Method for reducing oxygen component and carbon component in fluoride
AssigneeStella Chemifa Corporation
InventorsHirohisa Kikuyama, Hirofumi Yazaki, Tomohiko Satonaga
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Abstract
To provide a method for reducing oxygen and carbon components in high-purity fluoride such as calcium fluoride and barium fluoride (high-purity fluoride is not limited to calcium fluoride and barium fluoride), or in rare-earth fluoride such as ytterbium fluoride and cerium fluoride used for an optical fiber, a coating material, and so on. It is characterized in that the oxygen and carbon components contained in the high-purity fluoride are reduced by a fluorine gas treatment.
Claims13
A method for reducing an oxygen component and a carbon component in fluoride, characterized by performing a fluorine gas treatment in which fluoride is brought into contact with gas that contains fluorine gas.
Dependencies are inferred from the claim text.