锑铁复合固体超强酸S_2O_8^(2-)/Sb_2O_3/Fe_2O_3催化合成丁醛乙二醇缩醛  

Synthesis of Butyl Aldehyde Glycol Acetal by Antimony Iron Composite Solid Super Acid S_2O_8^(2-)/Sb_2O_3-Fe_2O_3 Catalyst

作　　者：周曾艳[1] 舒华[1] 唐帮成[1] 吴思展[1] 陈美航[1] 

机构地区：[1]贵州铜仁学院生化系应用化学研究所,贵州铜仁554300

出　　处：《广州化工》2013年第10期68-70,共3页GuangZhou Chemical Industry

基　　金：贵州省科学技术基金项目([2010]2128);铜仁市科技计划项目(2012)63号-1

摘　　要：以三氯化锑和硝酸铁为主要合成原料,采用溶胶—凝胶法制备出新型固体超强酸催化剂S2O28-/Sb2O3-Fe2O3。并将催化剂用于丁醛乙二醇缩醛的合成。实验结果表明,催化剂制备的最优条件为:焙烧温度为500℃,焙烧时间为3.0 h,(NH4)2S2O8浸泡液浓度为2.0 mol/L。合成丁醛乙二醇缩醛的最佳条件为:n(乙二醇)∶n(丁醛)=1.5∶1.0,反应时间为1.2 h,催化剂用量为0.8 g,带水剂用量为12 mL,丁醛乙二醇缩醛收率可达71.5%。The novel solid super acid catalyst S2O8 2-/Sb2O3/Fe2O3 was synthesized by solgel method using three antimony chloride and ferric nitrate as the raw materials. The synthesis reaction of butyl aldehyde glycol acetal was select- ed as the probe reaction to investigate the performance of the catalyst. The experimental results showed that the optimal catalyst preparation conditions were that the calcining temperature was 500 ℃, the calcining time was 3.0 h, and the concentration of soaking liquid（ NH4 ）2S2O8 was 2.0 mol/L. Meanwhile, the optimal synthetical conditions of butyl aldehyde glycol acetal were that the molar rate of n （ ethylene glycol）/n （butyraldehyde） was 1.5, the reaction time was 1.2 h, the dosage of catalyst was 0. 8 g and the water -carrying agent dosage was 12 mL. Under the optimal conditions, the yield of butyl aldehyde glycol acetal can reach to 71.5%.

关 键 词：固体超强酸 S2O28-/Sb2O3-Fe2O3 丁醛乙二醇缩醛 催化剂 

分 类 号：TS201.2[轻工技术与工程—食品科学] O643[轻工技术与工程—食品科学与工程]