Method of refining tungsten hexafluoride containing molybdenum h

Details Method of refining tungsten hexafluoride containing molybdenum h Method of refining tungsten hexafluoride containing molybdenum h

1992-04-10

1993-08-10

Morris, Theodore

Chemistry of inorganic compounds

Halogen or compound thereof

Binary fluorine containing compound

423240S, 423 53, 423 59, C01B 908

Patent

active

052346790

ABSTRACT:
A method of refining tungsten hexafluoride containing molybdenum hexafluoride as an impurity includes the step of contacting the tungsten hexafluoride with at least one metal selected from the group consisting of Mo, W, Cu, Ni, Fe, Co, Zn, Ti, Al, Ca and Mg at a temperature ranging from 100.degree. to 500.degree. C. Molybdenum hexafluoride is efficiently removed from the tungsten hexafluoride by the method.

REFERENCES:
patent: 3711592 (1973-01-01), Jonsson et al.
patent: 3806579 (1974-04-01), Carles et al.

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