US3716496A
Expired / Lapsed
US
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Catalyst composition for the oxidation and the oxidative dehydrogenation of olefins
Assignee: Mitsubishi Chemical Corp
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Filing: 1970-09-02
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Granted: 1973-02-13
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Expires: 1990-09-02
Abstract
Abstract This invention provides a catalyst composition for an oxidation reaction selected from the group consisting of ammoxidation of olefins to nitriles, oxidation of olefins to aldehydes and oxidative dehydrogenation of olefins (C4 - C8) to diolefins. The catalyst composition has the empirical formula: Fe10 Sb20 60 Me0.01 1 Te0.05 5 Q0.1 20 O40 177 wherein Me is V, Mo and W ; Q is Cu, Ag, Be, Mg, Ca, Sr, Ba, Zn, Cd, La, Ce and Al. The catalyst composition exhibits not only an improved catalytic activity in the reaction but also it shows desirable physical properties particularly fitted for a fluidized-bed reaction.
Inventors
- 👤 T Yoshino
- 👤 S Saito
- 👤 Y Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:36
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J27/00; B01J27/02; B01J27/057; B01J27/0576; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C5/00; C07C5/42; C07C5/48; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
A catalyst composition for an oxidation reaction selected from the group consisting of ammoxidation of olefins to the corresponding unsaturated nitriles; oxidation of olefins to the corresponding unsaturated aldehydes, and oxidative dehydrogenation of olefins having four to eight carbon atoms to the corresponding diolefins, said catalyst composition having the empirical formula: FeaSbbMecTedQeOf wherein Me represents an element selected from the group consisting of V, Mo and W ; Q represents an element selected from the group consisting of Cu, Ag, Be, Mg, Ca, Sr, Ba, Zn, Cd, La, Ce and Al ; and a, b, c, d, and f represent atomic ratios and a 10 b 20 - 60 c 0.01 - 1 d 0.05 - 5 e 0.1 - 20 f the number of oxygen atoms in the oxide produced by combining the above-mentioned components which corresponds to 40 - 177.
Claim 2
Dependent Claim
142 words
A catalyst composition for an oxidation reaction selected from the group consisting of ammoxidation of olefins to the corresponding unsaturated nitriles; oxidation of olefins to the corresponding unsaturated aldehydes, and oxidative dehydrogenation of olefins having four to eight carbon atoms to the corresponding diolefins, said catalyst composition having the empirical formula: FeaSbbMecTedQeOf wherein Me represents an element selected from the group consisting of V, Mo and W ; Q represents an element selected from the group consisting of Cu, Ag, Be, Mg, Ca, Sr, Ba, Zn, Cd, La, Ce and Al ; and a, b, c, d, and f represent atomic ratios and a 10 b 20 - 60 c 0.01 - 1 d 0.05 - 5 e 0.1 - 20 f the number of oxygen atoms in the oxide produced by combining the above-mentioned components which corresponds to 40 - 177.
Claim 3
Dependent Claim
41 words
The catalyst composition according to claim 1 wherein said catalyst comPosition is supported by a silica carrier, and the carrier is present in 10 to 90 percent by weight of the entire catalyst consisting of the catalyst composition and the carrier.
Claim 4
Dependent Claim
21 words
The catalyst composition according to claim 1, activated by heating at a temperature in the range of from 700* to 1,100*C.
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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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |