Separation of R-12 and R-134a by a liquid-liquid extraction tech

Details Separation of R-12 and R-134a by a liquid-liquid extraction tech Separation of R-12 and R-134a by a liquid-liquid extraction tech

1996-04-17

1998-04-28

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 1738

Patent

active

057446628

ABSTRACT:
A process for separating and purifying dichlorodifluoromethane and 1,1,1,2 tetrafluoroethane from a feed of their mixtures by liquid-liquid extraction with extracting solvent containing paraffinic or naphthalenic mineral oils or a mixture thereof, with or without a stripping agent such as ethylene glycol or triethylene glycol or a mixture thereof.

REFERENCES:
patent: 5087329 (1992-02-01), Felix
patent: 5099082 (1992-03-01), Bolmer

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