Catalytic gas phase fluorination of 1230xa to 1234yf
    21.
    发明授权
    Catalytic gas phase fluorination of 1230xa to 1234yf 有权
    催化气相氟化1230xa至1234yf

    公开(公告)号:US08158836B2

    公开(公告)日:2012-04-17

    申请号:US12978172

    申请日:2010-12-23

    摘要: The invention is directed to a process for preparing 2,3,3,3-tetrafluoropropene (1234yf), comprising: (i) contacting 1,1,2,3-tetrachloropropene (1230xa) with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 2,3,3,3-tetrafluoropropene (1234yf) and a second stream comprising HF, 2-chloro-3,3,3-trifluoro-1-propene (1233xf) and 1,1,1,2,2-pentafluoropropane (245cb); (iii) recycling at least a part of the second stream at least in part back to step (i).

    摘要翻译: 本发明涉及一种制备2,3,3,3-四氟丙烯(1234yf)的方法,其包括:(i)在气相存在下使1,1,2,3-四氯丙烯(1230xa)与氟化氢HF接触, 的氟化催化剂在足以产生反应混合物的条件下进行; (ii)将反应混合物分离成包含HCl,2,3,3,3-四氟丙烯(1234yf)的第一料流和包含HF,2-氯-3,3,3-三氟-1-丙烯(1233xf)的第二料流 )和1,1,1,2,2-五氟丙烷(245cb); (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。

    Catalytic Gas Phase Fluorination of 1233xf to 1234yf
    22.
    发明申请
    Catalytic Gas Phase Fluorination of 1233xf to 1234yf 有权
    催化气相氟化1233xf至1234yf

    公开(公告)号:US20110319675A2

    公开(公告)日:2011-12-29

    申请号:US12978241

    申请日:2010-12-23

    IPC分类号: C07C17/20

    摘要: The present invention provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The present invention also provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i).

    摘要翻译: 本发明提供一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,在气相中使1233xf与氟化氢HF接触; (ii)将反应混合物分离成包含HCl,1234yf的第一料流和包含HF,未反应的1233xf和245cb的第二料流; (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。 本发明还提供了一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,在气相中将1233xf与氟化氢HF接触; (ii)将反应混合物分离成HCl和含有氟化产物的料流; (iii)将含有氟化产物的物流分离成包含1234yf的第一物流和包含HF,未反应的1233xf和245cb的第二物流; (iv)至少部分地将至少一部分第二流再循环到步骤(i)。

    Catalytic Gas Phase Fluorination of 1233xf to 1234yf

    公开(公告)号:US20110160497A1

    公开(公告)日:2011-06-30

    申请号:US12978241

    申请日:2010-12-23

    IPC分类号: C07C17/20

    摘要: The present invention provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The present invention also provides a process for preparing 1234yf, comprising: (i) contacting 1233xf with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, unreacted 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i).

    Catalytic Gas Phase Fluorination of 1230xa to 1234yf
    25.
    发明申请
    Catalytic Gas Phase Fluorination of 1230xa to 1234yf 有权
    催化气相氟化1230xa至1234yf

    公开(公告)号:US20110155942A1

    公开(公告)日:2011-06-30

    申请号:US12978172

    申请日:2010-12-23

    摘要: The invention is directed to a process for preparing 2,2,2,3-tetrafluoropropene (1234yf), comprising: (i) contacting 1,1,2,3-tetrachloropropene (1230xa) with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 2,2,2,3-tetrafluoropropene (1234yf) and a second stream comprising HF, 2-chloro-3,3,3-trifluoro-1-propene (1233xf) and 1,1,1,2,2-pentafluoropropane (245cb); (iii) recycling at least a part of the second stream at least in part back to step (i).

    摘要翻译: 本发明涉及一种制备2,2,2,3-四氟丙烯(1234yf)的方法,其包括:(i)在气相存在下将1,1,2,3-四氯丙烯(1230xa)与氟化氢HF接触, 的氟化催化剂在足以产生反应混合物的条件下进行; (ii)将反应混合物分离成包含HCl,2,2,2,3-四氟丙烯(1234yf)的第一料流和包含HF,2-氯-3,3,3-三氟-1-丙烯(1233xf)的第二料流 )和1,1,1,2,2-五氟丙烷(245cb); (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。

    Process for the preparation of fluorinated compounds
    26.
    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:US09255047B2

    公开(公告)日:2016-02-09

    申请号:US12602707

    申请日:2009-08-19

    摘要: A subject-matter of the invention is a process for the preparation of 2,3,3,3-tetrafluoro-1-propene which comprises 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; and (iv) dehydrofluorination of the 1,1,1,2,3-pentafluoropropane obtained in the preceding stage to give 2,3,3,3-tetrafluoro-1-propene. Stages (ii) and (iv) are carried out using a water and potassium hydroxide mixture with the potassium hydroxide representing between 58 and 86% by weight of the mixture and at a temperature of between 110 and 180° C.

    摘要翻译: 本发明的主题是制备2,3,3,3-四氟-1-丙烯的方法,其包括以下步骤:(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; 和(iv)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。 阶段(ii)和(iv)使用氢氧化钾与氢氧化钾混合物进行,其中氢氧化钾占混合物重量的58-86%,在110-180℃的温度下进行。

    Catalytic gas phase fluorination of 1230xa to 1234yf
    27.
    发明授权
    Catalytic gas phase fluorination of 1230xa to 1234yf 有权
    催化气相氟化1230xa至1234yf

    公开(公告)号:US08309774B2

    公开(公告)日:2012-11-13

    申请号:US13416730

    申请日:2012-03-09

    摘要: The invention is directed to a process for preparing 2,2,2,3-tetrafluoropropene (1234yf), comprising: (i) contacting 1,1,2,3-tetrachloropropene (1230xa) with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 2,2,2,3-tetrafluoropropene (1234yf) and a second stream comprising HF, 2-chloro-3,3,3-trifluoro-1-propene (1233xf) and 1,1,1,2,2-pentafluoropropane (245cb); (iii) recycling at least a part of the second stream at least in part back to step (i).

    摘要翻译: 本发明涉及一种制备2,2,2,3-四氟丙烯(1234yf)的方法,其包括:(i)在气相存在下将1,1,2,3-四氯丙烯(1230xa)与氟化氢HF接触, 的氟化催化剂在足以产生反应混合物的条件下进行; (ii)将反应混合物分离成包含HCl,2,2,2,3-四氟丙烯(1234yf)的第一料流和包含HF,2-氯-3,3,3-三氟-1-丙烯(1233xf)的第二料流 )和1,1,1,2,2-五氟丙烷(245cb); (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。

    Process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf)
    28.
    发明授权
    Process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf) 有权
    纯化2,3,3,3-四氟-1-丙烯(HFO-1234yf)的方法

    公开(公告)号:US08252964B2

    公开(公告)日:2012-08-28

    申请号:US13001663

    申请日:2009-06-08

    IPC分类号: C07C17/38

    CPC分类号: C07C17/389 C07C21/18

    摘要: The subject of the invention is a process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf). More particularly, it relates to a purification process in which 2,3,3,3-tetrafluoro-1-propene, comprising impurities based on halogen compounds, is brought into contact with an adsorbent, preferably molecular sieves and advantageously molecular sieves having a pore opening with an average diameter between 5 and 11 Å, preferably between 5 and 9 Å.

    摘要翻译: 本发明的主题是用于纯化2,3,3,3-四氟-1-丙烯(HFO-1234yf)的方法。 更具体地说,本发明涉及一种纯化方法,其中将包含基于卤素化合物的杂质的2,3,3,3-四氟-1-丙烯与吸附剂,优选分子筛和有利的分子筛接触,所述分子筛具有孔 平均直径在5和11埃之间,优选在5和9之间。

    Catalytic Gas Phase Fluorination of 243db to 1234yf
    29.
    发明申请
    Catalytic Gas Phase Fluorination of 243db to 1234yf 有权
    催化气相氟化243db至1234yf

    公开(公告)号:US20110160499A1

    公开(公告)日:2011-06-30

    申请号:US12978288

    申请日:2010-12-23

    IPC分类号: C07C17/357

    摘要: The invention provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 1234yf and a second stream comprising HF, 1233xf and 245cb; (iii) recycling at least a part of the second stream at least in part back to step (i). The invention also provides a process for preparing 1234yf, comprising: (i) contacting 243db with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into HCl and a stream containing the fluorinated products; (iii) separating said stream containing the fluorinated products into a first stream comprising 1234yf and a second stream comprising HF, 1233xf and 245cb; (iv) recycling at least a part of the second stream at least in part back to step (i).

    摘要翻译: 本发明提供了一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,使气体中的243db与氟化氢HF接触; (ii)将反应混合物分离成包含HCl,1234yf和包含HF,1233xf和245cb的第二料流的第一料流; (iii)至少部分地将第二流的至少一部分再循环回到步骤(i)。 本发明还提供了一种制备1234yf的方法,其包括:(i)在足以产生反应混合物的条件下,在氟化催化剂存在下,将气体中的243db与氟化氢HF气相接触; (ii)将反应混合物分离成HCl和含有氟化产物的料流; (iii)将含有氟化产物的物流分离成包含1234yf的第一物流和包含HF,1233xf和245cb的第二物流; (iv)至少部分地将至少一部分第二流再循环到步骤(i)。

    PROCESS FOR THE PURIFICATION OF 2,3,3,3-TETRAFLUORO-1-PROPENE (HFO-1234YF)
    30.
    发明申请
    PROCESS FOR THE PURIFICATION OF 2,3,3,3-TETRAFLUORO-1-PROPENE (HFO-1234YF) 有权
    2,3,3,3-四氢-1-丙烯(HFO-1234YF)的纯化方法

    公开(公告)号:US20110105809A1

    公开(公告)日:2011-05-05

    申请号:US13001663

    申请日:2009-06-08

    IPC分类号: C07C17/389

    CPC分类号: C07C17/389 C07C21/18

    摘要: The subject of the invention is a process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf). More particularly, it relates to a purification process in which 2,3,3,3-tetrafluoro-1-propene, comprising impurities based on halogen compounds, is brought into contact with an adsorbent, preferably molecular sieves and advantageously molecular sieves having a pore opening with an average diameter between 5 and 11 Å, preferably between 5 and 9 Å.

    摘要翻译: 本发明的主题是用于纯化2,3,3,3-四氟-1-丙烯(HFO-1234yf)的方法。 更具体地说,本发明涉及一种纯化方法,其中将包含基于卤素化合物的杂质的2,3,3,3-四氟-1-丙烯与吸附剂,优选分子筛和有利的分子筛接触,所述分子筛具有孔 平均直径在5和11埃之间,优选在5和9之间。