Process for the removal of olefinic impurities from 1,1,1,2,3,3,

Details Process for the removal of olefinic impurities from 1,1,1,2,3,3, Process for the removal of olefinic impurities from 1,1,1,2,3,3,

1992-05-07

1995-12-12

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1738

Patent

active

054751691

ABSTRACT:
Process for the removal of olefinic impurities from 1,1,1,2,3,3,3-heptafluoropropane
The invention relates to a process for the removal of olefinic impurities from 1,1,1,2,3,3,3-heptafluoropropane (R 227) in which the contaminated R 227 is brought into contact with an alcohol and a base, and the R 227 is simultaneously or subsequently removed by distillation.

REFERENCES:
patent: 2409274 (1946-10-01), Hanford et al.
patent: 4973774 (1990-11-01), Rozen et al.
patent: 5118873 (1992-06-01), Smith
Chemical Abstract, vol. 71, 60600w, "Fluoroolefins IV., Base-catalyzed reactions of fluoropropylenes with alcohols. Stearochemical aspects of the reactions", 1969, pp. 366-367.
Lovelaee et al Aliphatic Fluorine Comp (1958) pp. 156, 157.
Chem Abst. (1971) vol. 13: 60600w.

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