Removal of dinitrogen difluoride from nitrogen trifluoride

Details Removal of dinitrogen difluoride from nitrogen trifluoride Removal of dinitrogen difluoride from nitrogen trifluoride

1978-04-06

1980-03-18

Hearn, Brian

Chemistry of inorganic compounds

Nitrogen or compound thereof

Binary compound

423240, 423489, C01B 2152

Patent

active

041939760

ABSTRACT:
This invention relates to a process for purifying a nitrogen trifluoride containing atmosphere contaminated with dinitrogen difluoride. The atmosphere is purified by heating the nitrogen trifluoride atmosphere in the presence of a particulate metal capable of defluorinating dinitrogen difluoride, but inert to nitrogen trifluoride, preferably the metal being selected from the group consisting of iron, cobalt, and nickel, to a temperature of from about 300.degree.-1000.degree. F. for a time sufficient to effect defluorination of the dinitrogen difluoride.

REFERENCES:
patent: 3109711 (1963-11-01), Lawton et al.
patent: 3181305 (1965-05-01), Schoenfelder
patent: 3214237 (1965-10-01), Morrow
patent: 3304248 (1967-02-01), Fullam et al.
patent: 3356454 (1967-12-01), Tompkins et al.
Colburn, C. et al., "Difluorodiazine" in J. Am. Chem. Soc. vol. 81 (1959), pp. 6397, 6398.

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