2010•Technology & Development of Chemical IndustryRequires access
Study on Synthesis Technology of Urea Phosphates
Wei Wen-yee
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Abstract
The synthesis process of urea phosphates from industrial phosphoric acid and urea was studied.Optimal conditions were obtained by means of orthogonal experiments: the reaction time was 40 min,reaction temperature was 50℃,the molar ratio of phosphoric acid to urea was 1:1.05,and the content of phosphoric acid was 50% with the yield of 91.2%.When the mother liquor was circulated for 5 times,the yield was up to 90.4%.