US3989674A
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Novel gold-copper catalysts for the partial oxidation of olefins
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1969-03-26
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Granted: 1976-11-02
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Expires: 1989-03-26
Abstract
Abstract In the partial oxidation of olefinic hydrocarbons directly to their corresponding unsaturated carbonyl compounds, a significant increase in selectivity to the unsaturated carbonyl compounds is obtained by reacting an olefinic compound with oxygen in the presence of a novel bimetallic catalyst system comprising a combination of gold and copper.
Inventors
- 👤 John H. Sinfelt
- 👤 Allan E. Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:56
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/8926; C07C45/36
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
A process for the partial oxidation of an unsubstituted monoolefinic compound, comprising from 3 to 18 carbon atoms, to its corresponding unsaturated carbonyl compound which comprises passing said monoolefinic compound in admixture with oxygen at a temperature in the range of from about 300° to about 700° F. over a catalyst comprising gold and copper, said catalyst having a molar ratio of gold to copper of from about 0.25 to 4.
Claim 2
Dependent Claim
71 words
A process for the partial oxidation of an unsubstituted monoolefinic compound, comprising from 3 to 18 carbon atoms, to its corresponding unsaturated carbonyl compound which comprises passing said monoolefinic compound in admixture with oxygen at a temperature in the range of from about 300° to about 700° F. over a catalyst comprising gold and copper, said catalyst having a molar ratio of gold to copper of from about 0.25 to 4.
Claim 3
Dependent Claim
96 words
A process for the partial oxidation of a monoolefinic hydrocarbon to its corresponding unsaturated carbonyl compound which comprises passing an unsubstituted monoolefinic hydrocarbon having the formula: ##STR2## wherein R, R 1 and R 2 are each selected from the group consisting of hydrogen or a C 1 to C 5 alkyl group in admixture with oxygen over a catalyst consisting essentially of gold and copper, said catalyst having a molar ratio of gold to copper of from about 0.25 to about 4 at a temperature in the range of from about 300° to about 700° F.
Claim 4
Dependent Claim
96 words
A process for the partial oxidation of a monoolefinic hydrocarbon to its corresponding unsaturated carbonyl compound which comprises passing an unsubstituted monoolefinic hydrocarbon having the formula: ##STR2## wherein R, R 1 and R 2 are each selected from the group consisting of hydrogen or a C 1 to C 5 alkyl group in admixture with oxygen over a catalyst consisting essentially of gold and copper, said catalyst having a molar ratio of gold to copper of from about 0.25 to about 4 at a temperature in the range of from about 300° to about 700° F.
Claim 5
Dependent Claim
84 words
The process for the partial oxidation of a monoolefinic hydrocarbon to its corresponding unsaturated aldehyde which comprises passing an unsubstituted monoolefinic hydrocarbon having the formula: ##STR3## wherein R 2 is hydrogen and R and R 1 are each selected from the group consisting of C 1 to C 5 alkyl groups in admixture with oxygen over a catalyst consisting of a refractory oxide impregnated with gold and copper, said catalyst having a gold to copper molar ratio of from about 0.25 to about 4.
Claim 6
Dependent Claim
84 words
The process for the partial oxidation of a monoolefinic hydrocarbon to its corresponding unsaturated aldehyde which comprises passing an unsubstituted monoolefinic hydrocarbon having the formula: ##STR3## wherein R 2 is hydrogen and R and R 1 are each selected from the group consisting of C 1 to C 5 alkyl groups in admixture with oxygen over a catalyst consisting of a refractory oxide impregnated with gold and copper, said catalyst having a gold to copper molar ratio of from about 0.25 to about 4.
Claim 7
Dependent Claim
27 words
The process of claim 3 wherein the amount of gold on the refractory oxide is in the range of from about 0.1 to about 25 wt. %.
Claim 8
Dependent Claim
27 words
The process of claim 4 wherein the amount of copper on the refractory oxide is in the range of from about 0.1 to about 50 wt. %.
Claim 9
Dependent Claim
11 words
The process of claim 5 wherein the refractory oxide is silica.
Claim 10
Dependent Claim
25 words
The process of claim 6 wherein R 1 is hydrogen and R 2 is selected from the group consisting of hydrogen and a methyl group.
Claim 11
Dependent Claim
20 words
The process of claim 3 wherein said monoolefinic hydrocarbon is chosen from the group consisting of propylene, isobutylene and 1-butene.
Claim 12
Dependent Claim
60 words
The process for the partial oxidation of a methylated aromatic selected from the group consisting of toluene and xylene to its corresponding aldehyde which comprises passing said methylated aromatic in admixture with oxygen over a catalyst consisting of a refractory oxide impregnated with gold and copper, said catalyst having a gold-copper mole ratio of from about 0.25 to about 4.
Claim 13
Dependent Claim
60 words
The process for the partial oxidation of a methylated aromatic selected from the group consisting of toluene and xylene to its corresponding aldehyde which comprises passing said methylated aromatic in admixture with oxygen over a catalyst consisting of a refractory oxide impregnated with gold and copper, said catalyst having a gold-copper mole ratio of from about 0.25 to about 4.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |