Vapor-liquid equilibria for hydrogen fluoride + difluoromethane, + 1,1,1,2-tetrafluoroethane, and + 1-chloro-1,2,2,2-tetrafluoromethane at 283.3 and 298.2 K

Journal Article · Mon Jan 01 04:00:00 EST 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9500946· OSTI ID:201445

Lee, J; Kim, H ^[1]; Lim, J S; Kim, J D; Lee, Y Y ^[2]

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1. Seoul National Univ. (Korea, Republic of). Dept. of Chemical Engineering
2. KIST, Seoul (Korea, Republic of). CFC Alternatives Technology Center

The production of refrigerants involves the separation of multicomponent mixtures containing hydrogen fluoride, hydrogen chloride, and various chlorinated and fluorinated hydrocarbons. Therefore, it is essential to known the phase behavior of these mixtures. Isothermal vapor-liquid equilibria for hydrogen fluoride (HF) + difluoromethane (HFC-32), HF + 1,1,1,2-tetrafluoroethane (HFC-134a), and HF + 1-chloro-1,2,2,2-tetrafluoroethane (HCFC-124) were measured by the P-T-x method at 283.3 and 298.2 K. Vapor compositions were calculated from these results. Among these systems, the HF + HFC-134a and HF + HCFC-124 systems exhibit minimum boiling azeotropes at both temperatures.

• OSTI ID: 201445
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 1 Vol. 41; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFLUOROCARBONS
EQUILIBRIUM
FLUORINATED ALIPHATIC HYDROCARBONS
HYDROFLUORIC ACID
MATERIAL SUBSTITUTION
OZONE LAYER
PHASE STUDIES
PRODUCTION
REFRIGERANTS
THERMODYNAMIC PROPERTIES