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    • 40. 发明授权
    • Method for the removal of acetylenes from olefins using ionic liquid-based solution
    • 使用离子液体溶液从烯烃中除去乙炔的方法
    • US08110716B2
    • 2012-02-07
    • US12250143
    • 2008-10-13
    • Hyun Joo LeeByoung Sung AhnHoon Sik KimJin Hyung KimJung Min Lee
    • Hyun Joo LeeByoung Sung AhnHoon Sik KimJin Hyung KimJung Min Lee
    • C07C7/148
    • C07C7/11C07C7/10Y02P20/542C07C11/107C07C11/18C07C15/46C07C11/02
    • The present invention relates to a process for removing acetylenes from olefins by using an ionic liquid-based solution, and particularly to a process for removing a small amount of acetylenes contained in olefins by using an ionic liquid-based solution where copper halide (CuX, X=halogen atom) is dissolved. In an ionic liquid-based solution used in the present invention, copper halide (CuX) is stabilized by ionic liquid, thus preventing monovalent copper ion (Cu+) from being oxidized into divalent copper ion (Cu2+), maintaining the superior activity of monovalent copper ion (Cu+) in removing acetylene for a long period of time, and remarkably increasing the selective removal of acetylene-based compounds. Moreover, an ionic liquid-based solution used in the present invention may serve as an extracting solution as well as an absorbent, thereby facilitating the operation and reducing equipment cost in comparison to the conventional extracting agent used in a slurry phase.
    • 本发明涉及通过使用离子型液体溶液从烯烃中除去炔烃的方法,特别涉及通过使用离子液体基溶液除去烯烃中所含的少量乙炔的方法,其中卤化铜(CuX, X =卤素原子)溶解。 在本发明中使用的离子型液体溶液中,通过离子液体使卤化铜(CuX)稳定化,防止了一价铜离子(Cu +)被氧化为二价铜离子(Cu 2+),保持了一价铜的优异活性 离子(Cu +)长时间除去乙炔,显着增加乙炔类化合物的选择性去除。 此外,本发明中使用的离子性液体溶液可以用作提取溶液和吸收剂,从而与浆料相中使用的常规萃取剂相比,有助于操作和降低设备成本。