US4690912A
Expired / Lapsed
US
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Rhodium-containing carbonylation catalysts with halogen-containing promoter
Assignee: BP Chemicals Ltd
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Filing: 1983-10-14
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Granted: 1987-09-01
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Expires: 2003-10-14
Abstract
Abstract A catalyst system having high activity and selectivity to carbonylation products comprises a rhodium-containing catalytically active component and a halogen-containing promoter component, the halogen being selected from the group consisting of bromine, iodine, bromide compounds, and iodide compounds.
Inventors
- 👤 Frank E. Paulik
- 👤 Arnold Hershman
- 👤 Walter R. Knox
- 👤 James F. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/24; B01J31/2404; B01J27/00; B01J27/06; B01J27/08; B01J31/02; B01J31/0231; B01J31/20; C; C07; C07C; C07C51/00; C07C51/10; C07C51/12; B01J2231/00; B01J2231/30; B01J2231/34; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/822
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
83 words
A catalyst system for the production of carbonylation products by the reaction of a carbonylatable reactant and carbon monoxide which consists essentially of: (a) a rhodium-containing catalytically active component, the component comprising an adduct of a rhodium-containing component source material and carbon monoxide, and (b) a separately added iodine-containing promoter component, the promoter component being selected from the group consisting of iodine and iodide compounds, wherein the separately added iodine atoms of (b) are in excess of the rhodium atoms in the catalyst.
Claim 2
Dependent Claim
83 words
A catalyst system for the production of carbonylation products by the reaction of a carbonylatable reactant and carbon monoxide which consists essentially of: (a) a rhodium-containing catalytically active component, the component comprising an adduct of a rhodium-containing component source material and carbon monoxide, and (b) a separately added iodine-containing promoter component, the promoter component being selected from the group consisting of iodine and iodide compounds, wherein the separately added iodine atoms of (b) are in excess of the rhodium atoms in the catalyst.
Claim 3
Dependent Claim
17 words
The catalyst system of claim 1 wherein the rhodium-containing component source material is a rhodium coordination compound.
Claim 4
Dependent Claim
15 words
The catalyst system of claim 2 wherein the rhodium coordination compound is rhodium dicarbonyl iodide.
Claim 5
Dependent Claim
15 words
The catalyst system of claim 2 wherein the rhodium coordination compound is rhodium bis(triphenylphosphino)carbonyl chloride.
Claim 6
Dependent Claim
13 words
The catalyst system of claim 1 wherein the iodide compound is hydrogen iodide.
Claim 7
Dependent Claim
14 words
The catalyst system of claim 1 wherein the iodide compound is an alkyl iodide.
Claim 8
Dependent Claim
13 words
The catalyst system of claim 6 wherein the alkyl iodide is methyl iodide.
Claim 9
Dependent Claim
14 words
The catalyst system of claim 1 wherein the catalyst system is in solution form.
Claim 10
Dependent Claim
27 words
The catalyst system of claim 8 wherein the concentration of the rhodium-containing catalytically active component in the solution is between 10 -6 molar and 10 -1 molar.
Claim 11
Dependent Claim
27 words
The catalyst system of claim 9 wherein the concentration of the rhodium-containing catalytically active component in the solution is between 10 -4 molar and 10 -2 molar.
Claim 12
Dependent Claim
18 words
The catalyst system of claim 1 wherein the rhodium-containing catalytically active component is dispersed upon an inert support.
Claim 13
Dependent Claim
24 words
The catalyst system of claim 11 wherein the inert support is selected from the group consisting of activated carbon, clays, alumina, silica and silica-alumina.
Claim 14
Dependent Claim
27 words
A catalyst system according to claim 1 wherein the rhodium-containing component source material is a rhodium trihalide and the separately added iodine-containing promoter component is methyl iodide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |