Patent US4096188A successfully refreshed from Google Patents.
US4096188A
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Preparation of straight chain aldehydes
Assignee: Chevron USA Inc
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Filing: 1976-12-20
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Granted: 1978-06-20
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Expires: 1996-12-20
Abstract
Abstract Straight chain aldehydes are prepared from straight chain olefins of about 3 to 20 carbon atoms by catalytic hydroformylation with carbon monoxide and hydrogen in the presence of cobalt catalyst and in the presence of soluble primary, secondary or tertiary aliphatic, or cycloaliphatic amine modifier of 1 to 12 carbon atoms.
Inventors
- 👤 John B. Wilkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:39
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/49; C07C45/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
111 words
In the catalytic hydroformylation process of preparing straight chain aldehydes from straight chain olefins by the reaction of straight chain olefins of about 3 to 20 carbon atoms with carbon monoxide and hydrogen under hydroformylation conditions in the presence of a cobalt catalyst at a temperature of about 75° to 200° C and a pressure of about 500 to 5000 pounds per square inch, the improvement which comprises carrying out the reaction in the presence of a monoamine modifier consisting essentially of methylamine, dimethylamine, trimethylamine, diethylamine, n-butylamine, benzyl amine, allyl amine, or piperidine, said modifier being present in amounts from about 0.05 to 1.0 mols of amine per mol of cobalt.
Claim 2
Dependent Claim
111 words
In the catalytic hydroformylation process of preparing straight chain aldehydes from straight chain olefins by the reaction of straight chain olefins of about 3 to 20 carbon atoms with carbon monoxide and hydrogen under hydroformylation conditions in the presence of a cobalt catalyst at a temperature of about 75° to 200° C and a pressure of about 500 to 5000 pounds per square inch, the improvement which comprises carrying out the reaction in the presence of a monoamine modifier consisting essentially of methylamine, dimethylamine, trimethylamine, diethylamine, n-butylamine, benzyl amine, allyl amine, or piperidine, said modifier being present in amounts from about 0.05 to 1.0 mols of amine per mol of cobalt.
Claim 3
Dependent Claim
12 words
The process of claim 1 in which the amine modifier is n-butylamine.
Claim 4
Dependent Claim
12 words
The process of claim 1 in which the amine modifier is diethylamine.
Claim 5
Dependent Claim
15 words
The process of claim 1 in which the straight chain olefin is an internal olefin.
Claim 6
Dependent Claim
11 words
The process of claim 1 in which the olefin is 1-octene.
Claim 7
Dependent Claim
22 words
The process of claim 1 in which the olefin is a mixture of 85 mol percent 2-octene and 15 mol percent 1-octene.
Claim 8
Dependent Claim
15 words
The process of claim 1 in which the temperature is about 100° to 150° C.
References Cited (Backward Citations)
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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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |