US2927076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing sulfonated petroleum with organic sulfoxides
Assignee: Sunoco Inc
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Filing: 1957-09-16
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Granted: 1960-03-01
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Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Samuel E Jolly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:25
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PROCESS WHICH COMPRISES CONTACTING PETROLEUM WITH A SULFONATING AGENT, THEREBY TO FORM OIL-SOLUBLE SULFONIC ACIDS, NEUTRALIZING THE SULFONIC ACIDS AND EXTRACTING THE NEUTRALIZED SULFONIC ACIDS FROM THE SULFONATED PETROLEUM BY MEANS OF A LOWER ALIPHATIC ALCOHOL AND SUBSEQUENTLY HEATING THE PETROLEUM FROM WHICH THE NEUTRALIZED ACIDS HAVE BEEN EXTRACTED TO A TEMPERATURE OF AT LEAST 650*F., THE IMPROVEMENT WHICH COMPRISES REDUCING THE ENOLUTION OF ACIDIC GASES DURING THE HEATING BY CONTACTING THE PETROLEUM FROM WHICH THE NEUTRALIZED ACIDS WERE EXTRACTED WITH AN ORGANIC SULFOXIDE AND SEPARATING FROM THE PETROLEUM THE ORGANIC SULFOXIDE CON TAINING CONSTITUENTS WHICH WOULD OTHERWISE CAUSE EVOLUTION OF ACIDIC GASES DURING THE SUBSEQUENT HEATING OF THE PETROLEUM.
Claim 2
Dependent Claim
112 words
IN A PROCESS WHICH COMPRISES CONTACTING PETROLEUM WITH A SULFONATING AGENT, THEREBY TO FORM OIL-SOLUBLE SULFONIC ACIDS, NEUTRALIZING THE SULFONIC ACIDS AND EXTRACTING THE NEUTRALIZED SULFONIC ACIDS FROM THE SULFONATED PETROLEUM BY MEANS OF A LOWER ALIPHATIC ALCOHOL AND SUBSEQUENTLY HEATING THE PETROLEUM FROM WHICH THE NEUTRALIZED ACIDS HAVE BEEN EXTRACTED TO A TEMPERATURE OF AT LEAST 650*F., THE IMPROVEMENT WHICH COMPRISES REDUCING THE ENOLUTION OF ACIDIC GASES DURING THE HEATING BY CONTACTING THE PETROLEUM FROM WHICH THE NEUTRALIZED ACIDS WERE EXTRACTED WITH AN ORGANIC SULFOXIDE AND SEPARATING FROM THE PETROLEUM THE ORGANIC SULFOXIDE CON TAINING CONSTITUENTS WHICH WOULD OTHERWISE CAUSE EVOLUTION OF ACIDIC GASES DURING THE SUBSEQUENT HEATING OF THE PETROLEUM.
References Cited (Backward Citations)
US2365898A
Cited
US2788310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |