Patent US4287095A successfully refreshed from Google Patents.
US4287095A
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High surface area transition metal catalysts and method of preparing same
Assignee: United States Department of the Interior
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Filing: 1980-06-24
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Granted: 1981-09-01
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Expires: 2000-06-24
Abstract
Abstract Highly active catalysts, suitable for use in hydrogenation and other reactions, are prepared from an alloy of one or more of the Group VIII transition metals with a Group IIA metal, a Group IVB metal, or an actinide. The alloy is ground to the desired particle size and is thereafter reacted with a gas, such as carbon monoxide and hydrogen, to form an intimate physical admixture of the Group VIII metal or its corresponding carbide with the oxide of other metal.
Inventors
- 👤 Gary B. Atkinson
- 👤 Larry J. Nicks
- 👤 Donald J. Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:57
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/78; B01J23/74; B01J23/755; B01J23/83; B01J27/00; B01J27/20; B01J27/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A method of preparing a catalyst which consists essentially of: providing an alloy of nickel and at least one further metal selected from the group consisting of zirconium, hafnium, calcium and uranium; reacting said alloy with a gas comprising H 2 and CO at a temperature of about 300° to 600° C. for a time sufficiently long to oxidize said further metal to produce a catalyst consisting essentially of said nickel and an oxide of said further metal.
Claim 2
Independent Claim
78 words
A method of preparing a catalyst which consists essentially of: providing an alloy of nickel and at least one further metal selected from the group consisting of zirconium, hafnium, calcium and uranium; reacting said alloy with a gas comprising H 2 and CO at a temperature of about 300° to 600° C. for a time sufficiently long to oxidize said further metal to produce a catalyst consisting essentially of said nickel and an oxide of said further metal.
Claim 3
Dependent Claim
51 words
A method according to claim 1 comprising the further step of reacting said catalyst with a carburizing reagent at a temperature below about 250° C. for a time sufficiently long to carburize said nickel to produce a catalyst comprising a carbide of said nickel and an oxide of said further metal.
Claim 4
Dependent Claim
18 words
A method according to claim 2 wherein said carburizing reagent comprises a mixture of carbon monoxide and hydrogen.
Claim 5
Dependent Claim
9 words
A catalyst produced by the process of claim 1.
Claim 6
Dependent Claim
9 words
A catalyst produced by the process of claim 2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |