US4550097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for the production of allyl acetate
Assignee: Phillips Petroleum Co
•
Filing: 1984-08-20
•
Granted: 1985-10-29
•
Expires: 2004-08-20
Abstract
Abstract A process for providing high space time yields in the acetoxylation of propylene involving the use of a catalyst consisting essentially of palladium, potassium, bismuth, and a promoting amount of magnesium or a combination of magnesium and barium.
Inventors
- 👤 Charles A. Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:04
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/644; B01J23/6445; C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
36 words
A catalyst suitable for the acetoxylation of propylene consisting essentially of metals on a support said metals consisting essentially of potassium, bismuth, palladium, and a promoting amount of magnesium or a combination of magnesium and barium.
Claim 2
Dependent Claim
36 words
A catalyst suitable for the acetoxylation of propylene consisting essentially of metals on a support said metals consisting essentially of potassium, bismuth, palladium, and a promoting amount of magnesium or a combination of magnesium and barium.
Claim 3
Dependent Claim
37 words
A catalyst according to claim 1 wherein the catalyst contains 1 to 3 weight percent palladium, 3 to 7 weight percent potassium, and 1 to 3 weight percent bismuth, said weight percentages being based on the support.
Claim 4
Dependent Claim
29 words
A catalyst according to claim 2 wherein the magnesium is at least about 0.2 weight percent and less than 0.5 weight percent based on the weight of the support.
Claim 5
Dependent Claim
18 words
A catalyst according to claim 3 wherein said catalyst consists essentially of palladium, potassium, bismuth, magnesium, and support.
Claim 6
Dependent Claim
11 words
A catalyst according to claim 4 wherein said support is silica.
Claim 7
Dependent Claim
47 words
A catalyst according to claim 5 wherein said catalyst contains about 1 to about 2 weight percent palladium, about 4 to about 5 weight percent potassium, about 1.5 to about 2.5 weight percent bismuth, and about 0.3 weight percent magnesium based on the weight of the support.
Claim 8
Dependent Claim
34 words
A catalyst according to claim 6 wherein said catalyst is prepared by dissolving acetates of the metal components in glacial acetic acid, then impregnating said silica support, and then drying the resulting solid catalyst.
Claim 9
Dependent Claim
32 words
A catalyst according to claim 2 wherein said catalyst also contains barium and the barium is at least 1 weight percent and no greater than 2 weight percent based on the support.
Claim 10
Dependent Claim
11 words
A catalyst according to claim 8 wherein said support is silica.
Claim 11
Dependent Claim
47 words
A catalyst according to claim 9 wherein said catalyst contains about 1 to about 2 weight percent palladium, about 4 to about 5 weight percent potassium, about 1.5 to about 2.5 weight percent bismuth, and about 0.3 weight percent magnesium based on the weight of the support.
Claim 12
Dependent Claim
34 words
A catalyst according to claim 10 where said catalyst is prepared by dissolving acetates of the metal component in glacial acetic acid, then impregnating said silica support, and then drying the resulting solid catalyst.
References Cited (Backward Citations)
US3221045A
Cited
US3274238A
Cited
GB1101055A
Cited
US3960930A
Cited
US3600429A
Cited
US3925452A
Cited
US4010198A
Cited
US3950400A
Cited
US3939199A
Cited
US3965153A
Cited
US3965152A
Cited
US3965154A
Cited
US4056563A
Cited
US4133962A
Cited
US4158737A
Cited
US4409396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |