Production of aromatic nitriles
Abstract
Abstract A PROCESS FOR THE PRODUCTION OF AROMITIC NITRILES, IN PARTICULAR OF PHITHALONITRILES, FROM SUITABLY ALKYL-SUBSTITUTED AROMATIC HYDROCARBONS BY CATALYTIC OXIDATION WITH OXYGEN OR OXYGEN-CONTAINING GASES IN THE PRESENCE OF AMMONIA AT ELEVATED TEMPERATURE IN THE VAPOR PHASE USING AN ALUMINUM OXIDE CATALYST ACTIVATED BY METAL OXIDE ADDITIVIES AND CONTAINING 2 TO 10% BY WEIGHT VANADIUM (V) OXIDE, 1 TO 10% BY WEIGHT ANTIMONY (III) OXIDE , 0.02 TO 2% BY WEIGHT ALKALI METAL OXIDE AND, IF DESIRED, 0.1 TO 4% BY WEIGHT IRON (III) OXIDE AND OR 1 TO 8% BY WEIGHT TUNGSTEN (VI) OXIDE, THE CATALYST HAVING BEEN OBTAINED BY HEATING ALUMINUM HYDROXIDES OR HYDRATED OXIDES TO TEMPERATES BETWEEN 600 AND 900*C.
Inventors
- 👤 Martin Decker
- 👤 Hanns-Helge Stechl
- 👤 Gert Buerger
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
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