Citation: ZHOU Dan, YU Wen, XU Qin-Qin, YIN Jian-Zhong. Solubilization of Polyalcohol in Supercritical CO₂ Microemulsion[J]. Acta Physico-Chimica Sinica, ;2011, 27(06): 1300-1304. doi: 10.3866/PKU.WHXB20110616 shu

Solubilization of Polyalcohol in Supercritical CO₂ Microemulsion

1.
State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China

Received Date: 1 November 2010
Available Online: 28 April 2011
Fund Project: 国家自然科学基金(20976028)资助项目 (20976028)

We mainly investigated the phase behavior of the AOT (sodium bis-(2-ethylhexyl) sulfosuccinate/CO₂/ethanol/water quaternary system and the AOT/CO₂/ethanol/1,3-propanediol (1,3-PDO)/water quinary system at 30-50 °C and at pressures of 6.9-10.3 MPa. AOT was used as the surfactant and ethanol was used as the cosolvent at 1,3-PDO concentrations of 2.5%, 5.0%, and 7.5%(w). This result shows that a thermodynamically stable microemulsion can be formed by controlling the operating pressures and temperatures. Subsequently, the selective extraction of 1,3-PDO from the aqueous solution can be controlled using appropriate temperatures and pressures, which is useful for the practical application of this technique in industry.
- Supercritical CO₂ microemulsion,
- Sodium bis-(2-ethylhexyl) sulfosuccinate,
- 1,3-Propanediol,
- Phase behavior,
- Solubilization
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沈阳化工大学材料科学与工程学院沈阳 110142

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Solubilization of Polyalcohol in Supercritical CO₂ Microemulsion