US2739102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon desulfurization process by reacting the sulfur in the hydrocarbon with an olefin and a catalyst, then extracting the hydrocarbon with so2 and bf3
Assignee: Standard Oil Co
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Filing: 1953-07-17
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Granted: 1956-03-20
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Expires: 1973-07-17
Abstract
No abstract record available.
Inventors
- 👤 Paul N Rylander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:49
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06; C10G21/08; C10G21/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR REFINING A MERCAPTAN-CONTAINING HYDROCARBON OIL, WHICH PROCESS COMPRISES (1) CONTACTING SAID OIL WITH AT LEAST AN EFFECTIVE AMOUNT OF AN OLEFINIC HYDROCARBON, IN THE PRESENCE OF AT LEAST A CATALYTIC AMOUNT OF A FRIEDEL-CRAFTS-TYPE HALIDE, FOR A TIME AT LEAST SUFFICIENT TO RENDER SAID OIL SUBSTANTIALLY MERCAPTAN-FREE, (2) CONTACTING SAID SUBSTANTIALLY MERCAPTAN-FREE OIL WITH AN AGENT CONSISTING ESSENTIALLY OF LIQUID SO2 AND A PROMOTER, WHEREIN THE LIQUID SO2 IS PRESENT IN AN AMOUNT AT LEAST
Claim 2
Dependent Claim
78 words
A PROCESS FOR REFINING A MERCAPTAN-CONTAINING HYDROCARBON OIL, WHICH PROCESS COMPRISES (1) CONTACTING SAID OIL WITH AT LEAST AN EFFECTIVE AMOUNT OF AN OLEFINIC HYDROCARBON, IN THE PRESENCE OF AT LEAST A CATALYTIC AMOUNT OF A FRIEDEL-CRAFTS-TYPE HALIDE, FOR A TIME AT LEAST SUFFICIENT TO RENDER SAID OIL SUBSTANTIALLY MERCAPTAN-FREE, (2) CONTACTING SAID SUBSTANTIALLY MERCAPTAN-FREE OIL WITH AN AGENT CONSISTING ESSENTIALLY OF LIQUID SO2 AND A PROMOTER, WHEREIN THE LIQUID SO2 IS PRESENT IN AN AMOUNT AT LEAST
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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |