COMPOSITE PROPELLENT CATALYSTS: COPPER CHROMATE AND COPPER CHROMITE
Abstract
The thermal decompositions of copper chromate and copper chromite have been examined by simultaneous thermogravimetric analysis and differential thermal analysis. Decomposition proceeds in successive stages ultimately yielding cuprous chromite and cuprous oxide from both copper chromate and copper chromite. Alternate successive exposure of the catalyst at 400-420C to fuel (ammonia, isobutene or ethylene) and oxygen showed that after the initial reduction, a redox cycle occurred between cupric oxide and copper. Both stages of the redox cycle were associated with exothermic reactions. No redox cycle was observed when methane was used as a fuel. When perchloric acid was used as oxidizer, an irreversible weight change occurred, along with the oxidation part of the redox cycle. The relevance of these results to the mechanism of composite propellent catalysis is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1969
- Accession Number
- AD0697878
Entities
People
- G. S. Pearson