화학공학소재연구정보센터
Fluid Phase Equilibria, Vol.291, No.2, 159-165, 2010
Effect of NaOH on the solubility of fluorocarbon in alcohol-NaOH systems
We propose a dechlorination process that allows safe and environmental conversion of chlorinated fluorocarbons. Starting with dissolving a fluorocarbon in an alcohol-NaOH solution, the fluorocarbons are reacted with alcohol-NaOH solvents at room temperature and pressure. In this work, the effect of the NaOH concentration on the solubility of CCl2F2 (CFC-12), CH2F2 (HFC-32), C2HF5 (HFC-125), C2H2F4 (HFC-134a) and C2H4F2 (HFC-152a) in methanol-NaOH, ethanol-NaOH and 1-propanol-NaOH solutions was measured. The experimental salting-out effects can be explained by solvation of a few alcohol molecules on sodium ion. Setchenov coefficients were determined and found to be independent of temperature. (C) 2009 Elsevier B.V. All rights reserved.