过氧化尿素合成工艺及其稳定剂的研究  

Synthesis and stabilizers of urea hydrogen peroxide

作　　者：李军[1] 谌晓玲[1] 熊国炎[1] 吴强[1] 

机构地区：[1]西南化工研究设计院有限公司,四川成都610225

出　　处：《天然气化工—C1化学与化工》2017年第1期22-26,共5页Natural Gas Chemical Industry

摘　　要：实验研究了湿法制备过氧化尿素的工艺条件,确定最佳条件为n(双氧水)∶n(尿素)=1.3∶1,反应温度30~50℃,结晶温度为0℃、程序降温速率为0.5℃/min,干燥温度50℃,在此条件下制备的过氧化尿素产品的质量分数达97%以上,满足了市场上对过氧化尿素纯度的要求。同时考察了一系列过氧化尿素的稳定剂和包膜剂,确定最佳的稳定剂为磷酸二氢钾,包膜剂为十二烷基苯磺酸钠。Process parameters for synthesis of urea hydrogen peroxide （UHP by wet method were investigated experimentally, and the optimal conditions were determined as follows： hydrogen peroxide/urea mole ratio of 1.3, reaction temperature of 30-50℃, crystallization temperature of 0℃, programmed cooling rate of 0.5℃/min and drying temperature of 50℃. Under above conditions, the purity of UHP product is more than 97%, which meets the market requirement. In addition, a series of stabilizers and coating agents for UHP product were tested, and the monopotassium phosphate and dodecyl benzenesulfonic were determined as the optimum stabilizers and coating agents, respectively.

关 键 词：过氧化尿素 合成 稳定剂 

分 类 号：TQ123.7[化学工程—无机化工]