Liquid-Phase Synthesis of Cyanuric Acid from Urea

Molecules

Dong-Mei She¹  Hai-Lin Yu¹  Qi-Liang Huang¹  Fen-Ming Li¹ 

[1] ¹College of Science, China Agricultural University, Beijing 100193, China ²Plant Protection Institute of the Chinese Academy of Agricultural Sciences, Beijing 100193, China

关键词: cyanuric acid;    urea;    liquid-phase;    yield;   

DOI  :  10.3390/molecules15031898

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.