US4126581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst containing copper oxide and zinc oxide, its manufacture and its use for the conversion of carbon monoxide
Assignee: Pro Catalyse SA
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Filing: 1977-05-27
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Granted: 1978-11-21
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Expires: 1997-05-27
Abstract
Abstract Catalyst for the conversion of carbon monoxide in the presence of water, to produce hydrogen, or in the presence of hydrogen, to produce methanol, said catalyst containing 10 - 60% by weight of copper oxide, 5 - 40% by weight of zinc oxide and 30 - 70% by weight of aluminous cement, the total content of copper oxide and zinc oxide being from 30 to 70% by weight.
Inventors
- 👤 Andre Sugier
- 👤 Philippe Courty
- 👤 Edouard Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/12; C01B3/16; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/80; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/153; C07C29/154; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
93 words
A catalyst containing 10-60% by weight of copper oxide, 5-40% by weight of zinc oxide and 30 to 70% of aluminous cement, the total content of copper oxide and zinc oxide being from 30 to 70% by weight, said aluminous cement containing 10-50% by weight of CaO and from 30 to 85% by weight Al 2 O 3 , the total content of CaO and Al 2 O 3 being at least 70% by weight and being sufficient to provide at least 15-50% of calcium aluminates based on the weight of the catalyst.
Claim 2
Dependent Claim
93 words
A catalyst containing 10-60% by weight of copper oxide, 5-40% by weight of zinc oxide and 30 to 70% of aluminous cement, the total content of copper oxide and zinc oxide being from 30 to 70% by weight, said aluminous cement containing 10-50% by weight of CaO and from 30 to 85% by weight Al 2 O 3 , the total content of CaO and Al 2 O 3 being at least 70% by weight and being sufficient to provide at least 15-50% of calcium aluminates based on the weight of the catalyst.
Claim 3
Dependent Claim
22 words
A catalyst according to claim 1, which contains 20-30% of copper oxide, 20-30% of zinc oxide and 40-60% of said aluminous cement.
Claim 4
Dependent Claim
68 words
A process for manufacturing a catalyst according to claim 1 comprising admixing an aluminous cement with a copper compound and a zinc compound, in proportions calculated as CuO, ZnO and said aluminous cement, respectively of 10-60%, 5-40% and 30-70% of dry weight, adding water to the mixture, shaping the latter and heating to convert the zinc and copper compounds to the corresponding oxides and to activate the catalyst.
Claim 5
Dependent Claim
17 words
A process according to claim 3, in which the mixture is shaped before hardening of the cement.
Claim 6
Dependent Claim
14 words
A process according to claim 4, in which the mixture is shaped to pills.
Claim 7
Dependent Claim
22 words
A process according to claim 3 wherein ammonium carbonate is added to the mixture of the copper compound and the zinc compound.
Claim 8
Dependent Claim
35 words
A process according to claim 3, wherein the copper and zinc compounds are copper and zinc salts which are decomposable by heating to the corresponding oxides at a temperature of from 200° and 600° C.
Claim 9
Dependent Claim
19 words
A process according to claim 3, wherein the copper and zinc compounds are respectively zinc carbonate and copper carbonate.
Claim 10
Dependent Claim
23 words
A process according to claim 3, wherein said heating is carried out at 200°-600° C. in the presence of a molecular oxygen-containing gas.
Claim 11
Dependent Claim
9 words
A catalyst produced by the process of claim 9.
Claim 12
Dependent Claim
14 words
A catalyst in the form of pills produced by the process of claim 5.
Claim 13
Dependent Claim
14 words
A catalyst according to claim 1, containing 20-30% by weight of said calcium aluminates.
References Cited (Backward Citations)
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US3546140A
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US3663457A
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Cited
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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) | 1981-11-20 | 1982-05-22 | 1982-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-20 | 1986-05-22 | 1986-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-20 | 1990-05-22 | 1990-11-21 | $7700.00 | Window Closed / Lapsed |