METHOD FOR STORING FLUORO-2-BUTENE
    1.
    发明公开

    公开(公告)号:US20230373889A1

    公开(公告)日:2023-11-23

    申请号:US18031542

    申请日:2021-10-08

    发明人: Atsushi SUZUKI

    IPC分类号: C07C17/42

    CPC分类号: C07C17/42

    摘要: Provided is a method for storing a fluoro-2-butene by which isomerization reaction is unlikely to proceed during storage. A fluoro-2-butene represented by general formula C4HxFy where x is 0 or more and 7 or less, y is 1 or more and 8 or less, and x+y is 8 contains or does not contain hydrogen fluoride as an impurity. The fluoro-2-butene is stored in a container in which the concentration of hydrogen fluoride is 100 ppm by volume or less in a gas phase portion when the fluoro-2-butene contains hydrogen fluoride.

    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf)
    8.
    发明授权
    Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) 有权
    2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的制备方法

    公开(公告)号:US09573867B2

    公开(公告)日:2017-02-21

    申请号:US14986750

    申请日:2016-01-04

    摘要: The present invention relates to an improved method for manufacturing 2-chloro-3,3,3-trifluoropropene, (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.

    摘要翻译: 本发明涉及一种用于制备2-氯-3,3,3-三氟丙烯(HCFC-1233xf)的改进方法,其通过使1,1,2,3-四氯丙烯,1,1,1,2,3-五氯丙烷 ,和/或2,3,3,3-四氯丙烯与氟化氢在气相反应容器中在气相氟化催化剂和稳定剂存在下反应。 HCFC-1233xf是生产2,3,3,3-四氟丙烯(HFO-1234yf)的中间体,它是具有低全球变暖潜能的制冷剂。

    Method for mitigating HCL generation during 1,1,2,3-tetrachloropropene purification
    10.
    发明授权
    Method for mitigating HCL generation during 1,1,2,3-tetrachloropropene purification 有权
    在1,1,2,3-四氯丙烯净化过程中减轻HCL产生的方法

    公开(公告)号:US09090531B2

    公开(公告)日:2015-07-28

    申请号:US13804738

    申请日:2013-03-14

    摘要: This invention is directed to a method for mitigating HCl generation during 1230xa purification, which comprises the steps of; (a) adding a chelating agent into 1230xa crude, and (b) conducting the 1230xa purification in the presence of said chelating agent at a quantity sufficient to reduce or prevent 1230xa decomposition. Examples of chelating agent include tributyl phosphate (TBP), tripropyl phosphate (TPP), and triethyl phosphate (TEP). The concentration of chelating agent in 1230xa crude can range from 0.001 to 20 wt %, preferably from 0.01 to 10 wt %, and more preferably from 0.1 to 5 wt %.

    摘要翻译: 本发明涉及一种减轻1230xa纯化期间HCl产生的方法,其包括以下步骤: (a)向1230xa粗品中加入螯合剂,和(b)在所述螯合剂存在下,以足以减少或防止1230×分解的量进行1230xa纯化。 螯合剂的实例包括磷酸三丁酯(TBP),磷酸三丙基酯(TPP)和磷酸三乙酯(TEP)。 1230xa原料中螯合剂的浓度可以为0.001〜20重量%,优选为0.01〜10重量%,更优选为0.1〜5重量%。