Patent US3317581A successfully refreshed from Google Patents.
US3317581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon oxidation process to produce borate ester
Assignee: Halcon Research and Development Corp
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Filing: 1964-01-17
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Granted: 1967-05-02
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Expires: 1984-01-17
Abstract
No abstract record available.
Inventors
- 👤 Becker Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:04
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/48; C07C29/50; C07C29/52; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE PROCESS WHICH COMPRISES SUBJECTING A SATURATED HYDROCARBON TO OXIDATION AT A TEMPERATURE OF 75* TO 300* C. WITH MOLECULAR-OXYGEN CONTAINING GAS IN THE PRESENCE OF META-BORIC ACID PRODUCE A BORATE ESTER CONTAINING REACTION MIXTURE, REMOVING VAPORS COMPRISING HYDROCARBON AND WATER FROM THE OXIDATION REACTION MIXTURE, DIRECTLY CONTACTING SAID VAPORS WITH A FIRST LIQUID FEED STREAM OF SAID HYDROCARBON THEREBY HEATING SAID LIQUID AND COOLING SAID VAPORS, SUBJECTING SAID FIRST HEATED HYDROCARBON FEED STREAM TO FURTHER HEATING UP TO 185*C. AND INTRODUCING SAID FIRST HYDROCARBON FEEF STREAM INTO SAID OXIDATION REACTION MIXTURE, CONTACTING SAID COOLED VAPORS FROM SAID DIRECT CONTACT WITH A SLURRY OF ORTHO-BORIC ACID IN SAID HYDROCARBON THERBY DEHYDRATING THE ORTHO-BORIC ACID TO META-BORIC ACID AT A TEMPERATURE OF 100* TO 160* C., FEEDING SAID META-BORIC ACID AND HYDROCARBON TO SAID OXIDATION REACTION MIXTURE, REMOVING VAPORS FROM THE DEHYDRATION AND CONTACTING SAID VAPORS WITH A SECOND LIQUID FEED STREAM OF SAID HYDROCARBON, AND PASSING SAID SECOND HYDROCARBON FEED STREAM DIRECTLY TO SAID OXIDATION REACTION MIXTURE.
Claim 2
Dependent Claim
167 words
THE PROCESS WHICH COMPRISES SUBJECTING A SATURATED HYDROCARBON TO OXIDATION AT A TEMPERATURE OF 75* TO 300* C. WITH MOLECULAR-OXYGEN CONTAINING GAS IN THE PRESENCE OF META-BORIC ACID PRODUCE A BORATE ESTER CONTAINING REACTION MIXTURE, REMOVING VAPORS COMPRISING HYDROCARBON AND WATER FROM THE OXIDATION REACTION MIXTURE, DIRECTLY CONTACTING SAID VAPORS WITH A FIRST LIQUID FEED STREAM OF SAID HYDROCARBON THEREBY HEATING SAID LIQUID AND COOLING SAID VAPORS, SUBJECTING SAID FIRST HEATED HYDROCARBON FEED STREAM TO FURTHER HEATING UP TO 185*C. AND INTRODUCING SAID FIRST HYDROCARBON FEEF STREAM INTO SAID OXIDATION REACTION MIXTURE, CONTACTING SAID COOLED VAPORS FROM SAID DIRECT CONTACT WITH A SLURRY OF ORTHO-BORIC ACID IN SAID HYDROCARBON THERBY DEHYDRATING THE ORTHO-BORIC ACID TO META-BORIC ACID AT A TEMPERATURE OF 100* TO 160* C., FEEDING SAID META-BORIC ACID AND HYDROCARBON TO SAID OXIDATION REACTION MIXTURE, REMOVING VAPORS FROM THE DEHYDRATION AND CONTACTING SAID VAPORS WITH A SECOND LIQUID FEED STREAM OF SAID HYDROCARBON, AND PASSING SAID SECOND HYDROCARBON FEED STREAM DIRECTLY TO SAID OXIDATION REACTION MIXTURE.
References Cited (Backward Citations)
US1947989A
Cited
US3109864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |