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
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
- 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}
}