US4157987A
Expired / Lapsed
US
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Catalyst compositions especially useful for preparation of unsaturated acids
Assignee: Standard Oil Co
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Filing: 1978-04-24
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Granted: 1979-06-12
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Expires: 1998-04-24
Abstract
Abstract The present invention is a catalyst composition consisting of oxides or oxide complexes that contains catalytically significant amounts of cerium, tungsten, vanadium and molybdenum plus optionally one or more of Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal, an alkaline earth metal, lanthanum or an element of the lanthanoid series. These catalysts are especially useful for producing acrylic acid from acrolein and for producing methacrylic acid from methacrolein.
Inventors
- 👤 Serge R. Dolhyj
- 👤 Ernest C. Milberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/002; B01J23/16; B01J23/24; B01J23/30; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/25; C07C51/252; B01J2523/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
46 words
A catalyst composition consisting of oxides or oxide complexes of cerium, tungsten, vanadium and molybdenum plus optionally one or more of Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal an alkaline earth metal or an element of the lanthanoid series.
Claim 2
Dependent Claim
46 words
A catalyst composition consisting of oxides or oxide complexes of cerium, tungsten, vanadium and molybdenum plus optionally one or more of Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal an alkaline earth metal or an element of the lanthanoid series.
Claim 3
Dependent Claim
22 words
The catalysts of claim 1 wherein more than about 50% of the atoms, exclusive of oxygen and any support material, are molybdenum.
Claim 4
Dependent Claim
11 words
The catalyst composition of claim 1 that contains no optional components.
Claim 5
Dependent Claim
19 words
The catalyst composition of claim 1 that contains Fe, Ni, Co, Zn, Sn, Mn, Mg, Cu or mixture thereof.
Claim 6
Dependent Claim
93 words
The catalyst composition of claim 1 having the empirical formula A.sub.a Ce.sub.b W.sub.c V.sub.d Mo.sub.e O.sub.x wherein A is Co, Ni, Zn, Cu, Mg, Mn, Bi, Ti, Zr, Sn, P, an alkali metal, an alkaline earth metal, lanthanum, an element of the lanthanoid series or mixture thereof; and wherein a is 0 to about 5; b, c and d are about 0.1 to about 10; e is a number of about 6 to about 16; and x is the number of oxygens required to satisfy the valence requirements of the other elements present.
Claim 7
Dependent Claim
26 words
The catalyst composition of claim 5 wherein A is Fe, Ni, Co, Zn, Sn, Mn, Mg, Cu or mixture thereof and a is greater than zero.
Claim 8
Dependent Claim
10 words
The catalyst composition of claim 6 wherein A is copper.
Claim 9
Dependent Claim
10 words
the catalyst composition of claim 6 wherein A is cobalt.
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) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |