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US4656155A
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Reducible metal oxide compositions containing zirconium oxide, yttrium oxide and an alkali metal component
Assignee: Atlantic Richfield Co
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Filing: 1985-07-25
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Granted: 1987-04-07
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Expires: 2005-07-25
Abstract
Abstract A class of mixed oxide catalysts comprising at least one reducible metal oxide, which oxide produces higher hydrocarbons and water when contacted with a hydrocarbon at synthesizing conditions, at least one oxide of zirconium, and at least one oxide of yttrium. The compositions are useful for hydrocarbon conversion, methane conversion, and oxidative dehydrogenation processes characterized by the formation of coproduct water.
Inventors
- 👤 Jack Y. Josefowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:28
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892; B01J23/10; B01J23/38; B01J23/54; B01J23/56; B01J23/63; B01J23/66; B01J23/68; B01J23/688; B01J23/83; C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; C07C5/00; C07C5/42; C07C5/48; C07C2521/00; C07C2521/06; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
61 words
A catalyst composition comprising: (a) at least one reducible metal oxide, which oxide produces higher hydrocarbons and water when contacted with a hydrocarbon at synthesizing conditions; (b) an alkali metal component; (c) oxide of zirconium; and (d) oxide of yttrium, said composition being further characterized by the substantial absence of catalytically effective Ni, Rh, Pd, Ag, Os, Ir, Pt, and Au.
Claim 2
Dependent Claim
61 words
A catalyst composition comprising: (a) at least one reducible metal oxide, which oxide produces higher hydrocarbons and water when contacted with a hydrocarbon at synthesizing conditions; (b) an alkali metal component; (c) oxide of zirconium; and (d) oxide of yttrium, said composition being further characterized by the substantial absence of catalytically effective Ni, Rh, Pd, Ag, Os, Ir, Pt, and Au.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein said zirconia comprises from about 1 to about 40 weight percent of said composition.
Claim 4
Dependent Claim
20 words
The composition of claim 2 wherein said yttria comprises from about 1 to about 15 weight percent of said composition.
Claim 5
Dependent Claim
20 words
The composition of claim 3 wherein said yttria comprises from about 2 to about 10 weight percent of said composition.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein said reducible metal oxide comprises manganese oxide.
Claim 7
Dependent Claim
21 words
The composition of claim 5 wherein said manganese oxide comprises from about 5 to about 30 weight percent of said composition.
References Cited (Backward Citations)
US3231519A
Cited
US4031106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |