PROCESS FOR THE SEPARATION AND PURIFICATION OF A MIXED DIOL STREAM
    11.
    发明申请
    PROCESS FOR THE SEPARATION AND PURIFICATION OF A MIXED DIOL STREAM 有权
    混合二醇流的分离和纯化方法

    公开(公告)号:US20120184783A1

    公开(公告)日:2012-07-19

    申请号:US13431308

    申请日:2012-03-27

    IPC分类号: C07C29/86

    摘要: Disclosed is a process for the purification of a mixed diol stream. The mixed diol stream comprising two-, three-, and four-carbon diols is separated into component diols by extraction with a hydrophobic solvent mixture. The diols recovered in the extractant may be removed from the extractant stream by back extraction with water or by distillation with an azeotrope-forming agent present, preferably an azeotroping agent already present in the extractant mixture.

    摘要翻译: 公开了一种纯化混合二醇流的方法。 包含二,三和四碳二醇的混合二醇料流通过用疏水溶剂混合物萃取分离成组分二醇。 在萃取剂中回收的二醇可以通过用水反萃取或用存在的共沸物形成剂,优选已经存在于萃取剂混合物中的共沸剂进行蒸馏,从萃取剂流中除去。

    Separation of 2,5-dihydrofuran from water by extractive distillation
    14.
    发明授权
    Separation of 2,5-dihydrofuran from water by extractive distillation 失效
    通过萃取蒸馏从水中分离2,5-二氢呋喃

    公开(公告)号:US06353121B1

    公开(公告)日:2002-03-05

    申请号:US09791055

    申请日:2001-02-22

    IPC分类号: C07D30726

    CPC分类号: C07D307/28

    摘要: Disclosed is a process for separating 2,5-dihydrofuran (2,5-DHF) from aqueous solution of 2,5-DHF by extractive distillation using certain organic liquids as the extraction agent.

    摘要翻译: 公开了一种通过使用某些有机液体作为萃取剂的萃取蒸馏从2,5-DHF水溶液中分离2,5-二氢呋喃(2,5-DHF)的方法。