METHOD TO PRODUCE CIS-1-CHLORO-3,3,3-TRIFLUOROPROPENE
    22.
    发明申请
    METHOD TO PRODUCE CIS-1-CHLORO-3,3,3-TRIFLUOROPROPENE 审中-公开
    制备CIS-1-氯-3,3,3-三氟丙烯的方法

    公开(公告)号:US20140275644A1

    公开(公告)日:2014-09-18

    申请号:US13826529

    申请日:2013-03-14

    Abstract: The present invention discloses methods to produce cis-1-chloro-3,3,3-trifluoropropene in high yield by the isomerization of trans-1-chloro-3,3,3-trifluoropropene. These isomers are also known as 1233zd(Z) and 1233zd(E), respectively. This is done by using reactive distillation whereby as cis-1-chloro-3,3,3-trifluoropropene is produced, it is removed from the reaction zone. This product removal causes a shift in the thermodynamic equilibrium of the reaction system, forcing the production of additional cis isomer.

    Abstract translation: 本发明公开了通过异构化反式-1-氯-3,3,3-三氟丙烯以高产率生产顺式-1-氯-3,3,3-三氟丙烯的方法。 这些异构体也分别称为1233zd(Z)和1233zd(E)。 这通过使用反应蒸馏来进行,由此产生顺式-1-氯-3,3,3-三氟丙烯,将其从反应区除去。 该产物去除导致反应体系的热力学平衡发生变化,迫使产生另外的顺式异构体。

    PROCESS FOR THE PRODUCTION OF HCFC-1233zd
    25.
    发明申请
    PROCESS FOR THE PRODUCTION OF HCFC-1233zd 有权
    生产HCFC-1233zd的方法

    公开(公告)号:US20130211154A1

    公开(公告)日:2013-08-15

    申请号:US13757963

    申请日:2013-02-04

    Abstract: A process for the manufacture of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) at commercial scale from the reaction of HCC-240 and HF is disclosed. In one embodiment, HCC-240fa and HF are fed to a reactor operating at high pressure. Several different reactor designs useful in this process include; a stirred-tank reactor (batch and/or continuous flow); a plug flow reactor; a static mixer used as a reactor; at least one of the above reactors operating at high pressure; optionally combined with a distillation column running at a lower pressure; and combinations of the above; and/or with a distillation column. The resulting product stream consisting of 1233zd, HCl, HF, and other byproducts is partially condensed to recover HF by phase separation. The recovered HF phase is recycled to the reactor. The HCl is scrubbed from the vapor stream and recovered as an aqueous solution. The remaining organic components including the desired HCFC-1233zd are scrubbed, dried and distilled to meet commercial product specifications.

    Abstract translation: 公开了从HCC-240和HF的反应制造商业规模的1-氯-3,3,3-三氟丙烯(HCFC-1233zd)的方法。 在一个实施方案中,将HCC-240fa和HF加入到在高压下操作的反应器中。 在这个过程中有用的几种不同的反应器设计包括: 搅拌釜反应器(批次和/或连续流动); 活塞流反应器; 用作反应器的静态混合器; 上述反应器中的至少一个在高压下运行; 任选地与在较低压力下运行的蒸馏塔组合; 和上述的组合; 和/或用蒸馏塔。 由1233zd,HCl,HF和其他副产物组成的产物流部分冷凝,通过相分离回收HF。 将回收的HF相循环至反应器。 将HCl从蒸汽流中洗涤并作为水溶液回收。 将包括所需HCFC-1233zd在内的剩余有机组分进行洗涤,干燥和蒸馏以满足商业产品规格。

    Methods for removal HI/I
    28.
    发明授权

    公开(公告)号:US11912641B2

    公开(公告)日:2024-02-27

    申请号:US17893504

    申请日:2022-08-23

    Abstract: A method of producing trifluoroiodomethane (CF3I) includes providing a feedstock comprising trifluoroacetyl iodide (TFAI), passing the feedstock through at least one column charged with carbonaceous materials to remove hydrogen iodide (HI), hydrogen triiodide (HI3) and iodine (I2) from the feedstock, and providing the feedstock to a reactor to produce a trifluoroiodomethane product stream.
    Another method of producing trifluoroiodomethane (CF3I) includes providing a feedstock comprising trifluoroacetyl iodide (TFAI) to a reactor to produce a trifluoroiodomethane product stream, and passing the trifluoroiodomethane product stream from the reactor through at least one column charged with carbonaceous materials to remove hydrogen iodide (HI), hydrogen triiodide (HI3) and iodine (I2) from the trifluoroiodomethane product stream.

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