Extraction of hydrogen fluoride from a halocarbon/hydrogen fluor

Details Extraction of hydrogen fluoride from a halocarbon/hydrogen fluor Extraction of hydrogen fluoride from a halocarbon/hydrogen fluor

1998-03-03

2000-12-05

Siegel, Alan

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

Organic compounds

Halogen containing

570180, C07C 1738

Patent

active

061569445

ABSTRACT:
A process for the separation of mixtures containing halocarbons and hydrogen fluoride. Either water alone or a blend comprising water and hydrogen fluoride is added to a mixture comprising a halocarbon and hydrogen fluoride to thereby form a first phase rich in the halocarbon and a second phase rich in hydrogen fluoride and water. The most preferred halocarbon is 1,1,1,3,3-pentafluoropropane. Preferably, the first and second phases are then separated. Optionally, the second phase rich in hydroger fluoride and water is also separated.

REFERENCES:
patent: 3873629 (1975-03-01), Jones
patent: 3947558 (1976-03-01), Van Eijl
patent: 5414165 (1995-05-01), Nappa et al.
patent: 5461177 (1995-10-01), Manzer et al.
patent: 5523015 (1996-06-01), Tsuda et al.

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