US2759875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining mineral oil to remove copper therefrom by treating with a metal acetate
Assignee: Sunoco Inc
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Filing: 1951-11-28
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Granted: 1956-08-21
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Expires: 1971-11-28
Abstract
No abstract record available.
Inventors
- 👤 Rolland G Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:25
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN THE METHOD OF REFINING HYDROCARBON MATERIAL WHICH COMPRISES CONTACTING HYDROCARBON MATERIAL WITH A COPPER SALT SELECTED FROM THE GROUP CONSISTING OF CUPRIC CHLORIDE AND CUPRIC SULFATE, THEREBY TO OXIDIZE SULFURCONTAINING CONSTITUTENTS OF THE HYDROCARBON MATERIAL AND REDUCE THE COPPER SALT, AND OXIDIZING THE REDUCED COPPER SALT BY MEANS OF FREE OXYGEN-CONTAINING GAS, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE RESULTING HYDROCARBON MATERIAL CONTAINING ORGANIC COPPER COMPOUNDS, IN LIQUID PHASE WITH AN AQUEOUS SOLUTION OF AN ACETATE SALT HAVING THE CATION ABOVE HYDROGEN IN THE ELECTROMOTIVE SERIES OF THE ELEMENTS, THEREBY TO REMOVE COPPER COMPOUNDS FROM THE HYDROCARBON MATERIAL.
Claim 2
Dependent Claim
98 words
IN THE METHOD OF REFINING HYDROCARBON MATERIAL WHICH COMPRISES CONTACTING HYDROCARBON MATERIAL WITH A COPPER SALT SELECTED FROM THE GROUP CONSISTING OF CUPRIC CHLORIDE AND CUPRIC SULFATE, THEREBY TO OXIDIZE SULFURCONTAINING CONSTITUTENTS OF THE HYDROCARBON MATERIAL AND REDUCE THE COPPER SALT, AND OXIDIZING THE REDUCED COPPER SALT BY MEANS OF FREE OXYGEN-CONTAINING GAS, THE IMPROVEMENT WHICH COMPRISES CONTACTING THE RESULTING HYDROCARBON MATERIAL CONTAINING ORGANIC COPPER COMPOUNDS, IN LIQUID PHASE WITH AN AQUEOUS SOLUTION OF AN ACETATE SALT HAVING THE CATION ABOVE HYDROGEN IN THE ELECTROMOTIVE SERIES OF THE ELEMENTS, THEREBY TO REMOVE COPPER COMPOUNDS FROM THE HYDROCARBON MATERIAL.
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) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |