新型表面活性剂—α—磺基脂肪酸甲酯钠盐(MES)的研制

THE PREPARATION OF SODIUM α-SULFO METHYL FATTY ACID ESTER(MES)—A NEW TYPE OF SURFACTANT

利用实验室规模的膜式磺化器和空气稀释的SO_3气体,分别对饱和棕榈油脂肪酸甲酯和不饱和棉子油脂肪酸甲酯进行连续磺化,并合成了MES.分析了合成条件及其它因素对MES产品色泽和二钠盐含量的影响,并根据实验结果,对磺化反应机理进行了探讨.

This paper presents separately the preparation of Na a-sulfo methyl fatty acid ester from saturated and unsaturated methyl fatty acid ester with vaporized SO_3(diluted with dry air)in a laboratory continuous thin film sulfonation reactor.The color and content of disodium salt of MES are greatly influenced by the sulfonation conditions and other factors.The sulfonation mechanism is discussed on the basis of experimental results.