公开(公告)号：BRPI0917836A2

公开(公告)日：2015-11-24

申请号：BRPI0917836

申请日：2009-08-18

Applicant: BASF SE

Inventor： LEITNER ANDREAS ,  FRANZKE AXEL ,  KLÖTZER MATTHIAS ,  BOCK MICHAEL ,  BAUMANN ROBERT ,  RÖTTGER RODERICH

IPC: C07C269/04

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

Inventor： SCHMIDT ANDREA ,  BOCK MICHAEL ,  RÖTTGER RODERICH ,  BAUMANN ROBERT ,  FRANZKE AXEL

IPC: C07C68/08 ,  C07C68/06 ,  C07C69/96

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).