Patent US2717869A successfully refreshed from Google Patents.
US2717869A
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Distillation of oil bearing minerals
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1949-12-09
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Granted: 1955-09-13
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Expires: 1969-12-09
Abstract
No abstract record available.
Inventors
- 👤 Earl E Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:24
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A PROCESS WHEREIN FINELY DIVIDED RELATIVELY RICH OIL SHALE HAVING AN OIL CONTENT OF 40 TO 80 GALS. OF OIL PER TON IS DISTILLED IN THE FORM OF A DENSE TURBULENT MASS FLUIDIZED IN A DISTILLATION ZONE BY AN UPWARDLY FLOWING GASIFORM MEDIUM AND WHEREIN THE SHALE DISINTEGRATES SO THAT THE CONCENTRATION OF THE FINES OF A PARTICLE SIZE OF LESS THAN 20 MICRONS INCREASES IN SAID FLUIDIZED MASS TO ABOUT 25%, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID DISTILLATION ZONE CONTAINING ABOUT 25% FINES A RELATIVELY LEAN SHALE FRACTION CONTAINING ABOUT 10 TO 20 GALS, OF OIL PER TON AT A RATE SUFFICIENT WITH RESPECT TO THE RICH SHALE FEED TO PREVENT INCREASE OF SAID FINES IN SAID FLUIDIZED MASS TO A CONCENTRATION SUBSTANTIALLY ABOVE ABOUT 25%.
Claim 2
Dependent Claim
129 words
IN A PROCESS WHEREIN FINELY DIVIDED RELATIVELY RICH OIL SHALE HAVING AN OIL CONTENT OF 40 TO 80 GALS. OF OIL PER TON IS DISTILLED IN THE FORM OF A DENSE TURBULENT MASS FLUIDIZED IN A DISTILLATION ZONE BY AN UPWARDLY FLOWING GASIFORM MEDIUM AND WHEREIN THE SHALE DISINTEGRATES SO THAT THE CONCENTRATION OF THE FINES OF A PARTICLE SIZE OF LESS THAN 20 MICRONS INCREASES IN SAID FLUIDIZED MASS TO ABOUT 25%, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID DISTILLATION ZONE CONTAINING ABOUT 25% FINES A RELATIVELY LEAN SHALE FRACTION CONTAINING ABOUT 10 TO 20 GALS, OF OIL PER TON AT A RATE SUFFICIENT WITH RESPECT TO THE RICH SHALE FEED TO PREVENT INCREASE OF SAID FINES IN SAID FLUIDIZED MASS TO A CONCENTRATION SUBSTANTIALLY ABOVE ABOUT 25%.
References Cited (Backward Citations)
US2480670A
Cited
US2471119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |