Applied Chemistry, Vol.6, No.2, 979-982, November, 2002
다양한 함불소가스들의 고비점 용매에 관한 용해도 측정 및 액막에 의한 분리
Solubility of Various Fluoro-Gases in High Boiling-Point Solvents and Separation using Liquid-Supported Membranes
The solubility of various fluoro-gases in high boiling-point solvents, n-CnH2n+1OH(64, PF6, SbF6, F6O4S6) were measured at temperatures from 0 to 30 ℃, at total pressures up to 4 bar. Solubility increased significantly with the decrease of n in n-CnH2n+1OH and showed no such a difference in the types of ionic liquids. Especially, the solubility of R22 gas in these solvents increases rapidly with increases in pressure and decreases in temperature, whereas other fluoro-gases were showed a little solubility. Liquid-supported membranes were prepared with these solvents and polymer matrix and were applied to the separation of fluoro-gases including R22 gas. A high permeability and selectivity were exhibited in R22 gas against other fluoro-gases.