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US3098102A
Expired / Lapsed
US
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Production of unsaturated aliphatic aldehydes
Assignee: Distillers Co Yeast Ltd
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Filing: 1960-01-25
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Granted: 1963-07-16
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Bethell James Robert
- 👤 Hadley David James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; B01J37/00; B01J37/0009; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE PROCESS FOR THE PRODUCTION OF AN UNSATURATED ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WHICH COMPRISES REACTING AT ABOUT 300-500* C. IN THE VAPOUR PHASE AND IN THE PRESENCE OF AN INERT GASEOUS DILUENT A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTENE WITH OXYGEN, THE PROPORTION OF OLEFINE IN THE FEED BEING BETWEEN ABOUT 2 AND 20% BY VOLUME, THE PROPORTION OF OXYGEN IN THE FEED BETWEEN 2 AND 15% BY VOLUME, OVER COBALT MOLYBDATE AS AN OXIDATION CATALYST, AND RECOVERING THE UNSATURATED ALDEHYDE FROM THE REACTION PRODUCTS.
Claim 2
Dependent Claim
95 words
THE PROCESS FOR THE PRODUCTION OF AN UNSATURATED ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF ACROLEIN AND METHACROLEIN WHICH COMPRISES REACTING AT ABOUT 300-500* C. IN THE VAPOUR PHASE AND IN THE PRESENCE OF AN INERT GASEOUS DILUENT A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PROPYLENE AND ISOBUTENE WITH OXYGEN, THE PROPORTION OF OLEFINE IN THE FEED BEING BETWEEN ABOUT 2 AND 20% BY VOLUME, THE PROPORTION OF OXYGEN IN THE FEED BETWEEN 2 AND 15% BY VOLUME, OVER COBALT MOLYBDATE AS AN OXIDATION CATALYST, AND RECOVERING THE UNSATURATED ALDEHYDE FROM THE REACTION PRODUCTS.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |