摘要
研究了植物油酸及其中和物／Ｔｗｅｅｎ－６０复配体系与大庆原油间界面张力随各种因素的变化规律。结果表明，当０．４０％ＮａＣｌ存在时，植物油酸中和度为０．８５，ＮａＣｌ浓度为０．９０％时，复配以０．１０％Ｔｗｅｅｎ－６０既可使体系兼容，又可使之保持较低界面张力。
The interfacial tension(IFT) between crude oil and mixed solution which is composed of partially neutralized vegetable oil acid,Tween-60 and salts was studied.The result indicated that IFT is affected not noly by concentration and neutralization ratio of vegetable oil acid but also by Tween-60 concentration.Introduction of Tween-60 into the system can improve the solubility of vegetable oil acid in aqueous solution but gives rise to increase of IFT.The effects of NaCl and CaCl_2 on IFT are relatively small.Thus,the system containing 0.90% vegetable oil acid with a neutralization ratio of 0.85,0.10% Tween-60,0.4% NaCl and 0.02% CaCl_2 is stable with low IFT.
出处
《应用化学》
CAS
CSCD
北大核心
1996年第1期54-57,共4页
Chinese Journal of Applied Chemistry
关键词
植物油酸
界面张力
复配体系
驱油体系
vegetable oil acid,neutralization ratio,interfacial tension,Tween-60,mixed system
