中国食品添加剂Issue(4)：83-85,3.
强酸性阳离子交换树脂催化合成食用香料乙酸辛酯
Synthesis of octyl acetate by strong acidic cation exchange resin
摘要
Abstract
Octyl acetate is used as a food flavoring. It posses orange, jasmine, and peach fragrances. Octyl acetate can be synthesized by direct esterification of acetic acid with n - octanol catalyzed by strongly acidic cation exchange resin (Amberlyst 15). The effect of different parameters such as temperature, molar ratio of acetic acid to n -octanol, catalyst amount, and reaction time on the conversion of acetic acid was investigated. The best synthesis conditions offer important information for octyl acetate industrialization. The best reaction conditions were: reaction temperature of 90t , reaction time of 3h, molar ratio of acetic acid to n - octanol of 1 : 1, and catalyst amount 10% (based on the mass of acetic acid). The conversion of acetic acid can reach to 58% under above conditions. The catalyst can be used for 5 cycles without any treatment; the conversion of acetic acid can also reach to 55%. The results showed many advantages of strong acidic resin, such as high catalytic activity, easy separation, non - corrosive to equipments, and no environment pollution.关键词
乙酸辛酯/乙酸/正辛醇/强酸性阳离子交换树脂Key words
octyl acetate, acetic acid, n-octanol, cation exchange resin分类
化学工程引用本文复制引用
刘勇,卫敏,刘钟栋..强酸性阳离子交换树脂催化合成食用香料乙酸辛酯[J].中国食品添加剂,2011,(4):83-85,3.基金项目
国家自然科学基金项目(11079019、31071606),河南工业大学博士基金项目(2010BS019). （11079019、31071606）
