US2789083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deashing of hydrocarbon oils
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-04-09
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Granted: 1957-04-16
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Expires: 1972-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert L Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:55
CPC Classifications
C; C10; C10G; C10G31/00; C10G31/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A METHOD FOR TREATING HYDROCARBON OIL CONTAINING UNFILTERABLE METALLIC CONTAMINANTS, WHICH COMPRISES INTIMATELY MIXING THE HYDROCARBON OIL WITH A MINOR AMOUNT OF WATER IN LIQUID PHASE, SETTLING THE RESULTING MIXTURE TO FORM A CLEAR OIL LAYER, A WATER PHASE AND AN AQUEOUS EMULSION LAYER, SEPARATING THE OIL LAYER, THE WATER PHASE AND THE EMULSION LAYER, THEN HEATING THE SEPARATED EMULSION LAYER AT A TEMPERATURE ABOVE ABOUT 500*F. TO MAKE THE METALLIC CONTAMINANTS FILTRABLE, BREAKING THE EMULSION SEPARATING WATER FROM THE RESULTING LIQUID OIL PHASE, AND FILTERING THE OIL PHASE TO REMOVE THE METALLIC CONTAMINANTS.
Claim 2
Independent Claim
94 words
A METHOD FOR TREATING HYDROCARBON OIL CONTAINING UNFILTERABLE METALLIC CONTAMINANTS, WHICH COMPRISES INTIMATELY MIXING THE HYDROCARBON OIL WITH A MINOR AMOUNT OF WATER IN LIQUID PHASE, SETTLING THE RESULTING MIXTURE TO FORM A CLEAR OIL LAYER, A WATER PHASE AND AN AQUEOUS EMULSION LAYER, SEPARATING THE OIL LAYER, THE WATER PHASE AND THE EMULSION LAYER, THEN HEATING THE SEPARATED EMULSION LAYER AT A TEMPERATURE ABOVE ABOUT 500*F. TO MAKE THE METALLIC CONTAMINANTS FILTRABLE, BREAKING THE EMULSION SEPARATING WATER FROM THE RESULTING LIQUID OIL PHASE, AND FILTERING THE OIL PHASE TO REMOVE THE METALLIC CONTAMINANTS.
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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |