PRODUCTION OF PARA-XYLENE BY CATALYTICALLY REACTING 2,5-DIMETHYLFURAN AND ETHYLENE IN A SOLVENT
申请人:University of Delaware
公开号:US20140296600A1
公开(公告)日:2014-10-02
The present invention provides a renewable route to para-xylene via cycloaddition of ethylene and 2,5-dimethylfuran and subsequent dehydration with high selectivity and high yields using acidic heterogeneous catalysts and a solvent for 2,5-dimethylfuran. The use of a solvent shows significant effects in the reduction of competing side reactions including hydrolysis of 2,5-dimethylfuran to 2,5-hexanedione, alkylation of p-xylene, and polymerization of 2,5-hexanedione.
该发明提供了一种通过乙烯和2,5-二甲基呋喃的环加成以及随后使用酸性异质催化剂和2,5-二甲基呋喃溶剂进行脱水的可再生对二甲苯路径,具有高选择性和高产率。溶剂的使用在减少竞争性副反应方面产生显著效果,包括将2,5-二甲基呋喃水解为2,5-己二酮、对二甲苯的烷基化以及2,5-己二酮的聚合。