Preparation of Ammonium Cerium Phosphate via Low-heating Solid State Reaction and Its Catalysis for Benzyl Acetate Synthesis

• Published in: Chinese journal of chemistry Vol. 28; no. 3; pp. 378 - 382
• Main Authors: Liao, Sen, Chen, Zhipeng, Liu, Gang, Tian, Xiaozhen, Wang, Tianshun, Wu, Wenwei
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.03.2010; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Subjects: ammonium cerium phosphate; benzyl acetate; data mining technology; solid-state reaction; supported catalyst
• ISSN: 1001-604X; 1614-7065
• DOI: 10.1002/cjoc.201090082

Ammonium cerium phosphate was prepared with (NH4)3PO4·3H2O and Ce(SO4)2·4H2O as raw materials and PEG‐400 as surfactant via a solid state reaction at low‐heating temperature. The characterization result of XRD indicates that the molecular formula of the product was (NH4)2Ce(PO4)2·H2O. The synthesis of benzyl acetate was carried out with H2SO4/ammonium cerium phosphate as catalyst, and uniform experimental design as well as data mining technology was applied to the experiments, in which the effect of the reaction time, the molar ratio of acid to alcohol and the amount of catalyst on the conversion yield of acetic acid were studied. When benzalcohol was 0.10 mol, under the optimal reaction conditions, i.e. reaction time of 174 min, 2.02 of molar ratio of acid to alcohol and 0.5 g of catalyst, the esterification rate of acetic acid was 97.9%. The ammonium cerium phosphate had potential for industry application since it not only was feasible and simple in synthesis technics, but also had good catalysis activity for the synthesis of benzyl acetate. The ammonium cerium phosphate was prepared with (NH4)3PO4·3H2O and Ce (SO4)2·4H2O as raw materials and PEG‐400 as surfactant via a solid state reaction at low‐heating temperature. The synthesis of benzyl acetate was carried out with H2SO4/ammonium cerium phosphate as catalyst, and uniform experimental design as well as data mining technology was applied to the experiments, in which the effect of the reaction time, the molar ratio of acid to alcohol and the amount of catalyst on the conversion yield of acetic acid were studied. Under the optimal reaction conditions, the esterification rate of acetic acid was 97.9%.