METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS

Patent · Tue May 01 04:00:00 EDT 1962

OSTI ID:4782189

Frazer, J W

A process is given for preparing binary nitrogenfluorine compounds, in particular, tetrafluorohydrazine (N/sub 2/F/sub 4/) and difluorodiazine (N/sub 2/ F/sub 2/), The process comprises subjecting gaseous nitrogen trifluoride to the action of an alternating current electrical glow discharge in the presence of mercury vapors. By the action of the electrical discharge, the nitrogen trifluoride is converted into a gaseous product comprising a mixture of tetrafluorohydrazine, the isomers of difluorodiazine, and other impurities including nitrogen, nitrogen oxides, silicon tetrafiuoride, and unreacted nitrogen trifluoride. The gaseous products and impurities are passed into a trap maintained at about - 196 deg C to freeze out the desired products and impurities with the exception of nitregen gas which passes off from the trap and is discarded. Subsequently, the desired products and remaining impurities are warmed to the gaseous state and passed through a silica gel trap maintained at about - 55DEC, wherein the desired tetrafluorohydrazine and difluorodiazine products are retained while the remaining gaseous impurities pass therethrough. The desired products are volatilized from the silica gel trap by heating and then separated by gas chrounatography means into the respective tetrafluorohydrazine and difluorodiazine products. (A.e.C)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-016402
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 3033771
• OSTI ID: 4782189
• Country of Publication: United States
• Language: English

Related Subjects

CHEMICAL REACTIONS
CHEMISTRY
CHROMATOGRAPHY
COLLOIDS
CRYOGENICS
CURRENTS
ELECTRIC DISCHARGES
GASES
HEATING
HYDRAZINE
IMPURITIES
ISOMERS
MERCURY
MIXING
NITROGEN
NITROGEN FLUORIDES
NITROGEN OXIDES
ORGANIC FLUORINE COMPOUNDS
PREPARATION
SEPARATION PROCESSES
SILICON FLUORIDES
SILICON OXIDES
TRAPS
VAPORS
VOLATILITY