Selective Esterification of Ethylene Glycol Ethyl Ether over Silica-Cerous

Abstract:

With silica-cerous of high activity as catalyst, ethylene glycol ethyl ether acetate was synthesized from ethylene glycol ethyl ether and acetic acid. The proper conditions for the synthesis were obtained by a single factor experiment and orthogonal experiment. Based on 0.3 mol acetic acid, the optimum conditions were as follows: the mass ratio of silica-cerous (15% loaded sulfate cerous) / acetic acid being 0.056 : 1, the mol ratio of acetic acid / ethylene glycol ethyl ether being1 : 1.2, the amount of cyclohexane being 30 mL, reaction temperature being 90 °C, and reaction time being 2 h. Such optimal conditions give the highest yield of 99.53 % and selectivity of 100 % of ethylene glycol ethyl ether acetate. Its structure was confirmed by IR, and the catalyst still has high activity after being reused for five times.

• Periodical: Applied Mechanics and Materials (Volumes 651-653)
• Pages: 88-91
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.651-653.88
• Online since: September 2014
• Authors: Yong Jie Wang*, Shi Yao Zhu, Geng Qiang Zhang
• Keywords: Acetic Acid, Ethylene Glycol Ethyl Ether, Selective Esterification, Silica cerous

References

[1] Chunling Tian, Zhengyong Liang, Yadong Zhang. Fine Chemicals. Vol. 29(2012), p.916.

[2] Bin Li, Shuxiao Feng. Yadong Zhang. Fine Chemicals. Vol. 31(2014), p.792.

[3] Yongjie Wang, Wenzhao Li. Chinese Journal of Catalysis. Vol. 20(1999), p.205.

[4] Yongjie Wang, Wenzhao Li. React Kinet Catal Lett. Vol. 69(2000), p.169.

[5] Yongjie Wang, Wenzhao Li. React Kinet Catal Lett. Vol. 83(2004), p.195.

[6] Yongjie Wang, Yonghua Wan. Journal of the Chinese Rare Earth Society. Vol. 22(2004), p.45.

[7] Yongjie Wang, Yonghua Wan. Journal of the Chinese Rare Earth Society. Vol. 23(2004), p.59.

[8] Yongjie Wang, Hengqi Xu, Mu Zhang. Petrochmical Technology. Vol. 37(2008), p.785.