US4039476A
Expired / Lapsed
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Oxidative dehydrogenation catalysts
Assignee: Phillips Petroleum Co
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Filing: 1975-05-30
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Granted: 1977-08-02
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Expires: 1995-05-30
Abstract
Abstract Alkenes and/or alkadienes are contacted with molecular oxygen and an oxidative dehydrogenation catalyst consisting essentially of phosphorus, molybdenum, cobalt and oxygen, wherein the atom ratio of phosphorus to molybdenum is in the range of about 0.5:1 to about 5:1 and the atom ratio of cobalt to molybdenum is in the range of about 0.1:1 to about 3:1, to produce furan compounds.
Inventors
- 👤 Brent J. Bertus
- 👤 Donald C. Tabler
- 👤 Marvin M. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:08
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/882; C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/36
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
44 words
A composition consisting essentially of molybdenum, cobalt, phosphorus, and oxygen, with an atom ratio of phosphorus to molybdenum in the range of about 1.4:1 to about 4:1 and an atom ratio of cobalt to molybdenum in the range of about 1.5:1 to about 3:1.
Claim 2
Dependent Claim
44 words
A composition consisting essentially of molybdenum, cobalt, phosphorus, and oxygen, with an atom ratio of phosphorus to molybdenum in the range of about 1.4:1 to about 4:1 and an atom ratio of cobalt to molybdenum in the range of about 1.5:1 to about 3:1.
Claim 3
Dependent Claim
31 words
An oxidative dehydrogenation catalyst consisting essentially of a composition in accordance with claim 1 wherein about 10 to about 98 weight percent of said catalyst is a solid catalyst support material.
Claim 4
Dependent Claim
31 words
An oxidative dehydrogenation catalyst in accordance with claim 2 wherein said solid catalyst support material has a surface area in the range of about 2 to about 50 m 2 /g.
Claim 5
Dependent Claim
27 words
An oxidative dehydrogenation catalyst in accordance with claim 3 wherein said solid catalyst support material constitutes from about 75 to about 95 weight percent of said catalyst.
Claim 6
Dependent Claim
28 words
An oxidative dehydrogenation catalyst in accordance with claim 4 wherein said catalyst has a surface area in the range of about 0.05 to about 20 m 2 /g.
Claim 7
Dependent Claim
24 words
An oxidative dehydrogenation catalyst in accordance with claim 5 wherein the Mo/Co/P atom ratio is in the range of about 1/1.5/1.4 to about 1/1.9/3.1.
Claim 8
Dependent Claim
25 words
A composition in accordance with claim 1 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 2:1.
Claim 9
Dependent Claim
25 words
A composition in accordance with claim 7 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4:1 to about 3.2:1.
Claim 10
Dependent Claim
25 words
A composition in accordance with claim 7 wherein said atom ratio of phosphorus to molybdenum is in the range of abbout 1.4:1 to about 3.1:1.
Claim 11
Dependent Claim
25 words
A composition in accordance with claim 9 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 1.9:1.
Claim 12
Dependent Claim
25 words
A composition in accordance with claim 7 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 1.9:1.
Claim 13
Dependent Claim
25 words
A composition in accordance with claim 1 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4:1 to about 3.2:1.
Claim 14
Dependent Claim
25 words
A composition in accordance with claim 1 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4:1 to about 3.1:1.
Claim 15
Dependent Claim
45 words
An unsupported calcined composition consisting of molybdenum, cobalt, phosphorus, and oxygen, with an atom ratio of phosphorus to molybdenum in the range of about 1.4:1 to about 4:1 and an atom ratio of cobalt to molybdenum in the range of about 1.5:1 to about 3:1.
Claim 16
Dependent Claim
45 words
An unsupported calcined composition consisting of molybdenum, cobalt, phosphorus, and oxygen, with an atom ratio of phosphorus to molybdenum in the range of about 1.4:1 to about 4:1 and an atom ratio of cobalt to molybdenum in the range of about 1.5:1 to about 3:1.
Claim 17
Dependent Claim
25 words
A composition in accordance with claim 14 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 2:1.
Claim 18
Dependent Claim
25 words
A composition in accordance with claim 15 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4:1 to about 3.2:1.
Claim 19
Dependent Claim
25 words
A composition in accordance with claim 15 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4:1 to about 3.1:1.
Claim 20
Dependent Claim
25 words
A composition in accordance with claim 17 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 1.9:1.
Claim 21
Dependent Claim
25 words
A composition in accordance with claim 15 wherein said atom ratio of cobalt to molybdenum is in the range of about 1.5:1 to about 1.9:1.
Claim 22
Dependent Claim
25 words
A composition in accordance with claim 14 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4 to about 3.2:1.
Claim 23
Dependent Claim
25 words
A composition in accordance with claim 14 wherein said atom ratio of phosphorus to molybdenum is in the range of about 1.4 to about 3.1:1.
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |