引用本文:
姚同玉, 刘福海, 刘卫东. 用乳化度评价中相微乳[J]. 应用化学,
2004, 21(6): 593-596.
Citation: YAO Tong-Yu, LIU Fu-Hai, LIU Wei-Dong. Evaluation of Middle Phase Microemulsion by Emulsibility Value[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 593-596.
Citation: YAO Tong-Yu, LIU Fu-Hai, LIU Wei-Dong. Evaluation of Middle Phase Microemulsion by Emulsibility Value[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 593-596.
用乳化度评价中相微乳
摘要:
研究了十二烷基硫酸钠、新疆石油磺酸盐、胜利石油磺酸盐3种表面活性剂,以及油相性质对微乳相图的影响。提出了参数乳化度(E,emulsibility),即在二元相图中,中间相存在的面积与三相总面积的比值。利用E值和相图评价了不同因素对中间相的影响。结果表明,表面活性剂和油相性质影响微乳相图。不同表面活性剂对微乳相图和E值具有不同的影响。新疆石油磺酸盐的微乳相图中间相高度最大,但中相存在的盐浓度范围(盐宽)最小,其E值为0.378;胜利石油磺酸盐的微乳相图始终是三相,即盐宽最大,但中间相高度最小,其E值为0.112;十二烷基硫酸钠的微乳相图中间相高度和盐宽都介于上二者之间,其E值为0.201。油相中原油含量越高,E值越小,盐宽越大。
English
Evaluation of Middle Phase Microemulsion by Emulsibility Value
Abstract:
The effects of three kinds of surfactants(dodecyl sodium sulfate, Xinjiang petroleum sulfonate, Shengli petroleum sulfonate) and oil property on the microemulsion phase diagrams have been studied by emulsibility, i.e. E value, which is difined as the ratio of middle phase area to the total area of three phases in the phase diagrams. The results show that both surfactant and property of oil greatly affect the microemulsion phase diagrams. For Xinjiang petroleum sulfonate, the middle phase has the biggest height, but the smallest salt breadth, its Evalue is 0.378; for Shengli petroleum sulfonate, the microemulsion phase diagram is always consisted of three phases, where the salt breadth is very large, but the smallest height of middle phase, its E value is 0.112; for dodecyl sodium sulfate, the height of middle phase and salt breadth are medium, and E value is 0.201. For crude higher oil content in oil phase, its E value is small and salt breadth is greater.
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Key words:
- E(emulsibility) value
- / microemulsion phase diagrams
- / surfactants
- / oil property
- / salt breadth
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