Process for purifying a fluorine compound
AssigneeStella Chemifa Corporation
InventorsMasahide Waki, Daisuke Sakai, Toshihisa Sakurai
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Abstract
Provided is a process for purifying a fluorine compound capable of yielding a highly pure fluorine compound by removing at least oxygen from a fluorine compound containing an oxygen compound as an impurity. In a process according to the present invention for purifying a fluorine compound, the following is brought into contact with the fluorine compound, which contains an oxygen compound as an impurity, thereby removing at least oxygen: carbonyl fluoride in an amount of a 0.1-fold equivalent or more and a 100-fold equivalent or less of oxygen atoms in the fluorine compound.
Claims10
A process for purifying a fluorine compound from a composition comprising said fluorine compound and an oxygen compound comprising bringing carbonyl fluoride into contact with the composition, thereby removing at least oxygen from the composition,
- wherein the carbonyl fluoride is present in a molar amount from 0.1 to 100 times the molar amount of oxygen atoms in the oxygen compound, and
- the fluorine compound is a fluoride salt.
Dependencies are inferred from the claim text.