橡胶籽油中多价不饱和脂肪酸分离技术研究——尿素包合法分离多价不饱和脂肪酸甲酯

Separation of unsaturated fatty acids from rubber seed oil——Separation and purification of polyunsaturated fatty methyl ester

摘要: 橡胶籽油经皂化、酸化后再甲酯化,然后用尿素包合法分离其中的多价不饱和脂肪酸甲酯,分离条件为:原料配比m(混合脂肪酸甲酯,g):m(尿素,g):V(乙醇,mL)=1:1.8～2.1:2.8～3,反应温度72～78℃,反应时间120min.得到的产品中多价不饱和脂肪酸甲酯质量分数大于90%,产品收率大于35%.

Abstract: The saponification,acidification and esterification of rubber seed oil were carried out and obtained the mixed fatty methyl ester.Then polyunsaturated fatty acids were separated and purified from mixed fatty methyl ester by urea clathration.Separation conditions were:m(mixed fatty methyl ester,g):m(carbamide,g):V(alcohol,mL)=1:1.8-2.1:2.8-3,reflux time was 120 minutes.Mass fraction of multivalent unsaturated fatty methyl ester in product was over 90%.The product yield was over 35%.