Patent US2552399A successfully refreshed from Google Patents.
US2552399A
Expired / Lapsed
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Treating petroleum distillates
Assignee: Standard Oil Development Co
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Filing: 1949-02-19
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Granted: 1951-05-08
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Expires: 1969-02-19
Abstract
No abstract record available.
Inventors
- 👤 John G Browder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:32
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A METHOD FOR SWEETENING A SOUR PETROLEUM DISTILLATE CONTAINING MERCAPTANS AND HAVING A FINAL BOILING POINT NO GREATER THAN 750* F. WHICH COMPRISES ADDING TO SAID DISTILLATE A SMALL BUT EFFECTIVE CATALYTIC AMOUNT OF A BENZENOID COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE AMINES AND PHENOLS AND THEN CONTACTING THE SOUR DISTILLATE CONTAINING THE BENZENOID COMPOUND WITH A CATALYTIC AMOUNT NO MORE THAN 5% BY VOLUME OF A SOLUTION OF AN ALKALI METAL HYDROXIDE WHILE ADDING A SUFFICIENT AMOUNT OF A MILD OXIDIZ ING AGENT TO CONVERT THE MERCAPTANS TO DISULFIDES AND TO OBTAIN A SWEETENED DISTILLATE.
Claim 2
Independent Claim
98 words
A METHOD FOR SWEETENING A SOUR PETROLEUM DISTILLATE CONTAINING MERCAPTANS AND HAVING A FINAL BOILING POINT NO GREATER THAN 750* F. WHICH COMPRISES ADDING TO SAID DISTILLATE A SMALL BUT EFFECTIVE CATALYTIC AMOUNT OF A BENZENOID COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE AMINES AND PHENOLS AND THEN CONTACTING THE SOUR DISTILLATE CONTAINING THE BENZENOID COMPOUND WITH A CATALYTIC AMOUNT NO MORE THAN 5% BY VOLUME OF A SOLUTION OF AN ALKALI METAL HYDROXIDE WHILE ADDING A SUFFICIENT AMOUNT OF A MILD OXIDIZ ING AGENT TO CONVERT THE MERCAPTANS TO DISULFIDES AND TO OBTAIN A SWEETENED DISTILLATE.
References Cited (Backward Citations)
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US2425414A
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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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |