US3066087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of reducing sulfate content in stock feed
Assignee: Howe Baker Engineers LLC
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Filing: 1959-10-12
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Granted: 1962-11-27
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Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Robert J Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:31
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A PROCESS OF TREATING A HYDROCARBON STREAM CONTAINING SULFUR COMPONENTS WHICH COMPRISES INTIMATELY AND VIGOROUSLY ADMIXING WITH SUCH HYDROCARBON STREAM SULFURIC ACID HAVING A STRENGTH OF BETWEEN 85 AND 98% TITRATABLE ACIDITY IN PROPORTIONS OF 2 TO 25 POUNDS OF SAID ACID PER BARREL OF HYDROCARBON OF A PERIOD OF 3 TO 6 MINUTES, CONDUCTING THE ACID-HYDROCARBON MIXTURE INTO A SETTLING ZONE, ALLOWING SAID MIXTURES TO REMAIN IN SAID SETTLING ZONE FOR A PERIOD OF TIME SUFFICIENT TO BRING ABOUT THE FORMATION OF SULFUR-CONTAINING REACTION PRODUCTS WHICH DISSOLVE IN THE ACID, PASSING THE MIXTURE THROUGH AN ELECTRICAL FIELD ZONE WHEREIN THE ELECTRICAL FIELD IS GENERATED BY A DIRECT CURRENT OF APPROXIMATELY 1900 TO 2500 VOLTS PER INCH OF ELECTRODE SPACING WITH THE ELECTRODE SPACING BEING BETWEEN 6 AND 12 INCHES, WHILE MAINTAINING A TEMPERATURE IN THE SETTLING AN ELECTRICAL FIELD ZONES WITHIN THE RANGE OF 40 AND 150*F. AND A COMBINED RESIDENCE TIME OF THE ACID-HYDROCARBON MIXTURE WITHIN THE SETTLING AND ELECTRICAL FIELD ZONES BETWEEN 20 AND 40 MINUTES, REMOVING ACID FROM THE SETTLING ZONE, AND REMOVING A DESULFURIZED HYDROCARBON STREAM FROM THE ELECTRICAL FIELD ZONE.
Claim 2
Dependent Claim
186 words
A PROCESS OF TREATING A HYDROCARBON STREAM CONTAINING SULFUR COMPONENTS WHICH COMPRISES INTIMATELY AND VIGOROUSLY ADMIXING WITH SUCH HYDROCARBON STREAM SULFURIC ACID HAVING A STRENGTH OF BETWEEN 85 AND 98% TITRATABLE ACIDITY IN PROPORTIONS OF 2 TO 25 POUNDS OF SAID ACID PER BARREL OF HYDROCARBON OF A PERIOD OF 3 TO 6 MINUTES, CONDUCTING THE ACID-HYDROCARBON MIXTURE INTO A SETTLING ZONE, ALLOWING SAID MIXTURES TO REMAIN IN SAID SETTLING ZONE FOR A PERIOD OF TIME SUFFICIENT TO BRING ABOUT THE FORMATION OF SULFUR-CONTAINING REACTION PRODUCTS WHICH DISSOLVE IN THE ACID, PASSING THE MIXTURE THROUGH AN ELECTRICAL FIELD ZONE WHEREIN THE ELECTRICAL FIELD IS GENERATED BY A DIRECT CURRENT OF APPROXIMATELY 1900 TO 2500 VOLTS PER INCH OF ELECTRODE SPACING WITH THE ELECTRODE SPACING BEING BETWEEN 6 AND 12 INCHES, WHILE MAINTAINING A TEMPERATURE IN THE SETTLING AN ELECTRICAL FIELD ZONES WITHIN THE RANGE OF 40 AND 150*F. AND A COMBINED RESIDENCE TIME OF THE ACID-HYDROCARBON MIXTURE WITHIN THE SETTLING AND ELECTRICAL FIELD ZONES BETWEEN 20 AND 40 MINUTES, REMOVING ACID FROM THE SETTLING ZONE, AND REMOVING A DESULFURIZED HYDROCARBON STREAM FROM THE ELECTRICAL FIELD ZONE.
References Cited (Backward Citations)
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US2382697A
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US2412791A
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US2855357A
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US2721833A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |