Methods for Removing Acidic Impurities from Halogenated Propenes
    82.
    发明申请
    Methods for Removing Acidic Impurities from Halogenated Propenes 有权
    从卤代丙烯中除去酸性杂质的方法

    公开(公告)号:US20170050905A1

    公开(公告)日:2017-02-23

    申请号:US15232089

    申请日:2016-08-09

    CPC classification number: C07C17/389 C07C21/18

    Abstract: This invention pertains to a method for removing acidic impurity from halogenated olefins, especially methods for removing acidic impurity from halogenated propenes, and even more particularly to methods for removing acidic impurity from 1,3,3,3-tetrafluoro-1-propene (HFO-1234ze), 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf), 1-chloro-3,3,3-trifluoro-1-propene (HCFO-1233zd), and 2-chloro-3,3,3-trifluoro-1-propene (HCFO-1233xf). The method is conducted by passing the halogenated olefin stream, in liquid or gas form, through a solid adsorbent bed, which contains at least one acid reactive agent.

    Abstract translation: 本发明涉及从卤代烯烃中除去酸性杂质的方法,特别是从卤化丙烯除去酸性杂质的方法,更具体地说,涉及从1,3,3,3-四氟-1-丙烯(HFO)中除去酸性杂质的方法 -1234ze),2,3,3,3-四氟-1-丙烯(HFO-1234yf),1-氯-3,3,3-三氟-1-丙烯(HCFO-1233zd)和2-氯-3 ,3,3-三氟-1-丙烯(HCFO-1233xf)。 该方法通过使液体或气体形式的卤代烯烃流通过含有至少一种酸反应剂的固体吸附剂床进行。

    Process for producing 2-chloro-3,3,3-trifluoropropene and 2,3,3,3-tetrafluoropropene
    83.
    发明授权
    Process for producing 2-chloro-3,3,3-trifluoropropene and 2,3,3,3-tetrafluoropropene 有权
    2-氯-3,3,3-三氟丙烯和2,3,3,3-四氟丙烯的制备方法

    公开(公告)号:US09540295B2

    公开(公告)日:2017-01-10

    申请号:US14348819

    申请日:2012-09-29

    Abstract: The present invention relates, in part, to the discovery that high temperatures during the fluorination of 1,1,2,3-tetrachloropropene (HCO-1230xa) to 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) results in catalyst instability, reduced selectivity of the conversion, and/or the formation of one or more undesirable by-products. By controlling the reaction temperature, it is shown that the catalyst life may be extended and the selectivity of the reaction improved. Such control similarly results in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (HFO-1234yf).

    Abstract translation: 本发明部分地涉及在1,1,2,3-四氯丙烯(HCO-1230xa)氟化成2-氯-3,3,3-三氟丙烯(HCFO-1233xf)期间的高温结果的发现 催化剂不稳定性,转化率的选择性降低,和/或一种或多种不期望的副产物的形成。 通过控制反应温度,可以看出可延长催化剂寿命,提高反应选择性。 这种控制类似地导致某些氢氟烯烃,特别是2,3,3,3-四氟丙烯(HFO-1234yf)的生产的总体改进。

    PROCESS FOR PRODUCING 1-CHLORO-3,3,3-TRIFLUOROPROPENE IN AN IONIC LIQUID
    86.
    发明申请
    PROCESS FOR PRODUCING 1-CHLORO-3,3,3-TRIFLUOROPROPENE IN AN IONIC LIQUID 有权
    在离子液体中生产1-氯-3,3,3-三氟丙烯的方法

    公开(公告)号:US20150105596A1

    公开(公告)日:2015-04-16

    申请号:US14507914

    申请日:2014-10-07

    CPC classification number: C07C17/206 C07B2200/09 C07C17/25 C07C21/18

    Abstract: This invention relates to methods and systems for producing hydrochlorofluoro-olefins, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) by the fluorination of a starting material selected from the group consisting of 1,1,1,3,3-pentachloropropane (HCC-240fa), 1,1,3,3-tetrachloropropene, and 1,1,1,3-tetrachloropropene, alone or in combination, in an ionic liquid.

    Abstract translation: 本发明涉及通过氟化起始原料来制备氢氯氟烯烃,特别是1-氯-3,3,3-三氟丙烯(HCFO-1233zd)的方法和系统,该原料选自1,1,1,3 ,3-五氯丙烷(HCC-240fa),1,1,3,3-四氯丙烯和1,1,1,3-四氯丙烯,在离子液体中单独或组合使用。

    METHOD FOR MITIGATING HCL GENERATION DURING 1,1,2,3-TETRACHLOROPROPENE PURIFICATION
    90.
    发明申请
    METHOD FOR MITIGATING HCL GENERATION DURING 1,1,2,3-TETRACHLOROPROPENE PURIFICATION 有权
    在1,1,2,3-四氯丙烯纯化过程中缓解HCL产生的方法

    公开(公告)号:US20140275660A1

    公开(公告)日:2014-09-18

    申请号:US13804738

    申请日:2013-03-14

    Abstract: 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 %.

    Abstract translation: 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%。

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