A novel solid acid catalyst synthesized from ZnAl2O4 spinel and its application in the esterification of acetic acid and n-butyl alcohol

作者：Wang An Qi; Wu Xiu Ling; Wang Jun Xia^*; Pan Hui; Tian Xiao Yun; Xing Yu Lin

来源：RSC Advances, 2015, 5(25): 19652-19658.

DOI：10.1039/c4ra15941a

A new spinel-style S2O82-/ZnAl2O4 solid acid catalyst was prepared by sol-gel method. The catalytic performance was evaluated by the esterification of n-butyl acetate. The structure, morphology and acidity of the samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Field emission scanning electron microscopy (FE-SEM), N-2 physisorption, X-ray photoelectron spectroscopy (XPS) and NH3 temperature programmed desorption (NH3-TPD). The results showed that the catalytic performances were significantly affected by the calcination temperature. S2O82-/ZnAl2O4-600 exhibited the highest catalytic activity of 91.7% under the optimum reaction conditions. The characterization showed that the mesoporous structure S2O82-/ZnAl2O4-600 maintained the well crystallinity of spinel as well as the spinel-style carrier in the sulfidation and recycling.

• 出版日期2015
• 单位中国地质大学（北京）