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    Method for producing chlorohydrocarbon having conjugated double bonds
    4.
    发明授权
    Method for producing chlorohydrocarbon having conjugated double bonds 有权

    公开(公告)号：US09845273B2

    公开(公告)日：2017-12-19

    申请号：US14189373

    申请日：2014-02-25

    Applicant: Shin-Etsu Chemical Co., Ltd.

    Inventor： Yuki Miyake ,  Takeshi Kinsho ,  Miyoshi Yamashita ,  Naoki Ishibashi ,  Takehiko Fukumoto

    IPC: C07C17/16 ,  C07C17/07

    CPC classification number: C07C17/07 ,  C07C17/16 ,  C07C21/04

    Abstract: Provided is a method for producing a chlorohydrocarbon having conjugated double bonds by stereoselectively chlorinating an alcohol having conjugated double bonds. More specifically, provided is a method for producing a chlorohydrocarbon having conjugated double bonds, the method including a step of chlorinating an alcohol having conjugated double bonds with a chlorinating agent in a solvent in the presence of a base and in the absence of metal salt for chlorination of the alcohol, and the alcohol being represented by the formula (1): RCH═CHCH═CH—Z—OH  (1) wherein R represents a hydrogen atom or a linear, branched or cyclic C1-17 monovalent hydrocarbon group which may have at least one double bond or at least one triple bond; and Z represents a linear, branched or cyclic C1-17 divalent hydrocarbon group which may have at least one double bond or at least one triple bond.

    Process for the production of chlorinated propenes
    7.
    发明授权
    Process for the production of chlorinated propenes 有权

    公开(公告)号：US09598334B2

    公开(公告)日：2017-03-21

    申请号：US14429263

    申请日：2013-09-13

    Applicant: Blue Cube IP LLC

    Inventor： Max M. Tirtowidjojo

    IPC: C07C17/10 ,  C07C17/25 ,  C07C17/04

    CPC classification number: C07C17/25 ,  C07C17/04 ,  C07C17/10 ,  C07C21/04

    Abstract: Processes for the production of chlorinated propenes are provided. The present processes make use of 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or in combination with 1,2,3-trichloropropane. At least one dehydrochlorination is conducted in the gas phase, and is the first process step. The present processes can also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, providing further time and cost savings.

    Process for producing 2,3,3,3-tetrafluoropropene
    9.
    发明授权
    Process for producing 2,3,3,3-tetrafluoropropene 有权
    制备2,3,3,3-四氟丙烯的方法

    公开(公告)号：US09359273B2

    公开(公告)日：2016-06-07

    申请号：US14351732

    申请日：2012-10-11

    Applicant: HONEYWELL INTERNATIONAL INC.

    Inventor： Selma Bektesevic ,  Daniel C. Merkel ,  Mario Joseph Nappa ,  Xuehui Sun ,  Hsueh Sung Tung ,  Haiyou Wang

    IPC: C07C17/20 ,  C07C17/25 ,  C07C21/04 ,  C07C17/087

    CPC classification number: C07C17/20 ,  C07C17/087 ,  C07C17/25 ,  C07C21/04 ,  C07C21/18 ,  C07C19/10

    Abstract: The present invention relates, in part, to the discovery that the presence of impurities in 1,1,2,3-tetrachloropropene (1230xa) results in catalyst instability during the fluorination of 1230xa to 2-chloro-3,3,3-trifluoropropene. By substantially removing the impurities, it is shown that the catalyst life is extended and results in improved operation efficiency of the fluorination reaction. Such steps similarly result in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf).

    Abstract translation: 本发明部分涉及发现在1,1,2,3-四氯丙烯（1230xa）中杂质的存在导致在1230xa氟化为2-氯-3,3,3-三氟丙烯期间的催化剂不稳定性 。 通过基本上除去杂质，显示催化剂寿命延长并且导致改善氟化反应的操作效率。 这些步骤类似地导致某些氢氟烯烃，特别是2,3,3,3-四氟丙烯（1234yf）的生产的总体改进。

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