US3830757A
Expired / Lapsed
US
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Catalyst for the preparation of carbonyl containing compositions
Assignee: Union Carbide Corp
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Filing: 1971-02-24
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Granted: 1974-08-20
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Expires: 1991-02-24
Abstract
Abstract CARBONYL-CONTAINING COMPOSITIONS, SUCH AS ALDEHYDES AND KETONES, ARE SELECTIVELY AND CONVENIENTLY PREPARED IN HIGH YIELDS AND AT HIGH EFFICIENCES BY A CATALYTIC VAPOR PHASE PROCESS WHICH COMPRISES CONTACTING UNSATURATED COMPOUNDS WITH OXYGEN IN THE PRESENCE OF A NOVEL CATALYST CONTAINING A VANADIUM OXIDE DOPED WITH AT LEAST ONE, AND PREFERENTIALLY TWO OR MORE, TRANSITION METALS OR TRANSITION METAL-CONTAINING COMPOUNDS, ONE OF WHICH IS, OR CONTAINS, PALLADIUM. THE CATALYSTS EMPLOYED ARE HIGHLY ACTIVE AND SELECTIVE AT MODERATE TEMPERATURES AND PRESSURES AND HAVE INDUSTRIALLY USEFUL LIFETIME.
Inventors
- 👤 A Evnin
- 👤 A Risch
- 👤 S Kavarnos
- 👤 J Rabo
- 👤 L Elek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:09
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/648; B01J23/6482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |