文献类型：专利

英文题名：Distillation and ester exchange reaction for producing dimethyl carbonate and dihydroxy alcohols

作者：TIAN H;ZHU Y;LIU J;HAO Y;WANG H;HUANG H

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN100364956-C

公开日：2008-01-30

语种：英文

收录：DERWENT

摘要：NOVELTY - The distillation and ester exchange reaction for producing dimethyl carbonate and dihydroxy alcohols comprises counterflow contacting cyclic carbonates absorbent with mixed gas containing alkylene oxide and carbon dioxide in an absorption column, reacting alkylene oxide with carbon dioxide to obtain cyclic carbonate, the cyclic carbonate synthesized liquid entering a rectifying tower, the cyclic carbonate on top of the tower entering an reaction rectifying tower through pipe lines, carrying out ester exchange reaction with menthol at the presence of ester exchange catalyst, obtaining dimethyl carbonate and dibasic alcohol.