US2586777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating olefins from hydrocarbon mixtures
Assignee: Houdry Process Corp
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Filing: 1947-01-31
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Granted: 1952-02-26
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Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Bond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:28
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE METHOD OF REMOVING OLEFINS FROM LOW BOILING LIQUID HYDROCARBON FRACTIONS CONTAINING THE SAME, SAID FRACTIONS BOILING IN THE RANGE OF UP TO ABOUT 600* F., WHICH COMPRISES CONTACTING SUCH A FRACTION WITH VAPORS OF NITROGEN TETROXIDE IN QUANTITY APPROXIMATELY SUFFICIENT TO REACT WITH ALL OLEFINS PRESENT IN SUCH FRACTION AND AT A TEMPERATURE IN THE RANGE OF 70-100* F. UNTIL EXCESS NITROGENOUS VAPORS APPEAR, DESTROYING ANY EXCESS NITROGEN TETROXIDE IN THE REACTION MIXTURE, AND AFTER STEAM DISTILLING THE REACTION MIXTURE, AND WASING THE OIL IN THE DISTILLATE WITH CAUSTIC SOLUTION TO REMOVE THEREFORM ANY NITROGENOUS PRODUCTS PRESENT.
Claim 2
Independent Claim
98 words
THE METHOD OF REMOVING OLEFINS FROM LOW BOILING LIQUID HYDROCARBON FRACTIONS CONTAINING THE SAME, SAID FRACTIONS BOILING IN THE RANGE OF UP TO ABOUT 600* F., WHICH COMPRISES CONTACTING SUCH A FRACTION WITH VAPORS OF NITROGEN TETROXIDE IN QUANTITY APPROXIMATELY SUFFICIENT TO REACT WITH ALL OLEFINS PRESENT IN SUCH FRACTION AND AT A TEMPERATURE IN THE RANGE OF 70-100* F. UNTIL EXCESS NITROGENOUS VAPORS APPEAR, DESTROYING ANY EXCESS NITROGEN TETROXIDE IN THE REACTION MIXTURE, AND AFTER STEAM DISTILLING THE REACTION MIXTURE, AND WASING THE OIL IN THE DISTILLATE WITH CAUSTIC SOLUTION TO REMOVE THEREFORM ANY NITROGENOUS PRODUCTS PRESENT.
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) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |