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194 条记录 (耗时 0.021 秒)

    PROCESS FOR THE MANUFACTURE OF 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE (HCFC-123) AND/OR HCFC-122 (1,1,2-TRICHLORO-2,2-DIFLUOROETHANE)
    3.
    发明申请
    PROCESS FOR THE MANUFACTURE OF 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE (HCFC-123) AND/OR HCFC-122 (1,1,2-TRICHLORO-2,2-DIFLUOROETHANE) 审中-公开

    公开(公告)号：US20200031743A1

    公开(公告)日：2020-01-30

    申请号：US16525554

    申请日：2019-07-29

    申请人： FUJIAN YONGJING TECHNOLOGY CO., LTD

    发明人： Hongjun DU ,  Wenting WU

    IPC分类号： C07C17/20 ,  C07C17/087 ,  C07C19/12 ,  C07C19/10

    摘要： The invention pertains to a method in which the production of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) in at least one reaction step takes place in a microreactor. Particularly, in preferred embodiments of the invention pertains to a method in which the production of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) in at least one reaction step takes place in a microreactor that comprises or is made of SiC (“SiC-microreactor”), or in a microreactor that comprises or is made of an alloy, e.g. such as Hastelloy C. In an ebodiment, the processes for the manufacture of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) can be efficiently combined in that HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) produced by the method according the invention by using a microreactor, preferably an SiC-microreactor, may preferably advantageously serve as starting material/and/or intermediate material in the manufacture of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane), preferably also in a microreactor.

    METHOD FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE
    4.
    发明申请
    METHOD FOR PRODUCING 1-CHLORO-2,2-DIFLUOROETHANE 审中-公开

    公开(公告)号：US20200002253A1

    公开(公告)日：2020-01-02

    申请号：US16333600

    申请日：2017-09-25

    申请人： ARKEMA FRANCE

    发明人： Dominique GARRAIT ,  Charlotte HERDT ,  Camille SCHERPEREEL

    IPC分类号： C07C17/20 ,  C07C19/12

    摘要： The invention relates to a method for producing 1-chloro-2,2-difluoroethane from 1,1,2-trichloroethane, comprising at least one step of separating 1-chloro-2,2-difluoroethane from the organic phase produced during the method; said step comprising a) purification of the organic phase obtained in step (iii) so as to form a first stream comprising 1-chloro-difluoroethane and hydrofluoric acid and a second stream comprising 1,1,2-trichloroethane; b) the elimination of the hydrofluoric acid from said first stream in order to form a third stream comprising 1-chloro-difluoroethane; and c) a purification of said third stream comprising 1-chloro-difluoroethane.

    PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
    7.
    发明申请
    PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE 审中-公开
    生产2,3,3,3-四氯丙烯的方法

    公开(公告)号：US20170057892A1

    公开(公告)日：2017-03-02

    申请号：US15350725

    申请日：2016-11-14

    申请人： HONEYWELL INTERNATIONAL INC.

    发明人： Haiyou WANG ,  Hsueh Sung TUNG

    IPC分类号： C07C19/12 ,  C07C17/25

    CPC分类号： C07C19/12 ,  B01J27/10 ,  B01J27/12 ,  B01J27/138 ,  B01J35/0006 ,  C07B35/06 ,  C07C17/25 ,  C07C21/18

    摘要： The present invention relates, in part, to the discovery that the presence of HF in a HCFC-244bb feedstream in a reaction for the preparation of HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing HF, it is shown that the selectivity to HFO-1234yf via dehydrochlorination of HCFC-244bb is improved.

    摘要翻译： 本发明部分地涉及在用于制备HFO-1234yf的反应中在HCFC-244bb原料流中存在HF导致从HFO-1234yf到HCFO-1233xf的选择性转换的发现。 通过基本上去除HF，显示了通过HCFC-244bb的脱氯化氢对HFO-1234yf的选择性得到改善。

    UV-activated chlorination process
    9.
    发明申请
    UV-activated chlorination process 失效
    紫外线活化氯化法

    公开(公告)号：US20050101811A1

    公开(公告)日：2005-05-12

    申请号：US11008109

    申请日：2004-12-10

    申请人： Max Braun ,  Kerstin Eichholz ,  Stefan Palsherm ,  Carsten Brosch

    发明人： Max Braun ,  Kerstin Eichholz ,  Stefan Palsherm ,  Carsten Brosch

    IPC分类号： C07C17/04 ,  C07C17/10 ,  C07C17/395 ,  C07C19/043 ,  C07C19/08 ,  C07C19/12 ,  C07C17/00

    CPC分类号： C07C17/10 ,  C07C17/04 ,  C07C17/395 ,  C07C19/01 ,  C07C19/12 ,  C07C19/08

    摘要： A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the reaction mixture with UV light having a wavelength of λ>280 nm. In this way pentachloroethane can be produced from trichloroethylene, CFC-113 from HCFC-123 or HFC-133a, CFC-112a from HCFC-142b, or HCFC-123 from HCFC-133a. The method also is suitable for separating photochlorinatable impurities from HFC-365-mfc to obtain purified HFC-365-mfc. Advantages include high yields and excellent selectivity.

    摘要翻译： 通过将氯气加入到CC双键或CC三键中，或通过使气相或液相中的起始化合物与元素氯接触并将反应混合物与具有 波长> 280nm。 以这种方式，可以从三氯乙烯，来自HCFC-123的CFC-113或HFC-133a，来自HCFC-142b的CFC-112a或来自HCFC-133a的HCFC-123制备五氯乙烷。 该方法也适用于从HFC-365-mfc分离光可氯化杂质，得到纯化的HFC-365-mfc。 优点包括高产率和极好的选择性。