METHOD FOR OBTAINING A DIALKYL CARBONATE AND AN ALKYLENE GLYCOL

    公开(公告)号:IN4151CHN2014A

    公开(公告)日:2015-07-17

    申请号:IN4151CHN2014

    申请日:2014-06-03

    Applicant: BASF SE

    Abstract: The invention relates to a method for obtaining a dialkyl carbonate and an alkylene glycol from a material flow containing dialkyl carbonate alkylene carbonate alkylene glycol and alcohol said method having the following steps: (a) separating a material flow (5) containing dialkyl carbonate and alkylene glycol in the form of a heteroazeotrope from the material flow containing dialkyl carbonate alkylene carbonate alkylene glycol and alcohol in a distillative manner in a first distillation stage (1) and (b) separating the material flow (5) containing dialkyl carbonate and alkylene glycol in the form of a heteroazeotrope into a first raw product flow (27) which substantially contains dialkyl carbonate and a second raw product flow (29) which substantially contains alkylene glycol in a device for the purpose of a phase separation (25).

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