中文摘要：

分别采用常规合成方法和超声辅助合成方法制得功能化离子液体N羧甲基吡啶硫酸氢盐（[CH2COOHPy]HSO4）,并利用FT-IR、1H-NMR、13C-NMR对离子液体结构进行表征,同时考察超声工艺参数对离子液体产率的影响。结果表明,与常规合成方法相比,超声辅助合成方法具有操作简单、条件温和、反应时间短和产物收率高等优点,在500 W,40 kHz超声场下反应2.5 h,离子液体中间产物产率达到95.8%;而且超声辅助制得离子液体颜色浅,杂质含量少,用于模拟油品萃取氧化脱硫其脱硫效果显著,这归因于超声作用使反应选择性明显提高。

英文摘要：

Task-specific ionic liquid N-carboxymethylpyridine hydrosulphate [CH2COOHPy]HSO4 was synthesized respectively with general method and associated with ultrasonic irradiation method. The structure of the synthesized ionic liquid was characterized by means of FT-IR,^ 1H-NMR, ^13C-NMR and the effects of the ultrasonic parameters on the yield of the ionic liquid were investigated. The results reveal that, compared with general method, the preparation of ionic liquid with ultrasonic irradiation method features simple operation, mild condition, short reaction time and higher yield. Under the ultrasonic irradiation of 500 W and 40 kHz, the yield of the intermediate product reaches 95.8% when reaction time was 2.5 h. Furthermore, the ionic liquids synthesized under ultrasound show light color, less impurities, and good performance in the extraction-oxidation desulfurization of model oil. It is attributed to that ultrasonic irradiation obviously improves the reaction selectivity.