Deuterium exchange between hydrofluorocarbons and amines

Details Deuterium exchange between hydrofluorocarbons and amines Deuterium exchange between hydrofluorocarbons and amines

C - Chemistry, Metallurgy

07

C

260/658.1, 204/9

C07C 19/08 (2006.01) B01D 59/34 (2006.01) C01B 4/00 (2006.01)

Patent

CA 1143752

ABSTRACT The concentration of deuterium relative to hydrogen in a hydrofluorocarbon is increased by con- tacting the hydrofluorocarbon, in the presence of an alkali metal amide, with an amine having a concentration of deuterium that is greater than that which provides equilibrium with the hydrofluorocarbon. In a preferred embodiment, a compound enriched in deuterium is pro- duced by first exposing trifluoromethane to infrared laser radiation to selectively cause a chemical reac- tion involving deuterium-containing molecules. The deuterium-depleted trifluoromethane is deuterium re- plenished by exchange with an amine, and the compound enriched in deuterium is converted to heavy water. Heavy water is useful in certain types of nuclear reactors.

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