermic dimerization of TFE to prevent from carbon formation, recycling unreacted R23 and TFE in the product separated and purified from distillation column, adding fresh R23 additionally to keep an appropriate molar ratio of R23 and TFE, to improve a total yield of HFP and to minimize heat supply from outside.

    摘要翻译： 本发明涉及从三氟甲烷（CHF 3，R 23）和四氟乙烯（C 2 F 4，TFE）的热解制备六氟丙烯（CF 3 CF = CF 2，HFP）的方法，更具体地说，涉及从混合物的热解制备六氟丙烯的方法 通过计算机模拟研究R23和TFE的热解反应后，R23和TFE以适合的摩尔比混合在900以下，低于常规反应温度和较长的停留时间。 制备HFP的过程是通过仔细控制反应温度和由R23的吸热热解产生的热平衡和TFE的放热二聚反应来防止形成碳，循环未反应的R23和TFE，从蒸馏塔中分离和纯化，加入 新鲜的R23另外保持适当的R23和TFE的摩尔比，以提高HFP的总产率并最小化从外部的供热。

    Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative
    8.
    发明授权
    Synthesis of alkylene carbonates using a catalyst system comprising metal halide and pyridine or pyridine derivative 失效
    使用包含金属卤化物和吡啶或吡啶衍生物的催化剂体系合成碳酸亚烷基酯

    公开(公告)号：US06407264B2

    公开(公告)日：2002-06-18

    申请号：US09780235

    申请日：2001-02-09

    申请人： Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

    发明人： Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

    IPC分类号： C07D31710

    CPC分类号： C07D317/36 ,  C07D317/38

    摘要： The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.

    摘要翻译： 本发明涉及一种制备式（1）的碳酸亚烷基酯的方法，其中R 1和R 2各自独立地为H; C1-C4烷基或苯基;所述方法的特征在于在催化剂体系存在下使环氧烷与二氧化碳反应，所述催化剂体系包含a）金属卤化物[MXm]和b）吡啶或吡啶衍生物[Py]，其中Py选自 一组吡啶; M是选自Zn，Fe，Mn，Pb和In的金属原子; X是选自Cl，Br和I的卤素; m为2或3。

    Zinc air fuel cell with enhanced cell performance
    9.
    发明授权
    Zinc air fuel cell with enhanced cell performance 有权
    锌空气燃料电池具有增强的电池性能

    公开(公告)号：US08603702B2

    公开(公告)日：2013-12-10

    申请号：US12837750

    申请日：2010-07-16

    申请人： Hong Gon Kim ,  Dong Jin Suh ,  Chang Soo Kim ,  Hyun Joo Lee ,  Byoung Koun Min

    发明人： Hong Gon Kim ,  Dong Jin Suh ,  Chang Soo Kim ,  Hyun Joo Lee ,  Byoung Koun Min

    IPC分类号： H01M8/04 ,  H01M4/42

    CPC分类号： H01M12/065 ,  H01M2/162 ,  H01M2/1673 ,  H01M4/12 ,  H01M4/661 ,  H01M4/742 ,  H01M4/8652 ,  H01M4/8657 ,  H01M4/886 ,  H01M4/8882 ,  H01M4/9016

    摘要： Provided is a zinc air fuel cell with enhanced cell performance which includes a separator-electrode assembly including a perforated metal plate as a cathode current collector, a catalyst-coated carbon paper, a separator, a perforated metal plate as an anode current collector, and a tilted nonconductive support. A metal plate may be placed on the tilted nonconductive support and connected to the anode current collector in the separator-electrode assembly to enlarge the active area of the anode current collector. Performance may be efficiently enhanced by minimizing a distance between the anode current collector and the cathode current collector, and by adding a metal plate which plays a role of an additional anode current collector on the tilted nonconductive support so as to increase the overall active area of anode current collector contacting with zinc pellets and to resultantly enhance the ionization of zinc.

    摘要翻译： 提供一种具有增强的电池性能的锌空气燃料电池，其包括：作为正极集电体的穿孔金属板，催化剂涂布碳纸，隔膜，作为阳极集电体的多孔金属板的隔离电极组件，以及 倾斜的非导电支撑。 可以将金属板放置在倾斜的非导电支撑件上并连接到分离器 - 电极组件中的阳极集电器，以扩大阳极集电器的有效面积。 通过最小化阳极集电器和阴极集电器之间的距离，并且通过在倾斜的非导电支撑上添加起额外的阳极集电器的作用的金属板来增加总体有效面积 阳极集流体与锌颗粒接触，从而增强锌的离子化。