| abstract |
The invention discloses a kind of isopropylhydroxyla distillation systems of high yield, the distillation system is under vacuum condition, the vacuum system control vacuum degree is in -0.07Mpa~-0.090Mpa, it specifically includes: reaction kettle, consistent with process flow direction, the reaction kettle is sequentially connected by pipeline and rectifying column, condenser, collecting tank I, collecting tank II and vacuum system；Wherein, rectifying tower side middle and upper part is equipped with phegma entrance, and the bottom the collecting tank I is exported equipped with phegma, and the phegma outlet is connect by the liquid pump that flows back with the phegma entrance.The system separative efficiency is high, can effectively mitigate clogging, improves product yield, increases economic efficiency. |