US4181630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for synthesis of methanol
Assignee: United States Department of the Interior
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Filing: 1978-11-30
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Granted: 1980-01-01
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Expires: 1998-11-30
Abstract
Abstract A catalyst for synthesis of methanol is prepared from an alloy of copper with a metal from the rare earth or actinide series or group IVB of the periodic table. The alloy is reacted with a gas having sufficient oxidizing power to oxidize the rare earth, actinide or group IVB metal.
Inventors
- 👤 Elizabeth G. Baglin
- 👤 Gary B. Atkinson
- 👤 Larry J. Nicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:21
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/154; B; B01; B01J; B01J23/00; B01J23/70; B01J23/72; B01J23/76; B01J23/83; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
64 words
A method for preparation of a catalyst comprising: a. forming an alloy of copper and a second metal or combination of metals from the group consisting of yttrium, rare earth metals, actinide metals and metals of group IVB of the periodic table; and b. reacting said alloy in a gaseous atmosphere in order to oxidize the second metal without substantial oxidation of the copper.
Claim 2
Independent Claim
64 words
A method for preparation of a catalyst comprising: a. forming an alloy of copper and a second metal or combination of metals from the group consisting of yttrium, rare earth metals, actinide metals and metals of group IVB of the periodic table; and b. reacting said alloy in a gaseous atmosphere in order to oxidize the second metal without substantial oxidation of the copper.
Claim 3
Dependent Claim
14 words
The method of claim 1 in which the second metal consists essentially of thorium.
Claim 4
Dependent Claim
34 words
The method of claim 1 in which the alloy is initially reacted in an atmosphere consisting essentially of air, and subsequently in an atmosphere consisting essentially of a mixture of hydrogen and carbon monoxide.
Claim 5
Dependent Claim
31 words
The method of claim 3 in which the reaction in air is conducted at a temperature of about 200 to 500° C. for a period of about 10 to 30 hours.
Claim 6
Dependent Claim
22 words
The method of claim 1 in which the alloy is reacted in an atmosphere comprising a mixture of hydrogen and water vapor.
Claim 7
Dependent Claim
22 words
The method of claim 1 in which the alloy is reacted in an atmosphere comprising a mixture of hydrogen and carbon monoxide.
Claim 8
Dependent Claim
17 words
The method of claim 1 in which the alloy is reacted in an atmosphere of carbon dioxide.
Claim 9
Dependent Claim
9 words
A catalyst prepared by the method of claim 1.
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) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |