A NEW ROUTE TO RECOVER BISPHENOL A AND DIMETHYL CARBONATE FROM WASTE APOLYCARBONATE IN IONIC LIQUIDS

摘要：

An new strategy for methanolysis of polycarbonate (PC) to recover bisphenol A(BPA) and dimethyl carbonate(DMC) was studied in which PC could be methanolyzed in ionic liquid l-n-butyl-3-methylimidazolium chloride(BmimCl) without any acid or base catalyst under moderate conditions. Under the conditions of m(PC):m (BmimCl):m(CH3OH)=l:l:1.5, reaction time 2.5h and temperature 105癈, the methanolysis conversion of PC was almost 100％ and the yields of both BPA and DMC were over 95％. After easily separated from the product, the ionic liquid could be reused 8 times without obvious decrease in the conversion of PC and yields of BPA and DMC. The strategy can overcome the disadvantages existed in traditional methods such as unfeasible reuse of catalyst, tedious workup procedure and environmental problem.

作者: Fusheng Liu Zhuo Li ShitaoYu Xiao Cui Xiaoping Ge

作者单位: College of Chemical Engineering, Qingdao University of Science and Technology,Qingdao 266042,China

会议类型: 国际会议

会议名称: The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials(ISFR2009)(第五届高分子材料回收国际研讨会)

会议地点: 成都

会议语种:英文

页码: 266-271

在线出版日期: 2009-10-11（万方平台首次上网日期，不代表论文的发表时间）