Method for reducing oxygen component and carbon component in...

Details Method for reducing oxygen component and carbon component in... Method for reducing oxygen component and carbon component in...

2006-04-25

2006-04-25

Wu, David W. (Department: 1713)

Chemistry of inorganic compounds

Halogen or compound thereof

Binary fluorine containing compound

C423S262000, C423S263000, C423S490000

Reexamination Certificate

active

07033563

ABSTRACT:
A method for reducing oxygen and carbon components in high-purity fluoride such as calcium fluoride and barium fluoride (a high-purity fluoride that is not limited to calcium fluoride and barium fluoride), or in rare-earth fluorides such as ytterbium fluoride and cerium fluoride used for an optical fiber, a coating material, and so on. The oxygen and carbon components contained in the high-purity fluoride are reduced by a fluorine gas treatment.

REFERENCES:
patent: 6146456 (2000-11-01), Mizugaki et al.
patent: 2000-226297 (2000-08-01), None
patent: 2000-281492 (2000-10-01), None
patent: 2000-281492 (2000-10-01), None
patent: PCT/JP02/01033 (2002-02-01), None
The American Heritage College Dictionary, 4thedition, p. 57.

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