Freon Recovery from Nitrogen Tetroxide and Freon Solutions
Abstract
A reactor was designed, built, and tested to extract N2O4 from a N2O4 in Freon solution. A two step chemistry process was developed, the N2O4 is extracted from the Freon as KNO2 and KNO3 with aqueous KOH. The KNO2 is converted to N2 and K2SO4 by sulfamic acid. The excess KOH is neutralized with nitric acid to produce an innocuous KNO3 solution. The concentration of N2O4 left in the treated Freon is below the detection limit of the analytical method used. It was discovered that N2O4 reacts with Freon over time to produce halogenated nitroethanes. The reactor has been delivered to the Western Space and Missile Center (WSMC).
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1993
- Accession Number
- ADA268972
Entities
People
- Robert O. Bucsh