US2763593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweetening of hydrocarbons by reacting olefins with mercaptans in the presence of actinic light and then treating with a hypochlorite
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-08-19
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Granted: 1956-09-18
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Expires: 1974-08-19
Abstract
No abstract record available.
Inventors
- 👤 Charles J G Leesemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:20
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A METHOD FOR TREATING HYDROCARBONS WHICH COMPRISES EXPOSING A HYDROCARBON FRACTION CONTAINING SUBSTANTIALLY ONLY ONE OF THE HYDROCARBON TYPES SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, NAPHTHENES, AND AROMATICS, TOGETHER WITH AN OLEFIN CONCENTRATION NOT IN EXCESS OF 1%, TO WHICH HAS BEEN ADDED A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF THE NORMAL, PRIMARY, SECONDARY, AND TERTIARY MERCAPTANS HAVING FROM 1 TO ABOUT 12 CARBON ATOMS IN THE MOLECULE IN AN AMOUNT IN EXCESS OF THE STOICHIOMETRIC EQUIVALENT FOR REACTION WITH SAID OLEFINS, TO LIGHT RADIATION HAVING A WAVE LENGTH IN THE RANGE OF 1850 TO 3600 A* AT A REACTION TEMPERATURE OF ABOUT 100* TO ABOUT 150* F. FOR ABOUT 1 TO 120
Claim 2
Independent Claim
115 words
A METHOD FOR TREATING HYDROCARBONS WHICH COMPRISES EXPOSING A HYDROCARBON FRACTION CONTAINING SUBSTANTIALLY ONLY ONE OF THE HYDROCARBON TYPES SELECTED FROM THE GROUP CONSISTING OF PARAFFINS, NAPHTHENES, AND AROMATICS, TOGETHER WITH AN OLEFIN CONCENTRATION NOT IN EXCESS OF 1%, TO WHICH HAS BEEN ADDED A MERCAPTAN SELECTED FROM THE GROUP CONSISTING OF THE NORMAL, PRIMARY, SECONDARY, AND TERTIARY MERCAPTANS HAVING FROM 1 TO ABOUT 12 CARBON ATOMS IN THE MOLECULE IN AN AMOUNT IN EXCESS OF THE STOICHIOMETRIC EQUIVALENT FOR REACTION WITH SAID OLEFINS, TO LIGHT RADIATION HAVING A WAVE LENGTH IN THE RANGE OF 1850 TO 3600 A* AT A REACTION TEMPERATURE OF ABOUT 100* TO ABOUT 150* F. FOR ABOUT 1 TO 120
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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |