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Liquid-Phase Synthesis of Cyanuric Acid from Urea
College of Science, China Agricultural University, Beijing 100193, China
Plant Protection Institute of the Chinese Academy of Agricultural Sciences, Beijing 100193, China
* Author to whom correspondence should be addressed.
Received: 30 January 2010; in revised form: 24 February 2010 / Accepted: 8 March 2010 / Published: 16 March 2010
Abstract: The focus of this paper was to identify a cheaper solvent from among diesel fuel, kerosene, sulfolane or a mixture of sulfolane and cyclohexanol for the preparation of cyanuric acid heterocyclization of urea. To obtain a higher yield, the effects of catalyst (sodium, ammonium, calcium and zinc salts) and temperature (160 °C to 220 °C) on the trimerization of urea were also carefully studied. We established the optimal reaction conditions and further validated them in our scale-up experiments.
Keywords: cyanuric acid; urea; liquid-phase; yield
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MDPI and ACS Style
She, D.-M.; Yu, H.-L.; Huang, Q.-L.; Li, F.-M.; Li, C.-J. Liquid-Phase Synthesis of Cyanuric Acid from Urea. Molecules 2010, 15, 1898-1902.
She D-M, Yu H-L, Huang Q-L, Li F-M, Li C-J. Liquid-Phase Synthesis of Cyanuric Acid from Urea. Molecules. 2010; 15(3):1898-1902.
She, Dong-Mei; Yu, Hai-Lin; Huang, Qi-Liang; Li, Fen-Ming; Li, Chun-Jiu. 2010. "Liquid-Phase Synthesis of Cyanuric Acid from Urea." Molecules 15, no. 3: 1898-1902.