Solubility of 2-ethyl-hexyl-2-Ethyl Hexanoate (cas 123-66-0) in binary and quaternary systems in supercritical carbon dioxide

Add time:09/25/2019    Source:sciencedirect.com

Binary and quaternary solubility of 2-ethyl-hexyl-2-ethyl hexanoate (2E2E) in supercritical carbon dioxide have been measured at flow rate of 250±10 ml/min, and (a) constant temperature of 313 K in the pressure range of 90–253 bar, (b) constant pressure of 170 bar, in the temperature range of 313–353 K, and (c) constant temperature of 313 K and pressure of 170 bar in flow rate range of 100–300 ml/min. The quaternary solubilities of 2-ethyl-1-hexanol and 2-ethyl hexanoic acid in supercritical carbon dioxide (SC-CO2) were found to be greater than of 2E2E at pressure of 170 bar, a temperature of 313 K, and a flow rate of 250±10 ml/min. There is an isosolubility range for the mixed-liquid of the acid and the ester. Solubility diminutions (∼69–75%) of 2E2E at different pressures were observed for the quaternary model system compared to the binary system in SC-CO2.

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