US3043769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Destructive hydrogenation of heavy hydrocarbons
Assignee: MW Kellogg Co
•
Filing: 1953-10-19
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Granted: 1962-07-10
•
Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Marvin F Nathan
- 👤 Everett W Howard
- 👤 Henry G Mcgrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:17
CPC Classifications
C; C10; C10G; C10G47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS FOR CONVERTING A RESIDUAL OIL OBTAINED FROM A VACUUM DISTILLATION HAVING A GRAVITY LESS THAN 20* A.P.I. AND A CARBON RESIDUE GREATER THAN ABOUT 0.6 PERCENT BY WEIGHT TO A GAS OIL PRODUCT AND A HEAVIER ASPHALT PRODUCT WHICH COMPRISES CONTACTING SAID RESIDUAL OIL WITH A CATALYST CONSISTING OF A NICKEL OXIDE AND TUNGSTEN OXIDE SUPPORTED ON ALUMINA AT A TEMPERATURE OF 750* TO ABOUT 850* F., A PRESSURE BETWEEN ABOUT 500 AND ABOUT 1500 P.S.I.G., IN THE PRESSURE OF ADDED HYDROGEN IN THE AMOUNT BETWEEN ABOUT 2500 AND ABOUT 30,000 S.C.F.B., CONTROLLING THE SEVERITY FACTOR OF THE REACTION BETWEEN ABOUT 0.09 AND ABOUT 0.50 AND RECYCLING THE ASPHALT PRODUCT TO THE REACTION ZONE.
Claim 2
Dependent Claim
116 words
A PROCESS FOR CONVERTING A RESIDUAL OIL OBTAINED FROM A VACUUM DISTILLATION HAVING A GRAVITY LESS THAN 20* A.P.I. AND A CARBON RESIDUE GREATER THAN ABOUT 0.6 PERCENT BY WEIGHT TO A GAS OIL PRODUCT AND A HEAVIER ASPHALT PRODUCT WHICH COMPRISES CONTACTING SAID RESIDUAL OIL WITH A CATALYST CONSISTING OF A NICKEL OXIDE AND TUNGSTEN OXIDE SUPPORTED ON ALUMINA AT A TEMPERATURE OF 750* TO ABOUT 850* F., A PRESSURE BETWEEN ABOUT 500 AND ABOUT 1500 P.S.I.G., IN THE PRESSURE OF ADDED HYDROGEN IN THE AMOUNT BETWEEN ABOUT 2500 AND ABOUT 30,000 S.C.F.B., CONTROLLING THE SEVERITY FACTOR OF THE REACTION BETWEEN ABOUT 0.09 AND ABOUT 0.50 AND RECYCLING THE ASPHALT PRODUCT TO THE REACTION ZONE.
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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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |