| 摘要 |
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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