采用二次内酯化方法从葡醛内酯生产废液中回收产品  

Retrieving Glucurolactone from the Waste Liquid by the Second Lactonization

作　　者：郭耀基[1] 王晓峰[2] 唐黎华[3] 

机构地区：[1]江南大学生物工程学院,江苏无锡214036 [2]华东理工大学成人教育学院,上海200237 [3]华东理工大学化工学院,上海200237

出　　处：《无锡轻工大学学报（食品与生物技术）》2004年第2期67-70,75,共5页Journal of Wuxi University of Light Industry

摘　　要：分析了葡醛内酯传统工艺中淀粉原料、中间产物及产品流失的主要原因,提出了从葡醛内酯生产废液中通过二次内酯化进一步回收产品的可行性方案.结果表明,在V(硝酸)∶V(冰醋酸)∶V(废液)=0.6∶1.0∶10,反应温度为60℃,反应时间为60min的条件下,葡醛内酯提取物每100mL废液可达6g,纯度为82%.The main reasons why the starch,the middle and final products run off from the waste liquid by the classical technology were studied. In this article, first of all, the feasibility of retrieving glucurolactone from the waste liquid by the second lactonization was studied.When the temperature was 60 ℃, and volume ratios of nitric acid to acetic acid and to waste liquid were (0.6∶1.0∶10), about eight grams of distilling materials were obtained from 100 mL of the waste liquid,with the purity of 82%.

关 键 词：二次内酯化方法 葡醛内酯 生产废液 回收 氧化淀粉 水解率 药物 

分 类 号：X783[环境科学与工程—环境工程]