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以AEO-9和SAS60为表面活性剂,醇(无水乙醇、正丁醇、正戊醇、正辛醇)为助表面活性剂对水和石油醚进行了微乳化实验,考察了表面活性剂和醇的种类、含量,盐的含量,醇与表面活性剂的质量比对微乳液相行为的影响。结果表明,当AEO-9与SAS60质量比为7∶3时,协同效应最好;正戊醇做助表面活性剂时,拟三元相图中微乳区的面积最大;当正戊醇与表面活性剂的质量比值为0.8时,体系的溶油量最大;当微乳液质量浓度为1.824 g/L时,表面张力为24.49 m N/m;微乳液的质量分数为0.3%时,界面张力可以降至9.25×10-4m N/m。
The microemulsification experiments of water and petroleum ether with AEO-9 and SAS60 as surfactants and alcohol (anhydrous ethanol, n-butanol, n-amyl alcohol and n-octanol) as cosurfactants were carried out. And alcohol type, content, salt content, alcohol and surfactant mass ratio on the microemulsion phase behavior. The results showed that when the mass ratio of AEO-9 to SAS60 was 7: 3, the synergistic effect was the best. When n-amyl alcohol was used as cosurfactant, the area of microemulsion in quasi-ternary phase diagram was the largest. When the mass ratio of surfactant is 0.8, the amount of oil dissolved in the system is the largest. When the microemulsion concentration is 1.824 g / L, the surface tension is 24.49 mN / m. When the mass fraction of microemulsion is 0.3%, the interfacial tension Can be reduced to 9.25 × 10-4m N / m.