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Title: METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS

Abstract

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)

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4782189
Patent Number(s):
3033771
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-16-016402
NSA Number:
NSA-16-016402
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CHEMICAL REACTIONS; 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

Citation Formats

Frazer, J.W. METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS. United States: N. p., 1962. Web.
Frazer, J.W. METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS. United States.
Frazer, J.W. Tue . "METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS". United States.
@article{osti_4782189,
title = {METHOD FOR THE PREPARATION OF BINARY NITROGEN-FLUORINE COMPOUNDS},
author = {Frazer, J.W.},
abstractNote = {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)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {5}
}