期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 300, 期 1, 页码 237-243出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2006.03.047
关键词
hydrous zirconia; phosphomolybdic acid; esterification; n-butyl acetate; rate constant
A series of ecofriendly solid acid catalyst was synthesized by phosphomolybdic acid impregnated on hydrous zirconia (ZPMA) by an incipient wetness impregnation technique. The support and the resulting catalysts were characterized by X-ray diffraction, FTIR, EPNIA, BET surface area, acid sites. etc. These studies indicate that the phosphomolybdic acid keeps its Keggin-type structure unaltered up to 500 degrees C. Catalytic activities of the material were evaluated for the esterification of acetic acid reaction. The 12 wt% of phosphomolybdic acid supported on hydrous zirconia shows highest surface area, acid sites and gives about 86% conversion with 100% selectivity of n-butyl acetate. (c) 2006 Elsevier Inc. All rights reserved.
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