US2598642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of aromatizing hydrocarbons with metal fluoride catalyst in presence of oxygen and hydrogen fluoride
Assignee: Monsanto Chemicals Ltd
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Filing: 1949-09-24
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Granted: 1952-05-27
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Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 Forrest R Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:43
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR THE PRODUCTION OF CYCLIC HYDROCARBONS FROM N-HEPTANE WHICH COMPRISES CONTACTING N-HEPTANE WITH A DEHYDROCYCLICIZATION CATALYST COMPRISING THE COMBINATION OF MANGANESE FLUORIDE AND IRON FLUORIDE IN WHICH THE PROPORTION OF IRON CALCULATED AS THE METAL IS FROM 10 PERCENT TO 90 PERCENT BY WEIGHT OF THE IRON AND MANGANESE PRESENT IN THE SAID CATALYST, AT A TEMPERATUE OF FROM 450* TO 600* C. IN THE PRESENCE OF MINOR PROPORTIONS OF OXYGEN AND OF HYDROGEN FLUORIDE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR THE PRODUCTION OF CYCLIC HYDROCARBONS FROM N-HEPTANE WHICH COMPRISES CONTACTING N-HEPTANE WITH A DEHYDROCYCLICIZATION CATALYST COMPRISING THE COMBINATION OF MANGANESE FLUORIDE AND IRON FLUORIDE IN WHICH THE PROPORTION OF IRON CALCULATED AS THE METAL IS FROM 10 PERCENT TO 90 PERCENT BY WEIGHT OF THE IRON AND MANGANESE PRESENT IN THE SAID CATALYST, AT A TEMPERATUE OF FROM 450* TO 600* C. IN THE PRESENCE OF MINOR PROPORTIONS OF OXYGEN AND OF HYDROGEN FLUORIDE.
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |