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Method and apparatus for synthesizing anhydrous HNO/sub 3/. [Patent application]

Patent ·
OSTI ID:6264359
; ; ;

A method and apparatus for electrochemically synthesizing anhydrous HNO/sub 3/ from an aqueous solution of HNO/sub 3/- includes oxidizing a solution of N/sub 2/O/sub 4//aqueous HNO/sub 3/ at an anode, while maintaining a controlled potential between the N/sub 2/O/sub 4//aqueous HNO/sub 3/ solution and the anode. A potential of about 1.80V vs. SCE is preferred. Anhydrous or aqueous HNO/sub 3/ may be disposed at the cathode within the electrochemical cell. Aqueous HNO/sub 3/ having a water content of up to about 12% by weight is utilized to synthesize anhydrous HNO/sub 3/.

DOE Contract Number:
W-7405-ENG-48
Assignee:
Dept. of Energy
Patent Number(s):
None
Application Number:
ON: DE83013189
OSTI ID:
6264359
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
DISPERSIONS
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MIXTURES
NITRIC ACID
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
SOLUTIONS
SYNTHESIS