US3948808A
Expired / Lapsed
US
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Zinc aluminate catalyst compositions
Assignee: Phillips Petroleum Co
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Filing: 1974-03-05
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Granted: 1976-04-06
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Expires: 1994-03-05
Abstract
Abstract Catalyst compositions comprising zinc aluminate promoted with at least one metal selected from metals of Groups IIIB, IVB, VB, VIB, VIII, IB, and VA and rare earth metals.
Inventors
- 👤 E. O. Box, Jr.
- 👤 Floyd Farha, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:48
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/63; B01J23/06; B01J23/14; B01J23/16; B01J23/18; B01J23/32; B01J23/40; B01J23/44; B01J23/60; B01J23/70; B01J23/76; B01J23/80; B01J23/84; B01J23/889; B01J23/8892; C; C02; C02F; C02F1/00; C02F1/72; C02F1/725
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
36 words
A catalyst composition consisting of zinc aluminate promoted with 0.05-20 weight percent, calculated as the metal, of (1) at least one of copper, bismuth, manganese, rhenium, nickel, platinum, palladium and iridium and (2) cerium or lanthanum.
Claim 2
Dependent Claim
36 words
A catalyst composition consisting of zinc aluminate promoted with 0.05-20 weight percent, calculated as the metal, of (1) at least one of copper, bismuth, manganese, rhenium, nickel, platinum, palladium and iridium and (2) cerium or lanthanum.
Claim 3
Dependent Claim
19 words
A composition according to claim 1 wherein zinc aluminate is promoted with (1) copper and manganese and (2) lanthanum.
References Cited (Backward Citations)
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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) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |