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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. shu

Evaluation of Middle Phase Microemulsion by Emulsibility Value

1.
Institute of Porous Flow & Fluid Mechanics, Chinese Academy of Sciences, Langfang 065007

Corresponding author: YAO Tong-Yu,
Received Date: 20 June 2003
Available Online: 14 October 2003

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.
- E(emulsibility) value,
- microemulsion phase diagrams,
- surfactants,
- oil property,
- salt breadth
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