US2943048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of metallic contaminants from petroleum fractions
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-12-02
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Granted: 1960-06-28
•
Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 James H Rust
- 👤 Bieber Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:18
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/06; C10G21/00; C10G21/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE BETWEEN ABOUT 650 TO 950*F. FOR A PERIOD OF 1/2 MINUTE TO 50 HOURS, THEREAFTER CONTACTING SAID FRACTION IN A SOLVENT PRECIPITATION ZONE WITH A SOLVENT COMPOSED OF FROM ABOUT 1 TO ABOUT 25% NON-OXYGENATED ASPHALT SOLUTIZER HAVING A SURFACE TENSION BETWEEN ABOUT 24 AND 45 DYNES/CM. AT 25*C. AND FROM ABOUT 99 TO ABOUT 75% LIGHT HYDROCARBON IN A RATIO OF 0.1 TO 10 VOLUMES OF SAID SOLVENT PER VOLUME OF SAID FRACTION AND WITH HYDROGEN HALIDE AND PRECIPITATING AND COAGULATING METALLIC CONTAMINANTS AND RECOVERING A HEAVY OIL OF REDUCED METALLIC CONTAMINATION.
Claim 2
Dependent Claim
121 words
AN IMPROVED PROCESS FOR UPGRADING A METALLIC CONTAMINATED PETROLEUM FRACTION INCLUDING CONSTITUENTS BOILING ABOVE 950*F. WHICH COMPRISES SUBJECTING SAID FRACTION TO AN INITIAL THERMAL TREATMENT AT A TEMPERATURE BETWEEN ABOUT 650 TO 950*F. FOR A PERIOD OF 1/2 MINUTE TO 50 HOURS, THEREAFTER CONTACTING SAID FRACTION IN A SOLVENT PRECIPITATION ZONE WITH A SOLVENT COMPOSED OF FROM ABOUT 1 TO ABOUT 25% NON-OXYGENATED ASPHALT SOLUTIZER HAVING A SURFACE TENSION BETWEEN ABOUT 24 AND 45 DYNES/CM. AT 25*C. AND FROM ABOUT 99 TO ABOUT 75% LIGHT HYDROCARBON IN A RATIO OF 0.1 TO 10 VOLUMES OF SAID SOLVENT PER VOLUME OF SAID FRACTION AND WITH HYDROGEN HALIDE AND PRECIPITATING AND COAGULATING METALLIC CONTAMINANTS AND RECOVERING A HEAVY OIL OF REDUCED METALLIC CONTAMINATION.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |