US3993593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts for the production of carbonyl compounds
Assignee: Tonen General Sekiyu KK
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Filing: 1973-11-12
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Granted: 1976-11-23
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Expires: 1993-11-12
Abstract
Abstract A one-step process is described for preparing carbonyl compounds by the oxidation of an olefin with oxygen in the presence of steam. A novel catalyst is used which is prepared by incorporating palladium and/or a palladium compound and copper chloride in a carrier comprising silica, alumina, or a mixture or complex oxide thereof, and calcining at a temperature in the range of 200 DEG -400 DEG C. One or more compounds of the group of silver, cerium and vanadium may optionally be included in the catalyst composition. Exemplary of the application of the method is the gas phase oxidation of butene to methyl ethyl ketone whereby high selectivity to desired product is obtained.
Inventors
- 👤 Katsumi Kaneko
- 👤 Toshio Hoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:39
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
73 words
A process for the preparation of a catalyst composition useful for the production of carbonyl compounds by reacting olefins with oxygen in the presence of steam, which process consists essentially of calcining at a temperature of 200° to 400° C. a catalyst composition comprising palladium and/or palladium compounds, copper chloride and a carrier selected from the group consisting of silica, alumina and silica-alumina and, without a hydrogenation step, recovering an oxidation catalyst product.
Claim 2
Dependent Claim
73 words
A process for the preparation of a catalyst composition useful for the production of carbonyl compounds by reacting olefins with oxygen in the presence of steam, which process consists essentially of calcining at a temperature of 200° to 400° C. a catalyst composition comprising palladium and/or palladium compounds, copper chloride and a carrier selected from the group consisting of silica, alumina and silica-alumina and, without a hydrogenation step, recovering an oxidation catalyst product.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein said catalyst composition is prepared by providing on said carrier palladium and/or palladium compounds and copper chloride.
Claim 4
Dependent Claim
28 words
The process of claim 1 wherein said catalyst composition is prepared by mixing palladium and/or palladium compounds and copper chloride with said carrier and forming the resulting mixture.
Claim 5
Dependent Claim
88 words
A process for the preparation of a catalyst composition useful for the production of carbonyl compounds by reacting olefins with oxygen in the presence of steam which process consists essentially of calcining at a temperature of 200° to 400° C. a catalyst composition comprising palladium and/or palladium compounds, copper chloride, one or more compounds selected from the group consisting of silver, cerium and vanadium compounds and a carrier selected from the group consisting of silica, alumina and silica-alumina and, without a hydrogenation step, recovering an oxidation catalyst product.
Claim 6
Dependent Claim
88 words
A process for the preparation of a catalyst composition useful for the production of carbonyl compounds by reacting olefins with oxygen in the presence of steam which process consists essentially of calcining at a temperature of 200° to 400° C. a catalyst composition comprising palladium and/or palladium compounds, copper chloride, one or more compounds selected from the group consisting of silver, cerium and vanadium compounds and a carrier selected from the group consisting of silica, alumina and silica-alumina and, without a hydrogenation step, recovering an oxidation catalyst product.
Claim 7
Dependent Claim
38 words
The process of claim 4 wherein said catalyst composition is prepared by providing on said carrier palladium and/or palladium compounds, copper chloride and one or more compounds selected from the group consisting of silver, cerium and vanadium compounds.
Claim 8
Dependent Claim
43 words
The process of claim 4 wherein said catalyst composition is prepared by mixing palladium and/or palladium compounds, copper chloride and one or more compounds selected from the group consisting of silver, cerium and vanadium compounds with said carrier and forming the resulting mixture.
Claim 9
Dependent Claim
10 words
The catalyst whenever made by the process of claim 1.
References Cited (Backward Citations)
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US3228991A
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US3239448A
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US3461157A
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US3701810A
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US3787514A
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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) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |