减压蒸馏辅助熔融结晶分离技术制备高纯二甲基亚砜

Vacuum Distillation Assist Melt Crystallization Separation Technology to Prepare High Purity Dimethyl Sulfoxide

二甲基亚砜(DMSO)是一种非质子极性溶剂,由于它对化学反应具有特殊的溶媒效应以及对许多物质的溶解特性,因此被称为"万能溶剂"。目前,在化工、制药、塑料等许多化工领域具有广泛的应用。采用减压蒸馏辅助熔融结晶分离技术制备二甲基亚砜。该方法具有操作简便、环境友好、纯化效率高等优点,为规模化生产提供了一种新的手段。

Dimethyl sulfoxide （DMSO） is an aprotic polar solvent. Because it have a special solvent effect on the chemical reac- tion and dissolution characteristics of many substances, therefore it is called the ＂ universal solvent ＂. At present, it has a wide range of applications in chemical,pharmaceutical,plastic, etc many fields of chemical industry. This work adopts the vacuum dis- tillation auxiliary melt crystallization separation technology for preparation of dimethyl sulfoxide. The method is simple, environ- mental friendly,high purification efficiency,provides a new means for scale production.