US4667053A
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US
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Process for oxidative carbonylation using a catalyst having a novel support
Assignee: Huntsman Corp
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Filing: 1986-06-30
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Granted: 1987-05-19
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Expires: 2006-06-30
Abstract
Abstract This invention relates to the carbonylation of olefins. More particularly it involves the carbonylation of an α-olefins such as ethylene to form diesters, such as, for example, dimethyl succinate, 3-methoxypropionate and dimethylcarbonate by a process comprising reacting said olefin with carbon monoxide, oxygen and an alkanol in the presence of a heterogeneous palladium/copper catalyst, on a polymer support.
Inventors
- 👤 Jiang-Jen Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:35
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/36; C07C67/38
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
142 words
A process for oxidative carbonylation of an alpha olefin containing 2 to 20 carbon atoms per molecule by reaction with carbon monoxide and oxygen in the presence of an alkanol coreactant containing 1 to 20 carbon atoms per molecule to form an aliphatic dicarboxylic ester having the formula: ##STR3## wherein R' is an alkyl group from said alkanol coreactant, said process being conducted in the presence of a heterogeneous, solid supported catalyst wherein the catalyst is selected from the group consisting of (1) palladium and copper and (2) mixed palladium on carbon and copper on a polymer support at a temperature of at least 50° C. and a pressure of at least 500 psi wherein the support is a polymer selected from the group consisting of pyrrolidones and polyamines, and the type of polymer used for the support affects selectivities for esters.
Claim 2
Dependent Claim
142 words
A process for oxidative carbonylation of an alpha olefin containing 2 to 20 carbon atoms per molecule by reaction with carbon monoxide and oxygen in the presence of an alkanol coreactant containing 1 to 20 carbon atoms per molecule to form an aliphatic dicarboxylic ester having the formula: ##STR3## wherein R' is an alkyl group from said alkanol coreactant, said process being conducted in the presence of a heterogeneous, solid supported catalyst wherein the catalyst is selected from the group consisting of (1) palladium and copper and (2) mixed palladium on carbon and copper on a polymer support at a temperature of at least 50° C. and a pressure of at least 500 psi wherein the support is a polymer selected from the group consisting of pyrrolidones and polyamines, and the type of polymer used for the support affects selectivities for esters.
Claim 3
Dependent Claim
36 words
A process according to claim 1 wherein the α-olefin is ethylene, the alkanol is coreactant methanol, the heterogeneous catalyst is palladium and copper and the polymer is selected from the group consisting of polyamine and polyvinylpyrrolidone.
Claim 4
Dependent Claim
16 words
A process according to claim 2 wherein the temperature is from 80° C. to 150° C.
Claim 5
Dependent Claim
18 words
A process according to claim 2 wherein the carbon monoxide pressure is from 500 psi to 2500 psi.
Claim 6
Dependent Claim
18 words
A process according to claim 2 wherein the carbon monoxide to oxygen ratio is from 5:1 to 20:1.
Claim 7
Dependent Claim
21 words
A process according to claim 1 wherein the support for the palladium and copper catalyst is a solid form of polyamine.
Claim 8
Dependent Claim
19 words
A process according to claim 1 wherein the support for the palladium catalyst is a solid form of polyvinylpyrrolidone.
Claim 9
Dependent Claim
26 words
A process according to claim 1 wherein the palladium and copper-containing catalyst is deposited on said support in a concentration range of 0.1 to 20 wt%.
Claim 10
Dependent Claim
35 words
A process according to claim 2 wherein a copper catalyst is supported on a solid support selected from the group consisting of a polyvinylpyrrolidone and polyamine in combination with a palladium catalyst supported on carbon.
References Cited (Backward Citations)
US4281174A
Cited
US4552976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |