【摘要】 探讨了以氯乙酸母液回收的二氯乙酸为原料 ,制取尿囊素的工艺流程及反应原理 ,研究了各步反应温度、反应时间及物料加入量等因素对尿囊素收率的影响 获得了较佳的工艺条件 在该条件下 ,尿囊素的收率可达 4 9 6 8% ,优于文献值 30 3% 该工艺的应用既可减少废水的排放 ,保护环境 ,又可获得良好的经济效益更多还原

【Abstract】 The main raw material is dichloro acetic acid which reclaited from mother liquor of chloro-acetic acid.Process flow and reaction principle of allantoin are discussed,and every factor which may affect the yield of allantoin,such as reaction temperature,reaction time,material quantity,is studied.Significant results have been obtained that the yield of allantoin can reach 49.68%.It is better than the reported yield 30.3% under these process conditions.Using this process,the amount of waste water is decreased,the environment is protected,and better economic effect is gotten.更多还原