US2697124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehalogenation of fluorohalocarbons
Assignee: MW Kellogg Co
•
Filing: 1952-02-25
•
Granted: 1954-12-14
•
Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 Russell M Mantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:41
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR SELECTIVELY DEHALOGENATING A FLUROHALOCARBON WHICH COMPRISES CONTACTING SAID FLUOROHALOCARBON WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF SILVER, COBALT ON A CARRIER, A MIXTURE OF COBALT AND COPPER ON A CARRIER, PLATINUM ON A CARRIER, AND MAGNESIUM FLUORIDE, ABOUT ONE POUND OF SAID CATALYST BEING PRESENT FOR BETWEEN ABOUT 0.01 AND ABOUT 0.5 MOL OF SAID FLUOROHALOCARBON FEED PER MINUTE IN THE PRESENCE OF BETWEEN ABOUT 0.1 AND ABOUT 15 MOLS OF HYDROGEN, AND MAINTAINING SAID FLUOROHALOCARBON AND HYDROGEN IN CONTACT WITH SAID METAL CATALYST FOR A PERIOD OF TIME BETWEEN ABOUT 0.1 AND ABOUT 50 SECONDS AT A TEMPERATURE BETWEEN ABOUT 200* C. AND ABOUT 600* C. AND A PRESSURE BETWEEN ABOUT 0.1 AND ABOUT 15 ATMOSPHERES.
Claim 2
Dependent Claim
122 words
A PROCESS FOR SELECTIVELY DEHALOGENATING A FLUROHALOCARBON WHICH COMPRISES CONTACTING SAID FLUOROHALOCARBON WITH A CATALYST SELECTED FROM THE GROUP CONSISTING OF SILVER, COBALT ON A CARRIER, A MIXTURE OF COBALT AND COPPER ON A CARRIER, PLATINUM ON A CARRIER, AND MAGNESIUM FLUORIDE, ABOUT ONE POUND OF SAID CATALYST BEING PRESENT FOR BETWEEN ABOUT 0.01 AND ABOUT 0.5 MOL OF SAID FLUOROHALOCARBON FEED PER MINUTE IN THE PRESENCE OF BETWEEN ABOUT 0.1 AND ABOUT 15 MOLS OF HYDROGEN, AND MAINTAINING SAID FLUOROHALOCARBON AND HYDROGEN IN CONTACT WITH SAID METAL CATALYST FOR A PERIOD OF TIME BETWEEN ABOUT 0.1 AND ABOUT 50 SECONDS AT A TEMPERATURE BETWEEN ABOUT 200* C. AND ABOUT 600* C. AND A PRESSURE BETWEEN ABOUT 0.1 AND ABOUT 15 ATMOSPHERES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |