琥珀酸二异戊酯磺酸钠的合成工艺及性能  

Synthesis process and properties of sodium diisopentyl succinate

作　　者：公丕文 陈隆旋 苗桂美 孙凌波 赵瑞阳 白佳玉 GONG Piwen;CHEN Longxuan;MIAO Guimei;SUN Lingbo;ZHAO Ruiyang;BAI Jiayu(Department of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Department of Laboratory,Central Hospital Affiliated to Shenyang Medical College,Shenyang 110000,China)

机构地区：[1]青岛科技大学化工学院,山东青岛266042 [2]沈阳医学院附属中心医院检验科,辽宁沈阳110000

出　　处：《化工科技》2023年第1期23-29,共7页Science & Technology in Chemical Industry

基　　金：山东省自然科学基金项目(ZR2022ME117);辽宁省科技厅博士计划项目(2019-BS-234)。

摘　　要：以马来酸酐和异戊醇为原料,利用酯化反应和磺化反应,采用非外加相转移催化剂条件合成了琥珀酸二异戊酯磺酸钠,优化合成工艺。较佳反应条件为酯化反应n(马来酸酐)∶n(异戊醇)∶n(对甲苯磺酸)=1.00∶2.45∶0.05,反应温度80℃,反应时间4 h;磺化反应n(琥珀酸二异戊酯)∶n(NaHSO_(3))=1.00∶1.05,反应温度130℃,反应时间4 h,重复实验产物的总收率均高于95%。产品的临界表面张力为26.83 mN/m,临界胶束浓度为0.11 mol/L,乳化分水时间为6.15 min,润湿时间为1.53 s,具有较好的乳化能力。通过工艺优化,降低了原有合成工艺中水的使用量,并实现了溶剂的回收利用,产生三废少,产品性能优良,具有较好的实际应用前景。In this study,we use maleic anhydride and isoamyl alcohol as raw materials to synthesize sodium diisopentyl succinate through esterification reaction and sulfonation reaction without extra phase transfer catalyst.The optimum reaction conditions have been obtained by optimizing the synthesis process.The esterification reaction condition is n(maleic anhydride)∶n(isoamyl alcohol)∶n(p-toluenesulfonic acid)=1.00∶2.45∶0.05 with reaction temperature of 80℃ for 4 h.The sulfonation reaction condition is n(diisopentyl succinate)∶n(NaHSO_(3))=1.00∶1.05 with reaction temperature of 130℃ for 4 h.The total yield of product(sodium diisopentyl succinate)is above 95%.The critical surface tension,critical micelle concentration,emulsifying water separation time and wetting time are 26.83 mN/m,0.11 mol/L,6.15 min and 1.53 s,respectively,which reveals the good emulsifying capacity of sodium diisopentyl succinate.The optimum synthesis process reduces the amount of water in the original synthesis process and recycle the solvent,which performs good prospect of practical application.

关 键 词：琥珀酸二异戊酯磺酸钠 阴离子表面活性剂 酯化反应 磺化反应 

分 类 号：TQ423.11[化学工程]