The controlled main influence factors and crystal shape of urea sulfate, XRD, hygroscopy and acidity in water in urea sulfate production are studied. The result indicates that the main effect factors are ratio of urea and sulfuric acid, reaction temperature, concentration of sulfuric acid, and the optimization are 2:1, 80℃, 95% ～ 98 % respectively. The crystal shape of urea sulfate examined under microscope is hexagonal, the XRD is different from likely productions, the hygroscopy is linear, and the acidity at same concentration is weaker than sulfuric acid, but stronger than citric acid. In the reaction conditions above, urea sulfate with stable qualities, low cost can be got. All of these can be used as references to theoretical research and industrialization application.
国家科技期刊平台
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万方数据
维普
