US4249020A
Expired / Lapsed
US
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Oxydehydrogenation of certain≧C4 saturated oxyhydrocarbon compounds
Assignee: Union Carbide Corp
•
Filing: 1977-08-19
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Granted: 1981-02-03
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Expires: 1997-08-19
Abstract
Abstract Certain C4 to C9 saturated acids, esters and aldehydes are oxidatively dehydrogenated catalytically and exothermically to the corresponding alpha , beta -unsaturated acids, esters and/or aldehydes with certain calcined catalysts containing the elements Mo and V.
Inventors
- 👤 Daniel W. McNeil
- 👤 Benjamin Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:12
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/002; B01J23/16; B01J23/24; B01J23/28; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/51; C07C45/54; C07C45/61; C07C45/65; C07C51/00; C07C51/347; C07C51/377; B01J2523/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
174 words
A process for converting at least one saturated organic compound having the structure ##STR2## wherein R 1 , R 2 and R 3 may each be H, CH 3 or C 2 H 5 , with the proviso that the sum of the carbon atoms in the R 1 , R 2 and R 3 radicals is 1 to 3, inclusive, R 4 is either H or CH 3 , n is 0 or 1, and m is 1-n, to the corresponding α,β-unsaturated acid, ester and/or aldehyde which comprises catalytically oxidatively dehydrogenating the saturated organic compound exothermically by contacting said saturated organic compound with a calcined catalyst composition having the formula Mo.sub.a V.sub.b Nb.sub.c O.sub.d P.sub.e a is 16, b is about 0.5 to 16, where c is up to 8 but greater than 0, d is >0.0, e is ≧0.0, with the proviso that d+e corresponds to the amounts of O and/or P needed to satisfy the valence requirements of the Mo, V, and Nb in the form of oxides and/or phosphates thereof.
Claim 2
Dependent Claim
174 words
A process for converting at least one saturated organic compound having the structure ##STR2## wherein R 1 , R 2 and R 3 may each be H, CH 3 or C 2 H 5 , with the proviso that the sum of the carbon atoms in the R 1 , R 2 and R 3 radicals is 1 to 3, inclusive, R 4 is either H or CH 3 , n is 0 or 1, and m is 1-n, to the corresponding α,β-unsaturated acid, ester and/or aldehyde which comprises catalytically oxidatively dehydrogenating the saturated organic compound exothermically by contacting said saturated organic compound with a calcined catalyst composition having the formula Mo.sub.a V.sub.b Nb.sub.c O.sub.d P.sub.e a is 16, b is about 0.5 to 16, where c is up to 8 but greater than 0, d is >0.0, e is ≧0.0, with the proviso that d+e corresponds to the amounts of O and/or P needed to satisfy the valence requirements of the Mo, V, and Nb in the form of oxides and/or phosphates thereof.
Claim 3
Dependent Claim
13 words
A process as in claim 1 in which b is 2.0 to 8.
Claim 4
Dependent Claim
17 words
A process as in claim 1 in which c is up to 2 but greater than 0.
Claim 5
Dependent Claim
11 words
A process as in claim 1 in which c is 2.0.
Claim 6
Dependent Claim
11 words
A process as in claim 1 in which e is 0.
Claim 7
Dependent Claim
11 words
A process as in claim 1 in which n is 0.
Claim 8
Dependent Claim
12 words
A process as in claim 6 in which R 4 is H.
Claim 9
Dependent Claim
14 words
A process as in claim 7 in which said saturated compound comprises isobutyric acid.
Claim 10
Dependent Claim
11 words
A process as in claim 1 in which m is 0.
Claim 11
Dependent Claim
13 words
A process as in claim 9 in which said saturated compound comprises isobutyraldehyde.
Claim 12
Dependent Claim
14 words
A process as in claim 1 in which R 4 is CH 3 .
Claim 13
Dependent Claim
14 words
A process as in claim 11 in which said saturated compound comprises methyl isobutyrate.
Claim 14
Dependent Claim
18 words
A process as in claim 1 which is conducted at a temperature of about 200° to 550° C.
Claim 15
Dependent Claim
18 words
A process as in claim 13 which is conducted at a pressure of about 0.5 to 20 atmospheres.
Claim 16
Dependent Claim
16 words
A process as in claim 1 in which said catalyst is supported on an inert support.
Claim 17
Dependent Claim
13 words
A process as in claim 1 which is conducted in the gas phase.
References Cited (Backward Citations)
US3652654A
Cited
US3770812A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |