US4415482A
Expired / Lapsed
US
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Oxidation and ammoxidation catalyst
Assignee: Solutia Inc
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Filing: 1981-11-12
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Granted: 1983-11-15
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Expires: 2001-11-12
Abstract
Abstract Disclosed herein are catalysts useful for oxidation and ammoxidation of hydrocarbons. Such catalysts have the empirical formula BiMoaVbSbcMdOx wherein a is 0.5-2, b is 0.01-0.12, c is 0.01-10, d is 0-0.5 and x is selected to satisfy the valence requirements of the other elements present. In such catalysts, M is one or more elements selected from Groups I-A, II-A, III-A, V-A, VI-A, I-B, IV-B, VI-B and VII-B of the Periodic Table. Catalysts according to the invention are prepared by forming a slurry of a vanadium component, an antimony component, a hydrophilic bismuth molybdate component having the empirical formula BiMoaOx. Y(H2O) wherein a is 0.5-2, x is selected to satisfy the valence requirements of the bismuth and molybdenum and Y is a number such that the bound water is 5 to 40 weight percent of the total component, and optionally, the compound M and/or a support material, drying the slurry, and calcining to form the catalyst. Such catalysts are specifically useful for production of acrylonitrile from propylene, ammonia and an oxygen-containing gas.
Inventors
- 👤 Jerry R. Ebner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:09
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; B; B01; B01J; B01J23/00; B01J23/002; B01J23/16; B01J23/24; B01J23/31; B01J23/38; B01J23/54; B01J23/66; B01J23/68; B01J23/683; B01J23/686; B01J27/00; B01J27/02; B01J27/057; B01J27/0573; B01J27/0576; B01J27/14; B01J27/186; B01J27/195; B01J27/198; B01J27/199; C07C253/00; C07C253/24; C07C253/26; B01J2523/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A catalyst for oxidation and ammoxidation of hydrocarbons consisting essentially of catalytic elements having the empirical formula BiMo.sub.a V.sub.b Sb.sub.c M.sub.d O.sub.x wherein a is from 0.5 to 2, b is from 0.01 to 0.12, c is from 0.01 to 10, d is from 0 to 0.5, and x is taken to satisfy the valence requirements of the other elements present and wherein M is one or more elements selected from Groups I-A, II-A, III-A, V-A, VI-A, I-B, IV-B, VI-B and VII-B of the Periodic Table, said catalyst being prepared by forming a mixture containing a vanadium component, an antimony component, a hydrophilic bismuth molybdate component having the empirical formula. BiMo.sub.a O.sub.x.Y(H.sub.2 O) wherein a is from 0.5 to 2, x is taken to satisfy the valence requirement of the other elements present and Y is a number such that the bound water is 5 to 40 weight percent of the total component forming said mixture into dry particles, and calcining at a temperature of from 500° to 850° C.
Claim 2
Dependent Claim
170 words
A catalyst for oxidation and ammoxidation of hydrocarbons consisting essentially of catalytic elements having the empirical formula BiMo.sub.a V.sub.b Sb.sub.c M.sub.d O.sub.x wherein a is from 0.5 to 2, b is from 0.01 to 0.12, c is from 0.01 to 10, d is from 0 to 0.5, and x is taken to satisfy the valence requirements of the other elements present and wherein M is one or more elements selected from Groups I-A, II-A, III-A, V-A, VI-A, I-B, IV-B, VI-B and VII-B of the Periodic Table, said catalyst being prepared by forming a mixture containing a vanadium component, an antimony component, a hydrophilic bismuth molybdate component having the empirical formula. BiMo.sub.a O.sub.x.Y(H.sub.2 O) wherein a is from 0.5 to 2, x is taken to satisfy the valence requirement of the other elements present and Y is a number such that the bound water is 5 to 40 weight percent of the total component forming said mixture into dry particles, and calcining at a temperature of from 500° to 850° C.
Claim 3
Dependent Claim
30 words
A catalyst according to claim 1 wherein M is one or more elements selected from potassium, calcium, manganese, boron, thallium, arsenic, phosphorus, selenium, tellurium, silver, titanium, zirconium, tungsten, and antimony.
Claim 4
Dependent Claim
32 words
A catalyst according to claim 2 wherein a is from 0.7 to 1.5, b is from 0.02 to 0.05, c is from 0.1 to 3 and d is from 0 to 0.5.
Claim 5
Dependent Claim
13 words
A catalyst according to claim 2 wherein said mixture is an aqueous slurry.
Claim 6
Dependent Claim
18 words
A catalyst according to claim 4 wherein said bismuth molybdate component is formed prior to forming said slurry.
Claim 7
Dependent Claim
29 words
A catalyst according to claim 4 wherein a support material comprising from about 10 to about 90% of the total weight of said catalyst is added to said slurry.
Claim 8
Dependent Claim
24 words
A catalyst according to claim 6 wherein said support material comprises from about 35 to about 60% of the total weight of said catalyst.
Claim 9
Dependent Claim
12 words
A catalyst according to claim 7 wherein said support material is silica.
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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) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |