US4257920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst containing a noble metal of the VIIIth group, copper oxide, zinc oxide and a rare earth metal, its manufacture and use in the conversion of carbon monoxide
Assignee: FRANCAISE DES PRODUITS POR CATALYSE Ste
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Filing: 1979-11-16
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Granted: 1981-03-24
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Expires: 1999-11-16
Abstract
Abstract Catalyst for producing hydrogen by reaction of carbon monoxide with water or for producing methanol by reaction of carbon monoxide with hydrogen, containing by weight 10-60% of copper oxide, 5-40% of zinc oxide, 1-20% of a rare earth metal oxide, 30-70% of aluminous cement and optionally 0.01-1% of a noble metal from group VIII.
Inventors
- 👤 Andre Sugier
- 👤 Philippe Courty
- 👤 Edouard Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:50
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; B01J23/89; B01J23/8933; B01J23/8953; 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: 7
Claim 1
Independent Claim
108 words
A catalyst containing from 0.01 to 1% by weight of a noble metal of the VIII th group, 10 to 60% by weight of a copper oxide, 5 to 40% by weight of zinc oxide, 1 to 20% by weight of at least one rare earth metal oxide, and 30 to 70% of aluminous cement, said aluminous cement comprising from 10 to 50% by weight of at least one oxide selected from CaO and BaO and 30 to 85% by weight of Al 2 O 3 , the total content of CaO, BaO and Al 2 O 3 in said aluminous cement being at least 70% by weight.
Claim 2
Dependent Claim
108 words
A catalyst containing from 0.01 to 1% by weight of a noble metal of the VIII th group, 10 to 60% by weight of a copper oxide, 5 to 40% by weight of zinc oxide, 1 to 20% by weight of at least one rare earth metal oxide, and 30 to 70% of aluminous cement, said aluminous cement comprising from 10 to 50% by weight of at least one oxide selected from CaO and BaO and 30 to 85% by weight of Al 2 O 3 , the total content of CaO, BaO and Al 2 O 3 in said aluminous cement being at least 70% by weight.
Claim 3
Dependent Claim
18 words
A catalyst according to claim 1, containing from 3 to 15% by weight of rare earth metal oxide.
Claim 4
Dependent Claim
93 words
A catalyst according to claim 1, wherein said catalyst is produced such that an aluminous cement is admixed with a compound of a noble metal of the VIII th group, a copper compound, a zinc compound and a rare earth metal compound, the proportions, calculated as CuO, ZnO, rare earth metal oxide and aluminous cement being respectively 10 to 60%, 5 to 40%, 1 to 20% and 30 to 70% by weight in a dry state, and in that water is added and the mixture is shaped and heated to activate the catalyst.
Claim 5
Dependent Claim
16 words
A catalyst according to claim 3, wherein the mixture is shaped, before hardening of the cement.
Claim 6
Dependent Claim
14 words
A catalyst according to claim 4, wherein the catalyst is shaped by bowl granulation.
Claim 7
Dependent Claim
17 words
A catalyst according to claim 3, wherein ammonium carbonate is added to the mixture of the components.
References Cited (Backward Citations)
US3758417A
Cited
US4126581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |