US3784483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobalt,iron,phosphorus and oxygen containing oxidatice dehydrogenation catalyst
Assignee: Phillips Petroleum Co
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Filing: 1971-05-06
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Granted: 1974-01-08
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Expires: 1991-05-06
Abstract
Abstract ORGANIC COMPOUNDS ARE DEHYDROGENATED TO COMPOUNDS HAVING A HIGHER DEGREE OF UNSATURATION BY CONTACTING THE FEEDSTOCK IN THE VAPOR PHASSE IN THE PRESENCE OF AN OXYGENCONTAINING GAS WITH A CATALYST CCOMPRISING COBALT IN ASSOCIATION WITH IRON, PHOSPHORUS AND OXYGEN. REPRESENTATIVE OF SUCH CONVERSIONS IS THE OXIDATIVE DEHYDROGENATION OF ISOPENTANCE TO ISOPRENE AND ISOAMYLENES. THE CONVERSION PRODUCTS ARE VALUABLE COMPOUNDS PARTICULARLY USEFUL AS INTERMEDIATES FOR THE PREPARATION OF POLYMERIC MATERIALS SUCH AS SYNTHETIC RUBBERS AND THE LIKE.
Inventors
- 👤 R Cichowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:37
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/75; B01J27/00; B01J27/14; B01J27/185; B01J27/1853; C; C07; C07C; C07C5/00; C07C5/42; C07C5/48; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |