Patent US5003104A successfully refreshed from Google Patents.
US5003104A
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Carbonylation process and catalyst
Assignee: BP Chemicals Ltd
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Filing: 1988-10-31
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Granted: 1991-03-26
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Expires: 2008-10-31
Abstract
Abstract This invention involves a process for the carbonylation of a carbonylatable reactant, e.g., an alkyl ester, a dialkyl ether or mixtures thereof by reacting the same with carbon monoxide. The process comprises effecting the carbonylation in the presence of a solution of a catalyst system containing a rhodium compound, an iodide and a lithium component at a temperature of from 50° C. to 400° C. at a carbon monoxide partial pressure of 1 psig to 15,000 psig. Hydrogen may also be present. The invention also concerns a carbonylation catalyst system effective for the addition of carbon monoxide to a carbonylatable reactant which comprises a solution containing as essential components a rhodium containing active component, an iodide and a lithium component.
Inventors
- 👤 Frank E. Paulik
- 👤 Arnold Hershman
- 👤 Walter R. Knox
- 👤 Robert G. Schultz
- 👤 James F. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:52
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/26; B01J31/02; B01J31/0231; B01J31/16; B01J31/18; B01J31/1895; B01J31/20; B01J31/24; B01J31/2404; C; C07; C07C; C07C51/00; C07C51/10; C07C51/12; C07C51/14; C07C67/00; C07C67/36; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2231/34; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
73 words
A process for the carbonylation of a carbonylatable reactant selected from the group consisting of alkyl esters, dialkyl ethers, alkyl alcohols, and olefins by reacting same with carbon monoxide, which comprises effecting said carbonylation in the liquid phase in the presence of a solution containing a rhodium compound and lithium iodide at a temperature of from 50 ° to 400 ° C. and a carbon monoxide partial pressure of 1 to 15,000 psig.
Claim 2
Dependent Claim
73 words
A process for the carbonylation of a carbonylatable reactant selected from the group consisting of alkyl esters, dialkyl ethers, alkyl alcohols, and olefins by reacting same with carbon monoxide, which comprises effecting said carbonylation in the liquid phase in the presence of a solution containing a rhodium compound and lithium iodide at a temperature of from 50 ° to 400 ° C. and a carbon monoxide partial pressure of 1 to 15,000 psig.
Claim 3
Dependent Claim
14 words
A process as claimed in claim 1 wherein the catalyst system contains methyl iodide.
Claim 4
Dependent Claim
32 words
A process as claimed in claim 1 wherein the rhodium is present in the liquid phase at a concentration of between 10 -6 moles per liter and 10 -1 moles per liter.
Claim 5
Dependent Claim
17 words
A process as claimed in claim 1 wherein the temperature is from 100° C. to 240° C.
Claim 6
Dependent Claim
17 words
A process as claimed in claim 1 wherein said carbonylation is carried out under substantially anhydrous conditions.
Claim 7
Dependent Claim
22 words
A process as claimed in claim 1 wherein there is a non-interfering amount of hydrogen in the feed gas to the reactor.
Claim 8
Dependent Claim
19 words
A process as claimed in claim 1 wherein the carbonylation is carried out in the presence of acetic acid.
Claim 9
Dependent Claim
29 words
A process as claimed in claim 1 wherein there is about four volume percent of hydrogen based on the total feed of carbon monoxide and hydrogen to the reactor.
Claim 10
Dependent Claim
50 words
A process for carbonylation which comprises effecting said carbonylation with carbon monoxide in the liquid phase in the presence of methyl acetate, a rhodium compound, and lithium iodide at a temperature of from 50° C. to 400° C. at a carbon monoxide partial pressure of 1 psig to 15,000 psig.
Claim 11
Dependent Claim
50 words
A process for carbonylation which comprises effecting said carbonylation with carbon monoxide in the liquid phase in the presence of methyl acetate, a rhodium compound, and lithium iodide at a temperature of from 50° C. to 400° C. at a carbon monoxide partial pressure of 1 psig to 15,000 psig.
Claim 12
Dependent Claim
13 words
A process as defined in claim 9 wherein methyl iodide is also present.
References Cited (Backward Citations)
US2739169A
Cited
US2727902A
Cited
US2710878A
Cited
US2730546A
Cited
US2729651A
Cited
US2789137A
Cited
US3014962A
Cited
US3020314A
Cited
US3065242A
Cited
US3168553A
Cited
US3260767A
Cited
US3338961A
Cited
US3367961A
Cited
US3497488A
Cited
US3700729A
Cited
US3459780A
Cited
US3487112A
Cited
US3579552A
Cited
US4060547A
Cited
US3813428A
Cited
US4690912A
Cited
US3769329A
Cited
US3697611A
Cited
US3769326A
Cited
US4559183A
Cited
US4698187A
Cited
US3933861A
Cited
US3856307A
Cited
US4046807A
Cited
US4733006A
Cited
US4515757A
Cited
US4792620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-25 | 1994-09-24 | 1995-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-25 | 1998-09-24 | 1999-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-25 | 2002-09-24 | 2003-03-26 | $7700.00 | Window Closed / Lapsed |