US4307247A
Expired / Lapsed
US
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Process for the production of unsaturated acids and esters
Assignee: Standard Oil Co
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Filing: 1980-09-05
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Granted: 1981-12-22
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Expires: 2000-09-05
Abstract
Abstract Saturated, lower aliphatic acids and esters are oxydehydrogenated to the corresponding unsaturated acids and esters by use of a catalyst of the empirical formula: Mo.sub.12 P.sub.0.1-3 Bi.sub.0.01-2 M.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 X a M' b O c (I) where M is at least one of K, Rb and Cs; X is at least one of Ba, Zn, Ga, Cd, Ti, when a>0; M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0; a is a number of 0 to about 2; b is a number of 0 to about 2; and c is a number that satisfies the valence requirements of the other elements present.
Inventors
- 👤 Wilfrid G. Shaw
- 👤 James E. Rinz
- 👤 Christos Paparizos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:27
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/02; C07C57/03; C07C57/04; C07C51/00; C07C51/347; C07C51/377
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
139 words
A vapor-phase process for the production of a compound of the formula ##STR3## the process comprising contacting in the presence of molecular oxygen a compound of the formula ##STR4## where R-R"' are independently hydrogen or a C 1 -C 4 alkyl radical, with a catalytic amount of a catalyst of the formula Mo.sub.12 P.sub.0.1-3 Bi.sub.0.01-2 M.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 X.sub.a M'.sub.b O.sub.c (I) where M is at least one of K, Rb and Cs; X is at least one of Ba, Zn, Ga, Cd and Ti when a>0; M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0; a is a number of 0 to about 2; b is a number of 0 to about 2; and c is a number that satisfies the valence requirements of the other elements present.
Claim 2
Dependent Claim
139 words
A vapor-phase process for the production of a compound of the formula ##STR3## the process comprising contacting in the presence of molecular oxygen a compound of the formula ##STR4## where R-R"' are independently hydrogen or a C 1 -C 4 alkyl radical, with a catalytic amount of a catalyst of the formula Mo.sub.12 P.sub.0.1-3 Bi.sub.0.01-2 M.sub.0.1-3 Cu.sub.0.01-2 V.sub.0.01-3 X.sub.a M'.sub.b O.sub.c (I) where M is at least one of K, Rb and Cs; X is at least one of Ba, Zn, Ga, Cd and Ti when a>0; M' is at least one of Ca, Mg, Ta, Zr, Ce, Ni, Co, Cr, Fe and Tl when b>0; a is a number of 0 to about 2; b is a number of 0 to about 2; and c is a number that satisfies the valence requirements of the other elements present.
Claim 3
Dependent Claim
7 words
The process of claim 1 where a>0.
Claim 4
Dependent Claim
11 words
The process of claim 2 where M is K or Rb.
Claim 5
Dependent Claim
13 words
The process of claim 3 where X is Ba, Zn, Cd or Ti.
Claim 6
Dependent Claim
7 words
The process of claim 4 where b>0.
Claim 7
Dependent Claim
14 words
The process of claim 5 where M' is Ca, Mg, Tl, Ta or Zr.
Claim 8
Dependent Claim
9 words
The process of claim 4 where b is 0.
Claim 9
Dependent Claim
60 words
The process of claim 7 where the subscript value of P in formula I is a number of about 0.8 to about 1.5, of Bi a number of about 0.15 to 1, of M a number of about 0.15 to 2, of Cu a number of about 0.2 to 0.8 and of V a number of about 0.2 to 0.8.
Claim 10
Dependent Claim
10 words
The process of claim 8 where the catalyst is unsupported.
Claim 11
Dependent Claim
13 words
The process of claim 8 where the catalyst is diluted with a support.
Claim 12
Dependent Claim
14 words
The process of claim 10 where the support is a low surface area alumina.
Claim 13
Dependent Claim
14 words
The process of claim 10 where the compound of formula II is isobutyric acid.
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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |