摘要
在超声辅助条件下,采用自制的CI催化剂,对碳酸二甲酯与苯酚酯交换法反应合成碳酸二苯酯进行研究,寻找最佳的反应条件。实验结果表明反应在超声功率为55%、175℃下,碳酸二甲酯与苯酚的摩尔比为0.85︰1,碳酸二甲酯滴加速率为:1.5 mL/min,催化剂添加量3%,反应时间为12 h,碳酸二苯酯的产率可以达到56.78%.通过红外光谱分析确定了所制备的产物即为碳酸二苯酯,气相色谱分析确定产品的含量为99.53%。
The synthesis of the diphenyl carbonate by ester exchange was studied with CI as catalyst under ultrasound irradiation, The optimum reaction conditions were ascertained as follows： radiation power of 55 %, the molar ratio of dimethyl carbonate to phenol of 0.85 ： 1, The rate of dimethyl carbonate 1.5 mL/min, amount of catalyst 3 %,temperature of 175 ℃ under 12 h ultrasound irradiation. Under the optimum conditions, the average conversion ratio was 56.78 %. The structure of the sample was analyzed and characterized by method of FTIR and GC and and its purity can achieve 99.53 %.
出处
《广东化工》
CAS
2012年第16期43-44,48,共3页
Guangdong Chemical Industry
基金
陕西省2010年科技计划项目(2010k07-08)
关键词
超声强化
合成
碳酸二苯酯
工艺
ultrasonic enhancement： synthesis： diphenylcarbonate： technics
