Ozidative desulfurization of thiophene by coordinated ionic liquid 3(C2H5)4NCl·(NH2)2CO as phase-transfer catalyst
For the insolubility of binary phase system of oxidative desulfurization(ODS), coordinated ionic liquid 3(C2H5)4NCl·(NH2)2CO as efficient phase-transfer catalyst (PTC) have been applied to enhance the reaction. A coordinated ionic liquid which has been synthesized from urea and tetraethyl ammonium chloride is employed as efficient PTC for ODS of model oil in the present of hydrogen peroxide and acetic acid. The experimental results show that the desulfurization rate of thiophene is up to 70.68％, under the optimal conditions of O/S=3 (molar ratios), reactive time 30 min at 40℃. The optimal amount of coordinated ionic liquid PTC is 0.20 g/18 mL model oil. The main products of oxidatiive thiophene by hydrogen peroxide and acetic acid are sulfone and sulfoxide of thiophene and SO42-.
ozidative desulphurization thiophene phase transfer catalysis coordinated ionic liquid
Sun Zhimin Zhao Dishun Li Fatang Shan Haidan
School of Chemical Engineering, Tianjin University, Tianjin 300072, China; College of Sciences, Hebe School of Chemical Engineering, Tianjin University, Tianjin 300072, China School of Chemical and Pha College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018, China
国际会议
上海
英文
3827-3830
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）