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    Environmentally friendly alternative refrigerant for HCFC-22
    2.
    发明授权
    Environmentally friendly alternative refrigerant for HCFC-22 有权
    HCFC-22的环保替代制冷剂

    公开(公告)号：US07459101B2

    公开(公告)日：2008-12-02

    申请号：US11221777

    申请日：2005-09-09

    申请人： Guangming Chen ,  Zhikal Guo ,  Xinzheng Guo ,  Yongmei Xuan

    发明人： Guangming Chen ,  Zhikal Guo ,  Xinzheng Guo ,  Yongmei Xuan

    IPC分类号： C09K5/04

    CPC分类号： C09K5/045 ,  C09K2205/22 ,  C09K2205/43

    摘要： The present invention discloses ternary mixtures of fluoroethane (HFC-161), pentafluoroethane (HFC-125) and difluoromethane (HFC-32) used as environmentally friendly alternative refrigerants to HCFC-22. The mass ratios of the mixture of each component are 5-60%, 25-50% and 5-50%, respectively. Its ODP is zero, with no depletion potential to the ozone layer. Its GWP is smaller than those of HCFC-22, R407C and R410A. Its working pressure and pressure ratio are close to those of HCFC-22. With few changes to system components, it can be used as a potential substitute refrigerant for HCFC-22.

    摘要翻译： 本发明公开了用作HCFC-22的环保替代制冷剂的氟乙烷（HFC-161），五氟乙烷（HFC-125）和二氟甲烷（HFC-32）的三元混合物。 各组分的混合物的质量比分别为5-60％，25-50％和5-50％。 其ODP为零，对臭氧层没有消耗潜力。 其GWP小于HCFC-22，R407C和R410A。 其工作压力和压力比接近于HCFC-22。 系统组件几乎没有变化，可用作HCFC-22的潜在替代制冷剂。

    METHOD FOR PREPARING 2-CHLORO-5-TRIFLUOROMETHYLPYRIDINE
    4.
    发明申请
    METHOD FOR PREPARING 2-CHLORO-5-TRIFLUOROMETHYLPYRIDINE 有权

    公开(公告)号：US20210139428A1

    公开(公告)日：2021-05-13

    申请号：US16772916

    申请日：2018-12-05

    申请人： ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD. ,  ZHEJIANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD. ,  SINOCHEM LANTIAN CO., LTD.

    发明人： Wanjin YU ,  Shengda LIN ,  Minyang LIU ,  Wucan LIU ,  Jianjun ZHANG ,  Xianjin CHEN

    IPC分类号： C07D213/61 ,  B01J23/44 ,  B01J23/04 ,  B01J29/40

    摘要： The present invention provides a method for the preparing of 2-chloro-5-trifluoromethylpyridine, comprising two steps of chlorofluorination reaction and chlorination reaction, the chlorination catalyst used in the chlorination reaction was chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium and barium and a supported palladium catalyst; or under the action of at least one catalyst chosen from ZSM-5, 5A, β and 13X molecular sieves, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine. Or, under the action of a catalyst chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium, and barium and a supported palladium catalyst, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine. The present invention has the advantages of easily availability and low-cost of raw materials, safe operation, high yield, easy isolation and recovery of catalyst, environmental protection, fast reaction speed and continuous production on a large-scale, etc.

    Method of producing fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
    5.
    发明授权
    Method of producing fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether 有权
    氟甲基1,1,1,3,3,3-六氟异丙醚的制备方法

    公开(公告)号：US08530704B2

    公开(公告)日：2013-09-10

    申请号：US13123190

    申请日：2009-08-25

    申请人： Xu Weiguo ,  Hua Li

    发明人： Xu Weiguo ,  Hua Li

    IPC分类号： C07C43/00

    CPC分类号： C07C41/16 ,  C07C43/123

    摘要： The present invention provides a preparation method of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether by reacting CH2FX with 1,1,1,3,3,3-hexafluoroisopropanol in the presence of acid-binding agent. The reaction can be also preformed in the presence of solvent and/or phase-transfer catalyst. The present method has the advantages of simple reaction, manageable control condition, high material conversion and product yield, and the product can be easily separated. The obtained fluoromethyl 1,1,1,3,3,3-hexafluoroisoprophyl ether can be used as a safe inhalation anesthetics.

    摘要翻译： 本发明提供了在酸结合剂存在下使CH 2 FX与1,1,1,3,3,3-六氟异丙醇反应的氟甲基1,1,1,3,3,3-六氟异丙醚的制备方法。 反应也可以在溶剂和/或相转移催化剂的存在下进行。 本发明方法反应简单，控制条件可控，物料转化率高，产品收率高，产品易于分离。 得到的氟甲基1,1,1,3,3,3-六氟异丙醚可用作安全吸入麻醉剂。

    Method for preparing 2-chloro-5-trifluoromethylpyridine
    7.
    发明授权
    Method for preparing 2-chloro-5-trifluoromethylpyridine 有权

    公开(公告)号：US11254642B2

    公开(公告)日：2022-02-22

    申请号：US16772916

    申请日：2018-12-05

    申请人： ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD. ,  ZHEJIANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD. ,  SINOCHEM LANTIAN CO., LTD.

    发明人： Wanjin Yu ,  Shengda Lin ,  Minyang Liu ,  Wucan Liu ,  Jianjun Zhang ,  Xianjin Chen

    IPC分类号： C07D213/61 ,  B01J23/04 ,  B01J23/44 ,  B01J29/40

    摘要： The present invention provides a method for the preparing of 2-chloro-5-trifluoromethylpyridine, comprising two steps of chlorofluorination reaction and chlorination reaction, the chlorination catalyst used in the chlorination reaction was chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium and barium and a supported palladium catalyst; or under the action of at least one catalyst chosen from ZSM-5, 5A, β and 13× molecular sieves, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine. Or, under the action of a catalyst chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium, and barium and a supported palladium catalyst, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine. The present invention has the advantages of easily availability and low-cost of raw materials, safe operation, high yield, easy isolation and recovery of catalyst, environmental protection, fast reaction speed and continuous production on a large-scale, etc.