US4056487A
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Vanadium phosphorus oxygen oxidation catalysts useful for preparing anhydrides from alkanes
Assignee: Petro Tex Chemical Corp
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Filing: 1975-10-02
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Granted: 1977-11-01
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Expires: 1995-10-02
Abstract
Abstract A catalyst complex useful for the partial oxidation of alkanes to the corresponding anhydrides, e. g., converting normal C 4 hydrocarbons to maleic anhydride in vapor phase, comprising as components vanadium, phosphorus, oxygen, Nb, Cu, Mo, Ni, Co and Cr. Preferred are those compositions containing in additiion one or more of Ce, Nd, Ba, Hf, U, Ru, Re, Li or Mg.
Inventors
- 👤 Ralph O. Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:07
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/16; C07C51/21; C07C51/215; B; B01; B01J; B01J23/00; B01J23/002; B01J27/00; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; B01J2523/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
85 words
A catalyst composition for use in the partial oxidation to C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus, oxygen and a modifying component consisting of the elements Nb, Cu, Mo, Ni, Co and Cr or the elements Nb, Cu, Mo, Ni, Co and Cr and one or more of the elements selected from the group of Ce, Nd, Ba, Hf, U, Ru, Re, Li, or Mg, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 2
Dependent Claim
85 words
A catalyst composition for use in the partial oxidation to C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus, oxygen and a modifying component consisting of the elements Nb, Cu, Mo, Ni, Co and Cr or the elements Nb, Cu, Mo, Ni, Co and Cr and one or more of the elements selected from the group of Ce, Nd, Ba, Hf, U, Ru, Re, Li, or Mg, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 3
Dependent Claim
79 words
The catalyst composition according to claim 1 wherein the atomic ratio of vanadium:phosphorus:Nb:Cu:Mo:Ni:Co:Ce:Nd:Cr:Ba:Hf:U:Ru:Re:Li:Mg is 1:0.9 to 1.3:.001 to 0.125:0.022 to 0.201:0.0025 to 0.040:0.0022 to 0.045:0.004 to 0.066:0.0054 to 0.20:0.0022 to 0.20:0.0003 to 0.003:0.0023 to 0.0585:0.0023 to 0.0409:0.0033 to 0.0993:0.0008 to 0.020:0.0002 to 0.0074:0.0072 to 0.179:0.0088 to 0.222, respectively, the total atomic ratio of Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr, Ba, Hf, U, Ru, Re, Li and Mg and being in the range s of 0.005 to 0.4.
Claim 4
Dependent Claim
66 words
A catalyst composition for use in the partial oxidation of C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus and oxygen and a modifying component of Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr, Ba and Hf or Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr and Ba, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 5
Dependent Claim
66 words
A catalyst composition for use in the partial oxidation of C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus and oxygen and a modifying component of Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr, Ba and Hf or Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr and Ba, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 6
Dependent Claim
23 words
The catalyst composition according to claim 3 wherein the modifying component is Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr, Ba and Hf.
Claim 7
Dependent Claim
22 words
The catalyst composition according to claim 3 wherein the modifying component is Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr and Ba.
Claim 8
Dependent Claim
62 words
The catalyst composition according to claim 4 wherein the atomic ratio of vanadium:phosphorus:Nb:Cu:Mo:Ni:Co:Ce:Nd:Cr:Ba:Hf is 1:0.90 to 1.3:.001 to 0.125:0.022 to 0.201:0.0025 to 0.040:0.0022 to 0.045:0.0040 to 0.066:0.0054 to 0.2:0.0022 to 0.20:0.0003 to 0.003:0.0023 to 0.0585:0.0023 to 0.0409, respectively, the total atomic ratio of Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr, Ba and Hf being in the range of 0.005 to 0.4.
Claim 9
Dependent Claim
57 words
The catalyst composition according to claim 5 wherein the atomic ratio of vanadium:phosphorus:Nb:Cu:Mo:Ni:Co:Ce:Nd:Cr:Ba is 1:0.90 to 1.3:0.001 to 0.125:0.022 to 0.040:0.0022 to 0.045:0.0040 to 0.066:0.0054 to 0.20:0.0022 to 0.20:0.0003 to 0.003:0.0023 to 0.0585, respectively, the total atomic ratio of Nb, Cu, Mo, Ni, Co, Ce, Nd, Cr and Ba being in the range of 0.005 to 0.4.
Claim 10
Dependent Claim
99 words
A catalyst composition for use in the partial oxidation of C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus and oxygen and a modifying component of Nb, Cu, Mo, Ni, Co and Cr and (1) one or more of the elements selected from the group consisting of Ce, Nd, Ba, Hf, Ru, Re, Li and Mg or (2) U and one or more of the elements selected from the group consisting of Ce, Nd, Ba, Hf, Ru, Re, Li and Mg, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 11
Dependent Claim
99 words
A catalyst composition for use in the partial oxidation of C 4 to C 10 alkane hydrocarbons to anhydrides consisting of vanadium, phosphorus and oxygen and a modifying component of Nb, Cu, Mo, Ni, Co and Cr and (1) one or more of the elements selected from the group consisting of Ce, Nd, Ba, Hf, Ru, Re, Li and Mg or (2) U and one or more of the elements selected from the group consisting of Ce, Nd, Ba, Hf, Ru, Re, Li and Mg, wherein the atomic ratio of vanadium:phosphorus:modifying component is 1:0.90 to 1.3:0.005 to 0.4, respectively.
Claim 12
Dependent Claim
32 words
The catalyst composition according to claim 8 wherein the modifying component is Nb, Cu, Mo, Ni, Co, Cr and one or more of Ce, Nd, Ba, Hf, Ru, Re, Li or Mg.
Claim 13
Dependent Claim
33 words
The catalyst composition according to claim 8 wherein the modifying component is Nb, Cu, Mo, Ni, Co, Cr, U and one or more of Ce, Nd, Ba, Hf, Ru, Re, Li or Mg.
Claim 14
Dependent Claim
74 words
The catalyst composition according to claim 9 wherein the atomic ratio of vanadium:phosphorus:Nb:Cu:Mo:Ni:Co:Cr:Ce:Nd:Ba:Hf:Ru:Re:Li:Mg is 1:0.90 to 1.3:0.001 to 0.125:0.022 to 0.201:0.0025 to 0.04:0.0022 to 0.045:0.004 to 0.066:0.0003 to 0.003:0.0054 to 0.20:0.0022 to 0.20:0.0023 to 0.0585:0.0023 to 0.409:0.0002 to 0.02015:0.0002 to 0.0074:0.0072 to 0.179:0.0088 to 0.222, respectively, the total atomic ratio of Nb, Cu, Mo, Ni, Co, Cr, Ce, Nd, Ba, Hf, Ru, Re, Li and Mg being in the range of 0.005 to 0.4.
Claim 15
Dependent Claim
74 words
The catalyst composition according to claim 10 wherein the atomic ratio of vanadium:phosphorus:Nb:Cu:Mo:Ni:Co:Cr:U:Ce:Nd:Ba:Hf:Re:Li:Mg is 1:0.90 to 1.3:0.001 to 0.125:0.022 to 0.201:0.0025 to 0.04:0.0022 to 0.045:0.004 to 0.066:0.0003 to 0.003:0.0033 to 0.0993:0.0054 to 0.20:0.0022 to 0.20:0.0023 to 0.0585:0.0023 to 0.0409:0.0002 to 0.0074:0.0072 to 0.179:0.0088 to 0.222, respectively, the total atomic ratio of Nb, Cu, Mo, Ni, Co, Cr, U, Ce, Nd, Ba, Hf, Re, Li and Mg being in the range of 0.005 to 0.4.
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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) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |