Patent US2909563A successfully refreshed from Google Patents.
US2909563A
Expired / Lapsed
US
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Production of petroleum sulfonates
Assignee: Phillips Petroleum Co
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Filing: 1955-09-06
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Granted: 1959-10-20
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Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 William B Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:03
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
IN A PROCESS FOR THE PREPARATION OF METAL PETROLEUM SULFONATES BY THE SULFONATION OF HIGH MOLECULAR WEIGHT, HIGHLY REFINED PETROLEUM FRACTIONS HAVING A VISCOSITY OF ABOUT 150 TO ABOUT 600 SUS AT 210*F. AND A VISCOSITY INDEX OF AT LEAST 85 WITH FUMING SULFURIC ACID, SEPARATION OF THE SULFONATED OIL FROM REMAINING SULFURIC ACID AND CONVERSION OF THE SULFONIC ACIDS TO METAL SULFONATES THE IMPROVEMENT COMPRISING CONTACTING THE SULFONATION REACTION PRODUCTS WITH AT LEAST 3 VOLUMES OF WATER PER VOLUME OF REACTION MIXTURE; AGITATING SAID REACTION MIXTURE AND WATER SO THAT AT LEAST 3 VOLUMES OF WATER ARE PRESENT WITH EACH VOLUME OF REACTION MIXTURE DURING SAID AGITATION SO AS TO DISSOLVE UNREACTED SULFURIC ACID; RECOVERING SULFONATED PRODUCT FROM SAID MIXTURE; CONTACTING SAID SULFONATED PRODUCT WITH AN EXCESS OF THE HYDROXIDE OF SAID METAL SO AS TO CONVERT SULFONATED OIL TO METAL SULFONATE; REMOVING WATER AND SOLID INORGANIC MATERIAL FROM SAID SULFONATE; AND RECOVERING METAL SULFONATE AS A PRODUCT OF THE PROCESS.
Claim 2
Dependent Claim
162 words
IN A PROCESS FOR THE PREPARATION OF METAL PETROLEUM SULFONATES BY THE SULFONATION OF HIGH MOLECULAR WEIGHT, HIGHLY REFINED PETROLEUM FRACTIONS HAVING A VISCOSITY OF ABOUT 150 TO ABOUT 600 SUS AT 210*F. AND A VISCOSITY INDEX OF AT LEAST 85 WITH FUMING SULFURIC ACID, SEPARATION OF THE SULFONATED OIL FROM REMAINING SULFURIC ACID AND CONVERSION OF THE SULFONIC ACIDS TO METAL SULFONATES THE IMPROVEMENT COMPRISING CONTACTING THE SULFONATION REACTION PRODUCTS WITH AT LEAST 3 VOLUMES OF WATER PER VOLUME OF REACTION MIXTURE; AGITATING SAID REACTION MIXTURE AND WATER SO THAT AT LEAST 3 VOLUMES OF WATER ARE PRESENT WITH EACH VOLUME OF REACTION MIXTURE DURING SAID AGITATION SO AS TO DISSOLVE UNREACTED SULFURIC ACID; RECOVERING SULFONATED PRODUCT FROM SAID MIXTURE; CONTACTING SAID SULFONATED PRODUCT WITH AN EXCESS OF THE HYDROXIDE OF SAID METAL SO AS TO CONVERT SULFONATED OIL TO METAL SULFONATE; REMOVING WATER AND SOLID INORGANIC MATERIAL FROM SAID SULFONATE; AND RECOVERING METAL SULFONATE AS A PRODUCT OF THE PROCESS.
Claim 3
Dependent Claim
103 words
IN A PROCESS FOR THE SULFONATION OF HIGH MOLECULAR WEIGHT, HIGHLY REFINED PETROLEUM FRACTIONS HAVING A VISCOSITY OF ABOUT 150 TO ABOUT 600 SUS AT 210*F. WITH FUMING SULFURIC ACID AND SEPARATION OF THE SULFONATED OIL FROM REMAINING SULFONATING AGENT THE IMPROVEMENT COMPRISING CONTACTING THE SULFONATION REACTION MIXTURE WITH AT LEAST THREE VOLUMES OF WATER PER VOLUME OF REACTION MIXTURE; MIXING THE REACTION MIXTURE AND WATER SO THAT AT LEAST 3 VOLUMES OF WATER ARE PRESENT PER VOLUME OF REACTION MIXTURE DURING SAID MIXING SO AS TO DISSOLVE UNREACTED SULFONATING AGENT; AND SEPARATELY RECOVERING A SULFONATED OIL PHASE AND AN ACIDULATED WATER PHASE.
Claim 4
Dependent Claim
103 words
IN A PROCESS FOR THE SULFONATION OF HIGH MOLECULAR WEIGHT, HIGHLY REFINED PETROLEUM FRACTIONS HAVING A VISCOSITY OF ABOUT 150 TO ABOUT 600 SUS AT 210*F. WITH FUMING SULFURIC ACID AND SEPARATION OF THE SULFONATED OIL FROM REMAINING SULFONATING AGENT THE IMPROVEMENT COMPRISING CONTACTING THE SULFONATION REACTION MIXTURE WITH AT LEAST THREE VOLUMES OF WATER PER VOLUME OF REACTION MIXTURE; MIXING THE REACTION MIXTURE AND WATER SO THAT AT LEAST 3 VOLUMES OF WATER ARE PRESENT PER VOLUME OF REACTION MIXTURE DURING SAID MIXING SO AS TO DISSOLVE UNREACTED SULFONATING AGENT; AND SEPARATELY RECOVERING A SULFONATED OIL PHASE AND AN ACIDULATED WATER PHASE.
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |