US2897131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of arsenic with deactivated platinum catalyst and subsequent reforming
Assignee: Universal Oil Products Co
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Filing: 1953-11-25
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Granted: 1959-07-28
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Expires: 1973-11-25
Abstract
No abstract record available.
Inventors
- 👤 Charles V Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:54
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/10; B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; C10G35/00; C10G35/04; C10G35/06; C10G35/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A PROCESS FOR THE REFORMING OF A GASOLINE FRACTION CONTAINING ARESENIC INPURITIES IN THE PRESENCE OF A CATALYST COMPRISING ALUMINA AND PLATINUM IN A CONCENTRATION OF FROM ABOUT 0.1% TO ABOUT 1% BY WEIGHT, WHEREIN SAID GASOLINE FRACTION IS PASSED IN SERIES THROUGH A PLURALITY OF ZONES EACH CONTAINING A PORTION OF SAID CATALYST, THE METHOD OF OBTAINING A SUBSTANTIALLY UNIFORM PRODUCT FOR A LONG PERIOD OF TIME, WHICH COMPRISES CONTACTING SAID GASOLINE FRACTION AT A TEMPERATURE OF FROM ABOUT 500* TO 750*F. FIRST WITH THE CATALYST WHICH PREVIUOSLY HAD BEEN DEACTIVATED BY USE IN THE REFORMING REACTION, WHEREBY TO REMOVE THE ARSENIC INPURITIES, AND THEN AT A TEMPERATURE OF FROM ABOUT 850* TO ABOUT 1000*F. WITH THE CATALYST IN THE REMAINDER OF SAID ZONES TO EFFECT THE REFORMING.
Claim 2
Dependent Claim
130 words
IN A PROCESS FOR THE REFORMING OF A GASOLINE FRACTION CONTAINING ARESENIC INPURITIES IN THE PRESENCE OF A CATALYST COMPRISING ALUMINA AND PLATINUM IN A CONCENTRATION OF FROM ABOUT 0.1% TO ABOUT 1% BY WEIGHT, WHEREIN SAID GASOLINE FRACTION IS PASSED IN SERIES THROUGH A PLURALITY OF ZONES EACH CONTAINING A PORTION OF SAID CATALYST, THE METHOD OF OBTAINING A SUBSTANTIALLY UNIFORM PRODUCT FOR A LONG PERIOD OF TIME, WHICH COMPRISES CONTACTING SAID GASOLINE FRACTION AT A TEMPERATURE OF FROM ABOUT 500* TO 750*F. FIRST WITH THE CATALYST WHICH PREVIUOSLY HAD BEEN DEACTIVATED BY USE IN THE REFORMING REACTION, WHEREBY TO REMOVE THE ARSENIC INPURITIES, AND THEN AT A TEMPERATURE OF FROM ABOUT 850* TO ABOUT 1000*F. WITH THE CATALYST IN THE REMAINDER OF SAID ZONES TO EFFECT THE REFORMING.
References 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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |