Patent US2744853A successfully refreshed from Google Patents.
US2744853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of metal contaminants from petroleum
Assignee: Texaco Inc
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Filing: 1953-06-15
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Granted: 1956-05-08
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Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Kevin E Kavanagh
- 👤 Ralph P Chesluk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:10
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/02; C10G29/00; C10G29/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A PROCESS FOR TREATING A HEAVY PETROLEUM OIL SELECTED FROM THE GROUP CONSISTING OF CRUDE PETROLEUM, RESIDUAL FRACTIONS THEREOF, HEAVY FUEL OIL FRACTIONS, LUBRICATING OIL FRACTIONS AND GAS OIL FRACTIONS, SAID HEAVY PETROLEUM OIL CONTAINING A CONTAMINATING AMOUNT OF OILSOLUBLE METAL COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF VANADIUM, NICKEL, IRON AND MIXTURES THEREOF, WHICH COMPRISES CONTACTING SAID HEAVY PETROLEUM OIL WITH A TREATING AGENT CONSISTING ESSENTIALLY OF ELEMENTAL IODINE IN NON-AQUEOUS FORM UNDER CONDITIONS TO CONVERT SAID OIL-SOLUBLE METAL COMPOUNDS TO OILINSOLUBLE SOLID METAL- AND IODINE-CONTAINING COMPOUNDS, AND SEPARATING SAID OIL-INSOLUBLE SOLID COMPOUNDS FROM THE HEAVY OIL TO THEREBY OBTAIN A TREATED HEAVY PETROLEUM OIL FROM WHICH AT LEAST THE MAJOR PROPORTION OF SAID CONTAMINATING METAL CONTENT HAS BEEN REMOVED.
Claim 2
Dependent Claim
123 words
A PROCESS FOR TREATING A HEAVY PETROLEUM OIL SELECTED FROM THE GROUP CONSISTING OF CRUDE PETROLEUM, RESIDUAL FRACTIONS THEREOF, HEAVY FUEL OIL FRACTIONS, LUBRICATING OIL FRACTIONS AND GAS OIL FRACTIONS, SAID HEAVY PETROLEUM OIL CONTAINING A CONTAMINATING AMOUNT OF OILSOLUBLE METAL COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF VANADIUM, NICKEL, IRON AND MIXTURES THEREOF, WHICH COMPRISES CONTACTING SAID HEAVY PETROLEUM OIL WITH A TREATING AGENT CONSISTING ESSENTIALLY OF ELEMENTAL IODINE IN NON-AQUEOUS FORM UNDER CONDITIONS TO CONVERT SAID OIL-SOLUBLE METAL COMPOUNDS TO OILINSOLUBLE SOLID METAL- AND IODINE-CONTAINING COMPOUNDS, AND SEPARATING SAID OIL-INSOLUBLE SOLID COMPOUNDS FROM THE HEAVY OIL TO THEREBY OBTAIN A TREATED HEAVY PETROLEUM OIL FROM WHICH AT LEAST THE MAJOR PROPORTION OF SAID CONTAMINATING METAL CONTENT HAS BEEN REMOVED.
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) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |