US4155938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of olefins
Assignee: Nippon Shokubai Co Ltd
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Filing: 1977-09-08
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Granted: 1979-05-22
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Expires: 1997-09-08
Abstract
Abstract A catalyst for oxidation of olefins which has a composition of the general formula Mo.sub.a Bi.sub.b Fe.sub.c Co.sub.d Ni.sub.e Q.sub.f R.sub.g X.sub.h Z i O j wherein Q is at least one element selected from Au and Nd; R is at least one elemet selected from K, Rb, Cs and Tl; X is at least one lement selected from P, As and B; Z is at least one element selected from Ce, Ti, Te, Zn, Ge, Sn, Cr, Ga, La, In, Al, Cd, Pd, Mn, V, W, Pb, Nb, Ag, Zr, Cu and U; a, b, c, d, e, f, g, h and i respectively represent the numbers of Mo, Bi, Fe, Co, Ni, Q, R, X and Z atoms, and when a is 12, b is 0.1-10, c is 0.5-40, d is 0-12, e is 0-12 with the proviso that the sum of d and e is 0.5-15, f is 0.1-8, g is 0.01-5, h is 0-5, i is 0-12; and j is the number of oxygen atoms which satisfies the atomic valences of the other elements.
Inventors
- 👤 Haruhisa Yamamoto
- 👤 Novuaki Yoneyama
- 👤 Shinichi Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:21
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/887; B01J23/8871; B01J23/8876; B01J23/89; B01J23/8933; B01J23/8993; B01J37/00; B01J37/02; B01J37/0236; C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B01J2523/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
214 words
A process for preparing unsaturated aldehydes, which comprises oxidizing olefins containing 3 carbon atoms in the straight chain in the vapor phase with molecular oxygen as the oxidizing source in the presence of a catalyst at a temperature of 250° to 700° C., said catalyst having a composition of the following formula: Mo.sub.a Bi.sub.b Fe.sub.c Co.sub.d Ni.sub.e Q.sub.f R.sub.g X.sub.h Z.sub.i O.sub.j wherein Q is at least one element selected from Au and Nd; R is at least one element selected from K, Rb, Cs and Tl; X is at least one element selected from P, As and B; Z is at least one element selected from Ce, Ti, Te, Zn, Ge, Sn, Cr, Ga, La, In, Al, Cd, Pd, Mn, V, W, Pb, Nb, Ag, Zr, Cu and U; a, b, c, d, e, f, g, h and i respectively represent the numbers of Mo, Bi, Fe, Co, Ni, Q, R, X and Z atoms, and when a is 12, b is 0.1-10, c is 0.5-40, d is 0-12, e is 0-12 with the proviso that the sum of d and e is 0.5-15, f is 0.1-8, g is 0.01-5, h is 0-5, i is 0-12; and j is the number of oxygen atoms which satisfies the atomic valences of the other elements.
Claim 2
Dependent Claim
214 words
A process for preparing unsaturated aldehydes, which comprises oxidizing olefins containing 3 carbon atoms in the straight chain in the vapor phase with molecular oxygen as the oxidizing source in the presence of a catalyst at a temperature of 250° to 700° C., said catalyst having a composition of the following formula: Mo.sub.a Bi.sub.b Fe.sub.c Co.sub.d Ni.sub.e Q.sub.f R.sub.g X.sub.h Z.sub.i O.sub.j wherein Q is at least one element selected from Au and Nd; R is at least one element selected from K, Rb, Cs and Tl; X is at least one element selected from P, As and B; Z is at least one element selected from Ce, Ti, Te, Zn, Ge, Sn, Cr, Ga, La, In, Al, Cd, Pd, Mn, V, W, Pb, Nb, Ag, Zr, Cu and U; a, b, c, d, e, f, g, h and i respectively represent the numbers of Mo, Bi, Fe, Co, Ni, Q, R, X and Z atoms, and when a is 12, b is 0.1-10, c is 0.5-40, d is 0-12, e is 0-12 with the proviso that the sum of d and e is 0.5-15, f is 0.1-8, g is 0.01-5, h is 0-5, i is 0-12; and j is the number of oxygen atoms which satisfies the atomic valences of the other elements.
Claim 3
Dependent Claim
47 words
The process of claim 1 wherein when a is 12, b is 0.5-7, c is 1-35, d is 0-10, e is 0-10 with the proviso that the sum of d and e is 0.5-12, f is 0.1-6, g is 0.01-4, h is 0-4, and i is 0-8.
Claim 4
Dependent Claim
47 words
The process of claim 1 wherein when a is 12, b is 0.5-7, c is 8-30, d is 0-10, e is 0-10 with the proviso that the sum of d and e is 0.5-12, f is 0.1-4, g is 0.01-3, h is 0-3, and i is 0-8.
Claim 5
Dependent Claim
9 words
The process of claim 1 wherein R is K.
Claim 6
Dependent Claim
9 words
The process of claim 1 wherein R is Rb.
Claim 7
Dependent Claim
9 words
The process of claim 1 wherein R is Cs.
Claim 8
Dependent Claim
9 words
The process of claim 1 wherein R is Tl.
Claim 9
Dependent Claim
9 words
The process of claim 1 wherein Q is Au.
Claim 10
Dependent Claim
9 words
The catalyst of claim 1 wherein Q is Nd.
Claim 11
Dependent Claim
14 words
The process of claim 1 wherein air is used as a source of oxygen.
Claim 12
Dependent Claim
18 words
The process of claim 1 wherein the reaction is carried out in the presence of an inert gas.
Claim 13
Dependent Claim
14 words
A process according to claim 1, wherein the temperature of reaction is 250°-550° C.
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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |