Patent US2858457A successfully refreshed from Google Patents.
Patent US3280166A successfully refreshed from Google Patents.
US3280166A
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Process for the oxidation of olefin-ammonia mixtures to unsaturated nitriles
Assignee: Standard Oil Co
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Filing: 1964-08-19
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Granted: 1966-10-18
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 James L Callahan
- 👤 Joseph J Szabo
- 👤 Gertisser Berthold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:06
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/16; B01J23/24; B01J23/28; B01J23/31; B01J23/70; B01J23/76; B01J23/84; B01J23/843; B01J23/8437; B01J23/85; B01J23/88; B01J23/887; B01J23/8876; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19; B01J27/192; C; C01; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/0245; C07; C07C; C07C253/00; C07C253/24; C07C253/26; 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: 2
Claim 1
Independent Claim
155 words
A PROCESS FOR THE OXIDATION OF OPEN-CHAIN MONOOLEFINS TO THE CORRESPONDING UNSATURATED MONONITRILES WHICH COMPRISES THE STEP OF CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 550 TO ABOUT 1000*F. A MIXTURE OF AMMONIA, OLEFIN AND OXYGEN, SAID MIXTURE HAVING A MOLAR RATIO OF OLEFIN TO AMMONIA OF FROM ABOUT 1:0.05 TO 1:5 AND A MOLAR RATIO OF OLEFIN TO OXYGEN OF FROM ABOUT 1:0.5 TO 1:3, THE OLEFIN HAVING FROM ABOUT 3 TO ABOUT 8 CARBON ATOMS, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF OXIDES OF BISMUTH AND OXIDES OF MOLYBDENUM AS THE ESSENTIAL CATALYST INGREDIENTS, THE BISMUTH OXIDE BEING PRESENT IN AN AMOUNT TO FURNISH A BISMUTH TO MOLYBDENUM BI:MO ATOMIC RATIO OF ABOVE 1:3, PROMOTE BY A MIXTURE OF OXIDES OF BARIUM AND SILICON IN THE PROPORTION OF ABOUT 1 TO ABOUT 5% CALCULATED AS BARIUM, AND ABOUT 1 TO ABOUT 10%, CALULATED AS SILICON.
Claim 2
Dependent Claim
155 words
A PROCESS FOR THE OXIDATION OF OPEN-CHAIN MONOOLEFINS TO THE CORRESPONDING UNSATURATED MONONITRILES WHICH COMPRISES THE STEP OF CONTACTING IN THE VAPOR PHASE AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 550 TO ABOUT 1000*F. A MIXTURE OF AMMONIA, OLEFIN AND OXYGEN, SAID MIXTURE HAVING A MOLAR RATIO OF OLEFIN TO AMMONIA OF FROM ABOUT 1:0.05 TO 1:5 AND A MOLAR RATIO OF OLEFIN TO OXYGEN OF FROM ABOUT 1:0.5 TO 1:3, THE OLEFIN HAVING FROM ABOUT 3 TO ABOUT 8 CARBON ATOMS, IN THE PRESENCE OF A CATALYST CONSISTING ESSENTIALLY OF OXIDES OF BISMUTH AND OXIDES OF MOLYBDENUM AS THE ESSENTIAL CATALYST INGREDIENTS, THE BISMUTH OXIDE BEING PRESENT IN AN AMOUNT TO FURNISH A BISMUTH TO MOLYBDENUM BI:MO ATOMIC RATIO OF ABOVE 1:3, PROMOTE BY A MIXTURE OF OXIDES OF BARIUM AND SILICON IN THE PROPORTION OF ABOUT 1 TO ABOUT 5% CALCULATED AS BARIUM, AND ABOUT 1 TO ABOUT 10%, CALULATED AS SILICON.
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |