Method and apparatus for synthesizing anhydrous HNO.sub.3

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:864963

Coon, Clifford L ^[1]; Harrar, Jackson E ^[2]; Pearson, Richard K ^[3]; McGuire, Raymond R ^[4]

---

1. Fremont, CA
2. Castro Valley, CA
3. Pleasanton, CA
4. Brentwood, CA

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.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States Department (Washington, DC)
• Patent Number(s): US 4443308
• OSTI ID: 864963
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
synthesizing
anhydrous
hno
electrochemically
aqueous
solution
oxidizing
anode
maintaining
controlled
potential
80v
vs
sce
preferred
disposed
cathode
electrochemical
cell
water
content
12
weight
utilized
synthesize
aqueous hno
electrochemical cell
aqueous solution
water content
anhydrous hno
controlled potential
electrochemically synthesizing
synthesizing anhydrous
/205/204/