Extractive distillation

Details Extractive distillation Extractive distillation

C - Chemistry, Metallurgy

07

C

C07C 21/185 (2006.01) C01B 7/07 (2006.01) C07C 17/38 (2006.01)

Patent

CA 2078438

2078438 9114667 PCTABS00007 Process of separating hydrogen chloride and tetrafluoroethylene by extractively distilling a mixture thereof in the presence of an extractant that substantially alters the relative volatilities of the hydrogen chloride and the tetrafluoroethylene, for example, a perhalogenated organic extractant, such as perfluorocyclobutane, hexafluoropropylene or 1,1,2-trifluoro-1,2,2-trichloroethane.

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