Simultaneous Synthesis of Dimethyl Carbonate and Poly（ethylene terephthalate） Using Alkali Metals as Catalysts  

作　　者：张丹 王庆印 姚洁 王越 曾毅 王公应 

机构地区：[1]Chengdu institute of Organic Chemistry.Chinese Academy of Sciences, Chengdu 610041, China [2]Graduate School of Chinese Academy of Sciences, Beijing 100039, China

出　　处：《Chinese Journal of Chemical Engineering》2007年第5期772-774,共3页中国化学工程学报（英文版）

基　　金：the National High Technology Research and Development Program of China(No.2003AA321010).

摘　　要：Dimethyl carbonate （DMC） and poly（ethylene terephthalate） was simultaneously synthesized by the transesterification of ethylene carbonate （EC） with dimethyl terephthalate （DMT） in this paper. This reaction is an excellent green chemical process without poisonous substance. Various alkali metals were used as the catalysts. The results showed alkali metals had catalytic activity in a certain extent. The effect of reaction condition was also studied. When the reaction was carded out under the following conditions： the reaction temperature 250℃, molar ratio of EC to DMT 3 ： 1, reaction time 3h, and catalyst amount 0.004 （molar ratio to DMT）, the yield of DMC was 68.9%.Dimethyl 碳酸盐(直接数字控制) 并且(乙烯 terephthalate ) 被乙烯碳酸盐(EC ) 的 transesterification 同时 poly 在这篇论文与暗淡乙醇 terephthalate (DMT ) 综合。没有有毒的物质，这反应是一个优秀绿化学过程。各种各样的碱金属被用作催化剂。结果证明碱金属在某个程度举办了催化活动。反应状况的效果也被学习。当反应在下列条件下面被执行时：反应温度 250 ° C，到 DMT 3:1 的 EC 的臼齿的比率，反应时间 3h，和催化剂总计 0.004 (到 DMT 的臼齿的比率) ，直接数字控制的收益是 68.9% 。

关 键 词：ethylene carbonate dimethyl terephthalate dimethyl carbonate poly （ethylene terephthalate） TRANSESTERIFICATION CATALYST 

分 类 号：O643.3[理学—物理化学]