Patent US2915465A successfully refreshed from Google Patents.
US2915465A
Expired / Lapsed
US
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Process for solubilizing monovalent metal carbonates in oil
Assignee: Shell Development Co
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Filing: 1956-08-16
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Granted: 1959-12-01
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Expires: 1976-08-16
Abstract
No abstract record available.
Inventors
- 👤 Henry W Anderson
- 👤 Ratner Hyman
- 👤 Eleanore R Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:41
CPC Classifications
C; C01; C01D; C01D7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR SOLUBILIZING AN ALKYL METAL CARBONATE IN A LIQUID HYDROCARBON, SAID PROCESS COMPRISING BRINING TOGETHER AN ALKALI METAL HYDROXIDE AND CARBON DIOXIDE TO FORM AN ALKALI METAL CARBONATE ONLY IN SITU IN THE PRESENCE OF ONLY A LIQUID REACTION MEDIUM CONSISTING ESSENTIALLY OF A LIQUID HYDROCARBON BOILING BELOW ABOUT 300*C., WATER AND AN ORGANIC ACID COMPOUND DISSOLVED IN SAID LIQUID HYDROCARBON, CONTAINING AT LEAST 12 CARBON ATOMS, AND SELECTED FROM THE GROUP CONSISTING OF(1) PETROLEUM SULFONIC ACIDS, (2) ALKYL-SUBSTITUTED SALICYCLIC ACIDS, AND (3) ALKALI METAL SALTS OF SUCH ACIDS, THE AMOUNT OF WATER BEING AT LEAST 2% OF THE WEIGHT OF SAID REACTION MEDIUM, AND THEREAFTER REMOVING THE WATER.
Claim 2
Dependent Claim
111 words
A PROCESS FOR SOLUBILIZING AN ALKYL METAL CARBONATE IN A LIQUID HYDROCARBON, SAID PROCESS COMPRISING BRINING TOGETHER AN ALKALI METAL HYDROXIDE AND CARBON DIOXIDE TO FORM AN ALKALI METAL CARBONATE ONLY IN SITU IN THE PRESENCE OF ONLY A LIQUID REACTION MEDIUM CONSISTING ESSENTIALLY OF A LIQUID HYDROCARBON BOILING BELOW ABOUT 300*C., WATER AND AN ORGANIC ACID COMPOUND DISSOLVED IN SAID LIQUID HYDROCARBON, CONTAINING AT LEAST 12 CARBON ATOMS, AND SELECTED FROM THE GROUP CONSISTING OF(1) PETROLEUM SULFONIC ACIDS, (2) ALKYL-SUBSTITUTED SALICYCLIC ACIDS, AND (3) ALKALI METAL SALTS OF SUCH ACIDS, THE AMOUNT OF WATER BEING AT LEAST 2% OF THE WEIGHT OF SAID REACTION MEDIUM, AND THEREAFTER REMOVING THE WATER.
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |