Process for the Preparation of 2,3,3,3 Tetrafluoropropene
    11.
    发明申请
    Process for the Preparation of 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:US20150203422A1

    公开(公告)日:2015-07-23

    申请号:US14363918

    申请日:2011-12-14

    Abstract: The present invention provides a process for preparing 2,3,3,3-tetrafluoropropene from 1,1,1,2,3-pentachloropropane and/or 1,1,2,2,3-pentachloropropane, comprising the following steps: (a) catalytic reaction of 1,1,1,2,3-pentachloropropane and/or 1,1,2,2,3-pentachloropropane with HF into a reaction mixture comprising HCl, 2-chloro-3,3,3-trifluoropropene, 2,3,3,3-tetrafluoropropene, unreacted HF, and optionally 1,1,1,2,2-pentafluoropropane; (b) separating the reaction mixture into a first stream comprising HCl and 2,3,3,3-tetrafluoropropene and a second stream comprising HF, 2-chloro-3,3,3-trifluoropropene and optionally 1,1,1,2,2-pentafluoropropane; (c) catalytic reaction of the second stream into a reaction mixture comprising 2,3,3,3-tetrafluoropropene, HCl, unreacted 2-chloro-3,3,3-trifluoropropene, unreacted HF and optionally 1,1,1,2,2-pentafluoropropane and (d) feeding the reaction mixture of step (c) directly without separation to step (a).

    Abstract translation: 本发明提供从1,1,1,2,3-五氯丙烷和/或1,1,2,2,3-五氯丙烷制备2,3,3,3-四氟丙烯的方法,包括以下步骤:( a)1,1,1,2,3-五氯丙烷和/或1,1,2,2,3-五氯丙烷与HF的催化反应进入包含HCl,2-氯-3,3,3-三氟丙烯的反应混合物 ,2,3,3,3-四氟丙烯,未反应的HF和任选的1,1,1,2,2-五氟丙烷; (b)将反应混合物分离成包含HCl和2,3,3,3-四氟丙烯的第一料流和包含HF,2-氯-3,3,3-三氟丙烯和任选的1,1,1,2 ,2-五氟丙烷; (c)将第二流催化反应成包含2,3,3,3-四氟丙烯,HCl,未反应的2-氯-3,3,3-三氟丙烯,未反应的HF和任选的1,1,1,2 (d)直接进料步骤(c)的反应混合物而不分离步骤(a)。

    Process for the preparation of fluorinated compounds
    12.
    发明授权
    Process for the preparation of fluorinated compounds 有权
    氟化合物的制备方法

    公开(公告)号:US08389779B2

    公开(公告)日:2013-03-05

    申请号:US12842737

    申请日:2010-07-23

    CPC classification number: C07C21/18 C07C17/25 C07C17/354 C07C17/383 C07C19/08

    Abstract: A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene comprising the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; (iv) purification of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage; and (v) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene; and (vi) purification of the 2,3,3,3-tetrafluoro-1-propene of the preceding stage.

    Abstract translation: 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法,包括以下步骤:(i)六氟丙烯的氢化,得到1,1,1,2,3, 3-六氟丙烷; (ii)前段得到的1,1,1,2,3,3-六氟丙烷的脱氟化氢,得到1,2,3,3,3-五氟-1-丙烯; (iii)在前一阶段获得的1,2,3,3,3-五氟-1-丙烯的氢化,得到1,1,1,2,3-五氟丙烷; (iv)前一阶段获得的1,1,1,2,3-五氟丙烷的纯化; 和(v)前一阶段获得的1,1,1,2,3-五氟丙烷的脱氟化氢,得到2,3,3,3-四氟-1-丙烯; 和(vi)前一阶段的2,3,3,3-四氟-1-丙烯的纯化。

    METHOD FOR PRODUCING PENTAFLUOROETHANE
    13.
    发明申请
    METHOD FOR PRODUCING PENTAFLUOROETHANE 有权
    生产四氢呋喃的方法

    公开(公告)号:US20090326284A1

    公开(公告)日:2009-12-31

    申请号:US12302645

    申请日:2007-05-09

    CPC classification number: C07C19/08 C07C17/206 C07C17/21 Y02P20/582

    Abstract: The invention relates to a method for producing pentafluoroethane, and especially to a method comprising (i) a step during which perchloroethylene and optionally 2,2-dichloro-1,1,1-trifluoroethane and/or 2-chloro-1,1,1,2-tetrafluoroethane react(s) with hydrofluoric acid in a gaseous phase in the presence of a catalyst in an adiabatic multi-stage reactor, and optionally (ii) a step of separating the flow produced in step (i) in order to obtain a fraction of light products and a fraction of heavy products.

    Abstract translation: 本发明涉及一种生产五氟乙烷的方法,特别涉及一种方法,其包括(i)全氯乙烯和任选的2,2-二氯-1,1,1-三氟乙烷和/或2-氯-1,1, 在绝热多级反应器中,在催化剂存在下,1,2-二氟乙烷与氢氟酸在气相中反应,和任选地(ii)分离步骤(i)中产生的流以便 获得一小部分轻质产品和一部分重质产品。

    METHOD FOR PRODUCING HYDROFLUOROCARBONS
    14.
    发明申请
    METHOD FOR PRODUCING HYDROFLUOROCARBONS 审中-公开
    生产氢氟烃的方法

    公开(公告)号:US20090270659A1

    公开(公告)日:2009-10-29

    申请号:US12302659

    申请日:2007-05-09

    Abstract: The invention relates to a method for producing hydrofluorocarbons. The method comprises a step of reacting at least one hydro(fluoro)chlorocarbon or chlorocarbon with hydrofluoric acid in a gaseous phase in the presence of a catalyst, and a step of separating fluorination reaction products from the mixture. The method is characterized in that the gaseous flow from the reaction is compressed by means of a compressor before being subjected to the separation step. The invention also relates to a device for implementing the method.

    Abstract translation: 本发明涉及一种生产氢氟烃的方法。 该方法包括在催化剂存在下使气态中至少一种氢(氟)氯化碳或氯代烃与氢氟酸反应的步骤和从混合物中分离氟化反应产物的步骤。 该方法的特征在于,在进行分离步骤之前,来自反应的气流通过压缩机被压缩。 本发明还涉及一种用于实现该方法的装置。

    Process For The Preparation of Fluorinated Compounds
    16.
    发明申请
    Process For The Preparation of Fluorinated Compounds 有权
    氟化合物的制备方法

    公开(公告)号:US20110021849A1

    公开(公告)日:2011-01-27

    申请号:US12842737

    申请日:2010-07-23

    CPC classification number: C07C21/18 C07C17/25 C07C17/354 C07C17/383 C07C19/08

    Abstract: A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene comprising the following stages: (i) hydrogenation of hexafluoropropylene to give 1,1,1,2,3,3-hexafluoropropane; (ii) dehydrofluorination of the 1,1,1,2,3,3-hexafluoropropane obtained in the preceding stage to give 1,2,3,3,3-pentafluoro-1-propene; (iii) hydrogenation of the 1,2,3,3,3-pentafluoro-1-propene obtained in the preceding stage to give 1,1,1,2,3-pentafluoropropane; (iv) purification of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage; and (v) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene; and (vi) purification of the 2,3,3,3-tetrafluoro-1-propene of the preceding stage.

    Abstract translation: 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法,包括以下步骤:(i)六氟丙烯的氢化,得到1,1,1,2,3, 3-六氟丙烷; (ii)前段得到的1,1,1,2,3,3-六氟丙烷的脱氟化氢,得到1,2,3,3,3-五氟-1-丙烯; (iii)在前一阶段获得的1,2,3,3,3-五氟-1-丙烯的氢化,得到1,1,1,2,3-五氟丙烷; (iv)前一阶段获得的1,1,1,2,3-五氟丙烷的纯化; 和(v)前一阶段获得的1,1,1,2,3-五氟丙烷的脱氟化氢,得到2,3,3,3-四氟-1-丙烯; 和(vi)前一阶段的2,3,3,3-四氟-1-丙烯的纯化。

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