氮气鼓泡法制备L-丙交酯的新工艺  

Study on the New Technology for the Preparation of L-lactide with the Aid of Nitrogen Gas Bubble

作　　者：余家会[1] 罗淑芳[1] 俞磊[1] 陈群[2] 

机构地区：[1]华东师范大学生物功能材料与器件研究所,上海200062 [2]华东师范大学光谱学与波谱学教育部重点实验室,上海200062

出　　处：《广东化工》2006年第6期42-43,47,共3页Guangdong Chemical Industry

基　　金：国家自然科学基金(20504010);上海市纳米专项(0452nm028)资助项目

摘　　要：用氮气鼓泡法成功制得了L-丙交酯,此工艺路线中,氮气温度对丙交酯的生成至关重要,所得L-丙交酯粗品的纯度和产率比减压蒸馏所得L-丙交酯粗品的纯度和产率要高;用填料装置可完全吸收丙交酯;用活性炭对L-丙交酯粗品进行脱色比用沉淀法脱色效果好,收率较高。L-lactide was prepared with the aid of nitrogen gas bubble. The temperature of nitrogen is important for the preparation of L-lactide. The purity and yield of raw L-lactide prepared by nitrogen gas buble technology are higher than those of the raw L-lactide prepared by vacuum distillation. The capture of L-lactide is effective by using filling column and acetone as absorbent. The discoloring effectiveness of raw L-lactide with active carbon method is better than that of precipitation method.

关 键 词：氮气鼓泡法 L-丙交酯 制备 新工艺 

分 类 号：TQ253[化学工程—有机化工] TQ085.412