Patent US2996442A successfully refreshed from Google Patents.
US2996442A
Expired / Lapsed
US
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Process for electrically treating a metallic contaminated residual petroleum fraction
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-06-25
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Granted: 1961-08-15
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Expires: 1978-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul Earl Eberly
- 👤 Adams Clark Edward
- 👤 Jr Charles Newton Kimberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/06; C10G32/00; C10G32/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED RESIDUAL PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE ABOUT 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION IN LIQUID PHASE TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE OF FROM ABOUT 600* TO ABOUT 900*F. FOR A PERIOD OF ABOUT 0.3 TO ABOUT 10 HOURS UNDER PRESSURES SUFFICIENT TO MAINTAIN THE MATERIAL IN A SUBSTANTIALLY LIQUID STATE, THEREAFTER SUBJECTING SAID FRACTION AT ELEVATED TEMPERATURES TO A D.C. ELECTRICAL FIELD IN THE RANGE OF ABOUT 680 TO 10,000 VOLTS PER CENTIMETER, AND RECOVERING AN OIL PRODUCT DEPLETED IN METALLIC CONSTITUENTS.
Claim 2
Dependent Claim
94 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED RESIDUAL PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE ABOUT 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION IN LIQUID PHASE TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE OF FROM ABOUT 600* TO ABOUT 900*F. FOR A PERIOD OF ABOUT 0.3 TO ABOUT 10 HOURS UNDER PRESSURES SUFFICIENT TO MAINTAIN THE MATERIAL IN A SUBSTANTIALLY LIQUID STATE, THEREAFTER SUBJECTING SAID FRACTION AT ELEVATED TEMPERATURES TO A D.C. ELECTRICAL FIELD IN THE RANGE OF ABOUT 680 TO 10,000 VOLTS PER CENTIMETER, AND RECOVERING AN OIL PRODUCT DEPLETED IN METALLIC CONSTITUENTS.
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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |