Method for purification of tungsten hexafluoride

Details Method for purification of tungsten hexafluoride Method for purification of tungsten hexafluoride

2005-05-24

2005-05-24

Nguyen, Ngoc-Yen (Department: 1754)

Chemistry of inorganic compounds

Halogen or compound thereof

Binary fluorine containing compound

C423S492000, C423S24000R

Reexamination Certificate

active

06896866

ABSTRACT:
A method for purifying tungsten hexafluoride of high purity, capable of producing tungsten hexafluoride of higher purity than that of the related art, readily and at a low cost. A method for purifying tungsten hexafluoride of high purity, characterized in that tungsten hexafluoride containing molybdenum hexafluoride as an impurity, makes contact with a layer, in which a metal or an alloy is packed, containing at least one of molybdenum, tungsten, copper, nickel, iron, cobalt, zinc, titanium, aluminum, calcium, and magnesium at a temperature ranging from 0° C. to 100° C.

REFERENCES:
patent: 5234679 (1993-08-01), Suenaga et al.
patent: 5324498 (1994-06-01), Streusand et al.
patent: 6103212 (2000-08-01), Salim et al.
patent: 02124723 (1990-05-01), None
patent: 04342423 (1992-11-01), None
patent: 11180716 (1999-07-01), None

Affiliated with

Also associated with

Rating

Method for purification of tungsten hexafluoride does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for purification of tungsten hexafluoride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for purification of tungsten hexafluoride will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3380751