US4014913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing oxygenated two carbon compounds
Assignee: Union Carbide Corp
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Filing: 1975-06-26
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Granted: 1977-03-29
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Expires: 1995-06-26
Abstract
Abstract A process for the selective preparation of two-carbon atom oxygenated hydrocarbons, namely acetic acid, ethanol, and acetaldehyde, by continuously contacting a reaction mixture containing hydrogen and carbon monoxide with a rhodium-manganese catalyst, at a combination of reaction conditions correlated so as to favor the formation of a substantial proportion of these products.
Inventors
- 👤 Paul Clifford Ellgen
- 👤 Madan Mohan Bhasin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/656; B01J23/6562; C07C29/00; C07C29/15; C07C29/151; C07C29/1512; C07C29/153; C07C29/156; C07C29/157; C07C29/158; C07C45/00; C07C45/49; C07C51/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
The process for selectively producing oxygenated hydrocarbon products of two-carbon atoms from a gaseous mixture containing carbon monoxide and hydrogen wherein said gaseous mixture is continuously contacted with a solid catalyst comprising a combination of rhodium and manganese at reaction conditions correlated to achieve such product in efficiencies, based on carbon consumption, in excess of 10% and obtain the formation of acetic acid, ethanol, and/or acetaldehyde in an amount which is at least about 50 weight percent of the two or more carbon atom compounds obtained by the reaction, which reaction conditions include a temperature within the range of about 150°-450° C, and a pressure within the range of about 15-10,000 psig and wherein the mole ratio of manganese to rhodium in the catalyst is not less than 1:1000.
Claim 2
Dependent Claim
129 words
The process for selectively producing oxygenated hydrocarbon products of two-carbon atoms from a gaseous mixture containing carbon monoxide and hydrogen wherein said gaseous mixture is continuously contacted with a solid catalyst comprising a combination of rhodium and manganese at reaction conditions correlated to achieve such product in efficiencies, based on carbon consumption, in excess of 10% and obtain the formation of acetic acid, ethanol, and/or acetaldehyde in an amount which is at least about 50 weight percent of the two or more carbon atom compounds obtained by the reaction, which reaction conditions include a temperature within the range of about 150°-450° C, and a pressure within the range of about 15-10,000 psig and wherein the mole ratio of manganese to rhodium in the catalyst is not less than 1:1000.
Claim 3
Dependent Claim
25 words
Process of claim 1 wherein said reaction conditions include a mole ratio of hydrogen to carbon monoxide within the range of about 20:1 to 1:20.
Claim 4
Dependent Claim
44 words
Process of claim 2 wherein said reactive conditions include a temperature within the range of about 250°-350° C., a pressure within the range of about 300-5,000 psig, and a mol ratio of hydrogen to carbon monoxide within the range of about 5:1 to 1:5.
Claim 5
Dependent Claim
20 words
Process of claim 1 wherein the space velocity of the gaseous mixture is in excess of about 10 3 GHSV.
Claim 6
Dependent Claim
20 words
Process of claim 4 wherein said space velocity is within the range of about 10 4 to 10 6 GHSV.
References Cited (Backward Citations)
US1984884A
Cited
US3833634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |