Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (7): 625-630. Previous Articles     Next Articles

Original Articles


沈伟, 杨新艳, 黄静静, 沈江, 杜俊明, 徐华龙*   

  1. (复旦大学化学系 上海市分子催化与功能材料重点实验室 上海 200433)
  • 收稿日期:2006-03-08 修回日期:2006-05-08 出版日期:2007-04-14 发布日期:2007-04-14
  • 通讯作者: 徐华龙

Coupling Process of Dehydrogenation of 1,4-Butanediol and Hydrogenation of Dimethyl Maleate over CuO/SiO2 Catalysts

SHEN Wei; YANG Xin-Yan; HUANG Jing-Jing; SHEN Jiang; DU Jun-Ming; XU Hua-Long*   

  1. (Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433)
  • Received:2006-03-08 Revised:2006-05-08 Online:2007-04-14 Published:2007-04-14
  • Contact: XU Hua-Long

The coupling process of dehydrogenation of 1,4-butanediol and hydrogenation of dimethyl maleate over CuO/SiO2 catalysts to produce one important fine chemical γ-butyrolactone was carried out in a continuous fixed bed reactor under atmospheric pressure. Compared to the conventional reaction process, the activities of catalysts for hydrogenation of dimethyl maleate and dehydrogenation of 1,4-butanediol were enhanced through the coupling process. Under optimum reaction conditions, the conversion of 1,4-butanediol and dimethyl maleate reached 100%, and the selectivity of γ-butyrolactone was 98%. The results of XRD and TPR indicated that the optimized loading weight of CuO was about w=21%, which is in accordance with the monolayer dispersion threshold value. The active sites were Cu0, the proportion of congregated CuO were increased dramatically as CuO loading weight was higher than 21%.

Key words: 1,4-butanediol, dimethyl maleate, γ-butyrolactone, coupling process, CuO/SiO2