Patent US5344144A successfully refreshed from Google Patents.
Patent US3799888A successfully refreshed from Google Patents.
US3799888A
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Method of preparing a catalyst of vanadium-titanium oxides for vaporphase oxidation and oxidizing ammonolysis of aromatic and heterocyclic compounds
Assignee: Individual
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Filing: 1970-10-28
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Granted: 1974-03-26
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Expires: 1990-10-28
Abstract
Abstract A METHOD OF PREPARING A CATALYST OF VANADIUM-TITANIUM OXIDES FOR VAPOR-PHASE OXIDATION AND OXIDIZING AMMONOLYSIS OF AROMATIC AND HETEROCYCLIC COMPOUNDS COMPRISING PREPARING A POWDERY MIXTURE OF VANADIUM PENTOXIDE AND TITANIUM DIOXIDE WITH THE MOLE RATIO OF 1:0.6-32, RESPECTIVELY. THE AFORESAID MIXTURE IS PRESSES INTO TABLETS AND THEN EXPOSED TO HEAT TREATMENT IN AIR AT A TEMPERATURE OF FROM 650* C. TO 1000* C. SAID METHOD IS TECHNOLOGICALLY SIMPLE AND MAKES IT POSSIBLE TO OBTAIN A CATALYST FEATURING HIGH ACTIVITY AND SELECTIVELY AS WELL AS HIGH MECHANICAL STRENGTH AND THERMAL STABILITY.
Inventors
- 👤 D Sembaev
- 👤 I Kolodina
- 👤 A Loiko
- 👤 B Suvorov
- 👤 A Kagarlitsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:49
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/04; C07D221/06; C07D221/14; B; B01; B01J; B01J21/00; B01J21/06; B01J21/063; B01J23/00; B01J23/16; B01J23/20; B01J23/22; B01J23/24; B01J37/00; B01J37/0009; C07C; C07C253/00; C07C253/24; C07C253/28; C07C51/00; C07C51/16; C07C51/21; C07C51/255; C07C51/265; C07C51/31; C07C51/313; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D209/56; C07D209/58; C07D209/62; C07D209/66; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/84; B01J23/28; B01J23/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |