US2955123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective ozone oxidation of hydrocarbons
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-07-13
•
Granted: 1960-10-04
•
Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Dimitrios V Favis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:21
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR SEPARATING SATURATED HYDROCARBONS FROM A PETROLEUM LUBRICATING OIL DISTILLATE FRACTION COMPRISING SAID SATURATED HYDROCARBONS AND UNSATURATED HYDROCARBONS, WHICH COMPRISES SUSPENDING DROPLETS OF SAID FRACTION, IN AMOUNTS PROPORTIONED TO ASSURE A TWO-LIQUID PHASE SYSTEM, IN A CARBOXYLIC ACID COMPRISING LIQUID MEDIUM WHICH SELECTIVELY DISSOLVES PARTIALLY OXIDIZED HYDROCARBONS, DISPERSING OZONE-CONTAINING GAS INTO THE RESULTING SUSPENSION, MAINTAINING SAID SUSPENSION AT A TEMPERATURE IN THE RANGE OF ABOUT 70* TO 150*F. TO EFFECT SELECTIVE PARTIAL OXIDATION OF SAID UNSATURATED HYDROCARBONS THEREBY FORMING OXIDATION PRODUCTS WHICH DISSOLVE IN SAID LIQUID MEDIUM AND SEPARATING THE UNREACTED SATURATED HYDROCARBONS FROM SAID LIQUID MEDIUM AND SAID OXIDATION PRODUCTS DISSOLVED THEREIN, SAID MEDIUM BEING MORE VOLATILE THAN SAID OXIDATION PRODUCTS AND SUBSTANTIALLY UNREACTIVE WITH SAID FRACTION AND SAID OXIDATION PRODUCTS THROUGHOUT SAID PROCESS.
Claim 2
Dependent Claim
127 words
A PROCESS FOR SEPARATING SATURATED HYDROCARBONS FROM A PETROLEUM LUBRICATING OIL DISTILLATE FRACTION COMPRISING SAID SATURATED HYDROCARBONS AND UNSATURATED HYDROCARBONS, WHICH COMPRISES SUSPENDING DROPLETS OF SAID FRACTION, IN AMOUNTS PROPORTIONED TO ASSURE A TWO-LIQUID PHASE SYSTEM, IN A CARBOXYLIC ACID COMPRISING LIQUID MEDIUM WHICH SELECTIVELY DISSOLVES PARTIALLY OXIDIZED HYDROCARBONS, DISPERSING OZONE-CONTAINING GAS INTO THE RESULTING SUSPENSION, MAINTAINING SAID SUSPENSION AT A TEMPERATURE IN THE RANGE OF ABOUT 70* TO 150*F. TO EFFECT SELECTIVE PARTIAL OXIDATION OF SAID UNSATURATED HYDROCARBONS THEREBY FORMING OXIDATION PRODUCTS WHICH DISSOLVE IN SAID LIQUID MEDIUM AND SEPARATING THE UNREACTED SATURATED HYDROCARBONS FROM SAID LIQUID MEDIUM AND SAID OXIDATION PRODUCTS DISSOLVED THEREIN, SAID MEDIUM BEING MORE VOLATILE THAN SAID OXIDATION PRODUCTS AND SUBSTANTIALLY UNREACTIVE WITH SAID FRACTION AND SAID OXIDATION PRODUCTS THROUGHOUT SAID PROCESS.
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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) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |