US2933446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluidized platinum reforming process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-02-11
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Granted: 1960-04-19
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Expires: 1978-02-11
Abstract
No abstract record available.
Inventors
- 👤 Donald D Maclaren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32; C; C10; C10G; C10G35/00; C10G35/04; C10G35/10; C10G35/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF CONTINOUSLY HYDROFORMING A NAPHTHA IN THE PRESENCE OF A PLATINUM-ALUMINA CATALYST OF TWO DISTINCT PARTICLE SIZES WHICH COMPRISES CHARGING THE NAPHTHA TOGETHER WITH A HYDROGEN-CONTAINING GAS TO REACTION ZONE MAINTAINED AT 900-975*F. AND 50-500 P.S.I.G. WHERE IT FIRST CONTACTS A LARGE SIZE CATALYST IN THE FORM OF "SHOT" AND ALSO HAVING A PLATINUM CONTENT OF 0.3 TO 0.6 WT. PERCENT AND A CHLORINE CONTENT OF 0 TO 0.4 WT. PERCENT WHEREBY THE NAPHTHENE CONSTITUENTS OF
Claim 2
Independent Claim
78 words
THE METHOD OF CONTINOUSLY HYDROFORMING A NAPHTHA IN THE PRESENCE OF A PLATINUM-ALUMINA CATALYST OF TWO DISTINCT PARTICLE SIZES WHICH COMPRISES CHARGING THE NAPHTHA TOGETHER WITH A HYDROGEN-CONTAINING GAS TO REACTION ZONE MAINTAINED AT 900-975*F. AND 50-500 P.S.I.G. WHERE IT FIRST CONTACTS A LARGE SIZE CATALYST IN THE FORM OF "SHOT" AND ALSO HAVING A PLATINUM CONTENT OF 0.3 TO 0.6 WT. PERCENT AND A CHLORINE CONTENT OF 0 TO 0.4 WT. PERCENT WHEREBY THE NAPHTHENE CONSTITUENTS OF
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |