中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (1): 54-57.

• 研究论文 • 上一篇    下一篇

植物油酸/Tween-60复配体系与原油间的界面张力

刘木辛, 徐桂英, 徐永利, 李方, 李干佐   

  1. 山东大学胶体与界面化学研究所 济南 250100
  • 收稿日期:1995-05-15 修回日期:1995-09-28 出版日期:1996-02-10 发布日期:1996-02-10

Interfacial Tension between Mixed Soluton of Vegetable Oil Acid/Tween-60 and Crude Oil

Liu Muxin, Xu Guiying, Xu Yongli, Li Fang, Li Ganzuo   

  1. Institute of Colloid and Interface Chemistry, Shandong University, Jinan 250100
  • Received:1995-05-15 Revised:1995-09-28 Published:1996-02-10 Online:1996-02-10

PDF

380

被引次数

1

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。

关键词: 植物油酸, 中和度, 界面张力, Tween-60, 复配体系

Abstract: 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 CaCl2 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% CaCl2 is stable with low IFT.

Key words: vegetable oil acid, neutralization ratio, interfacial tension, Tween-60, mixed system

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