环氧白花油脂肪酸甲酯的无羧酸法制备工艺  

Preparation of epoxidized fatty acid methyl ester of styrax tonkinensis seed oil without carboxylic acid

作　　者：陈洁[1] 聂小安[1,2] 刘振兴[1] 王义刚[1] 蒋剑春[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《中国油脂》2014年第7期69-72,共4页China Oils and Fats

基　　金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2011010);科技支撑企业后补助项目(2013BAD27Q00)

摘　　要：以白花油为原料,采用自制的季铵盐型磷钨杂多化合物为相转移催化剂,构建无羧酸的均相环氧化反应体系,并通过正交实验优化反应条件。确定的最佳反应条件为:10 g白花油脂肪酸甲酯,氯代十六烷基吡啶、磷酸与钨酸摩尔比2∶1∶4的季铵盐型磷钨杂多化合物为催化剂,双氧水用量5.67 g,双氧水滴加速度150 mL/h,反应时间0.5 h,乙酸乙酯用量20 mL。在最佳条件下制备的环氧白花油脂肪酸甲酯的环氧值可达4.67%,并可有效缩短反应时间,避免有机酸废水污染。The self-made heteropolyphosphatotungstate was used as phase transformation catalyst in the epoxidation reaction of styrax tonkinensis seed oil. The epoxidation reaction was an efficient and environ-ment friendly process without traditionally used carboxylic acid as catalyst. The reaction conditions were optimized by orthogonal experiment as follows：fatty acid methyl ester of styrax tonkinensis seed oil 10 g, molar ratio of cetylpyridinium chloride monohydrate to phosphoric acid to tung stic acid of heteropoly-phosphatotungstate 2：1：4, hydrogen peroxide dosage 5. 67 g, dropping rate of hydrogen peroxide 150 mL/h,reaction time 0. 5 h and ethyl acetate dosage 20 mL. Under these conditions, the epoxy value of epoxidized styrax tonkinensis seed oil fatty acid methyl ester could reach 4 . 67%. The process had the items of short reaction time and no organic acid waste water pollution.

关 键 词：白花油 环氧化反应 环氧白花油脂肪酸甲酯 相转移催化剂 

分 类 号：TQ645[化学工程—精细化工] TQ414