Catalytic process for the decomposition of perfluoroalkanes
US6069291A · kind A · utility
23Cited by
10References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 12, 1996 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jun 12, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D2101/22
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process and composition for transforming perfluoroalkanes in the presence of an oxidizing agent and water at temperatures between about 400 to 1,000.degree. C. Aluminum oxide is the primary agent for effecting this transformation. Additions of between 0.1 to 50% by weight of other components such as barium calcium, phosphorus, cerium, chromium, cobalt, iron, lanthanum, magnesium, nickel, silicon, titanium, yttrium or zirconium aid in extending the useful life of the catalyst. A preferred catalyst composition includes aluminum oxide with additions of cobalt and one or more of the elements of cerium, titanium or zirconium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.