US2848498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating saturated oxo compounds
Assignee: Usines de Melle SA
•
Filing: 1954-09-16
•
Granted: 1958-08-19
•
Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Mention Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:22
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/46; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS WHICH COMPRISES REACTING FOR A SHORT PERIOD A MIXTURE OF A SATURATED OXO COMPOUND HAVING AT LEAST 3 CARBON ATOMS WITH AN AQUEOUS ALKALINE CONDENSATION AGENT, FLOWING TURBULENTLY AT HIGH SPEED, TO PRODUCE A CONDENSATION PRODUCT, SUBSTANTIALLY IMMEDIATELY SEPARATING THE ENTIRE MIXTURE OF SAID AGENT AND REACTION PRODUCT AS THE TURBULENCE CEASES, AND RECYCLING ONLY THE ALKALINE CONDENSATION AGENT SO SEPARATED FOR REUSE IN THE PROCESS, THE RATE OF FLOW OF THE MIXTURE BEING 10 TO 100 TIMES AS GREAT AS THE FEED OF THE OXO COMPOUND, AND THE ALKALINE CONDENSATION AGENT IN THE MIXTURE BEING EQUIVALENT TO 1 TO 300 GRAMS PER LITRE OF SODIUM HYDROXIDE.
Claim 2
Dependent Claim
109 words
A PROCESS WHICH COMPRISES REACTING FOR A SHORT PERIOD A MIXTURE OF A SATURATED OXO COMPOUND HAVING AT LEAST 3 CARBON ATOMS WITH AN AQUEOUS ALKALINE CONDENSATION AGENT, FLOWING TURBULENTLY AT HIGH SPEED, TO PRODUCE A CONDENSATION PRODUCT, SUBSTANTIALLY IMMEDIATELY SEPARATING THE ENTIRE MIXTURE OF SAID AGENT AND REACTION PRODUCT AS THE TURBULENCE CEASES, AND RECYCLING ONLY THE ALKALINE CONDENSATION AGENT SO SEPARATED FOR REUSE IN THE PROCESS, THE RATE OF FLOW OF THE MIXTURE BEING 10 TO 100 TIMES AS GREAT AS THE FEED OF THE OXO COMPOUND, AND THE ALKALINE CONDENSATION AGENT IN THE MIXTURE BEING EQUIVALENT TO 1 TO 300 GRAMS PER LITRE OF SODIUM HYDROXIDE.
References Cited (Backward Citations)
US2517690A
Cited
US2468710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |