PROCESSES FOR THE PRODUCTION OF PYRROLIDONES
    9.
    发明公开
    PROCESSES FOR THE PRODUCTION OF PYRROLIDONES 审中-公开
    用于生产吡咯烷酮

    公开(公告)号:EP2571850A1

    公开(公告)日:2013-03-27

    申请号:EP11722252.1

    申请日:2011-05-17

    申请人: BioAmber S.A.S.

    IPC分类号: C07D207/27 C07D207/267

    CPC分类号: C07D207/27 C07D207/267

    摘要: Processes for making pyrrolidones include providing a clarified diammonium succinate (DAS)-containing and/or monoammonium succinate (MAS)-containing fermentation broth; distilling the broth under super atmospheric pressure at a temperature of greater than 100°C to about 300°C to form an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt% water; cooling and/or evaporating the bottoms to attain a temperature and composition sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; and converting the solid SA portion to pyrrolidones.