Chromium-dioxide-catalyst
Abstract
Abstract CHROMIUM-DIOXIDE OF RUTILE-TYPE CRYSTAL-STRUCTURE AND MODIFIED CHROMIUM-DIOXIDE CONTAINING OXIDES AND/OR FLUORIDES OF CATIONS WHICH HAVE RADII IN THE RANGE BETWEEN 0.46 AND 0.91 A. CAN BE USED AS CATALYSTS WITH HIGH AND PERMANENT ACTIVITY TO PROMOTE OXIDATION-PROCESSES SUCH AS OXIDATION OF HYDROGEN-CHLORIDE TO CHLORINE AND WATER, CONVERSION OF SULFUR-DIOXIDE TO SULFUR-TRIOXIDE OXIDATION OF CARBON-MONOXIDE TO CARON-DIOXIDE, OXIDATION OF AMMONIA TO NITRIC OXIDES OXIDATION AND OXYCLORINATION OF HYDROCARBONS, COMBUSTION OF HYDROGEN OR ALCOHOLS AND THE LIKE. THE CHROMIUM-DIOXIDE OR THE MODIFIED CHROMIUM-DIOXIDE CAN BE USED AS SUCH OR TOGETHER WITH CARRIERS. FURTHERMORE IT IS POSSIBLE TO COMBINE THE CHROMIUM-DIOXIDE CATALYSTS WITH OTHER CATALYTICALLY ACTIVE MATERIALS.
Inventors
- 👤 Franz Hund
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |