US2578602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dethiolizing hydrocarbons and other organic liquids
Assignee: Texaco Development Corp
•
Filing: 1948-05-22
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Granted: 1951-12-11
•
Expires: 1968-05-22
Abstract
No abstract record available.
Inventors
- 👤 Rosenstein Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
C; C10; C10G; C10G19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE PROCESS OF DETHIOLIZING HYDROCARBONS THAT COMPRISES COUNTERCURRENTLY CONTACTING THE HYDROCARBONS WITH A SUBSTANTIALLY ANHYDROUS ALKANOLAMINE SOLUTION OF ALKALI METAL HYDROXIDE LIMITED IN QUANTITY TO SUPPLY APPROXIMATELY THE STOICHIOMETRIC AMOUNT OF THE HYDROXIDE BASED ON THE MERCAPTAN CONTENT OF THE HYDROCARBONS TO THEREBY EFFECT COMPLETE REMOVAL OF THE MERCAPTANS.
Claim 2
Dependent Claim
49 words
THE PROCESS OF DETHIOLIZING HYDROCARBONS THAT COMPRISES COUNTERCURRENTLY CONTACTING THE HYDROCARBONS WITH A SUBSTANTIALLY ANHYDROUS ALKANOLAMINE SOLUTION OF ALKALI METAL HYDROXIDE LIMITED IN QUANTITY TO SUPPLY APPROXIMATELY THE STOICHIOMETRIC AMOUNT OF THE HYDROXIDE BASED ON THE MERCAPTAN CONTENT OF THE HYDROCARBONS TO THEREBY EFFECT COMPLETE REMOVAL OF THE MERCAPTANS.
References Cited (Backward Citations)
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Cited
US2238201A
Cited
US2152723A
Cited
US2317053A
Cited
GB557315A
Cited
US2446507A
Cited
US2455656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |