Process for producing pure fused vanadium oxide from ammonium metavanadate

Claim 1

THE METHOD OF PRODUCING FUSED VANADIUM OXIDE OF HIGH PURITY CONTAINING NOT LESS THAN 99.5 PERCENT V2O5 FROM AMMONIUM METAVANADATE IN A CONTINUOUS PROCESS, WHICH COMPRISES CONTINOUSLY FEEDING AMMONIUMMETAVANADATE IN A CONTROLLED QUANTITY INTO A DEAMMONIATING FURNACE, MAINTAINING THE TEMPERATURE IN A DEAMMONIATING FURNACE BETWEEN 400*C. AND 500*C., WHEREBY THE AMMONIA CONTENT OF THE FEED SEPARATES AS GASEOUS AMMONIA FROM VANADIUM PENTOXIDE FORMED AS AN AMMONIA-FREE POWDER, FEEDING SUCH DRY VANADIUM PENTOXIDE POWDER IN A THIN STREAM INTO A FUSION FURNACE AT A CONTROLLED RATE, DIRECTING THE INCOMING POWDER ALING A DECLINING COURSE THROUGH THE FURNACE WHILE SUBJECTED TO A DOWNWARDLY DIRECTED IMPINGING FLAME CONTAINING EXCESS OXYGEN, THEREBY ESTABLISHING TEMPERATURES IN EXCESS OF 500* C. IN THE FRUNACE UNDER OXIDIZING CONDITIONS AND CAPABLE OF CONTINOUSLY MELTING SURFACE PORTIONS OF THE ENTERING FEED STREAM WHICH SHIELD UNDERLYING COOLER COVERED PORTIONS OF SAID FEED, CONTINOUSLY MOVING MOLTEN SURFACE VANADIUM OXIDE DOWN AND AWAY FROM THE INCOMING STREAM AND THE DECLINING COURSE, CONDUCTING THE SEPARATED MOLTEN VANADIUM OXIDE ONTO AHEAT-EXCHANGE SURFACE CAPABLE OF CHILLING SAID OXIDE RAPIDLY SO AS TO FORM A DUST-FREE PRODUCT, AND REMOVING SAID PRODUCT FROM THE HEAT-EXCHANGER SURFACE AFTER CHILLING.

Claim 2

THE METHOD OF PRODUCING FUSED VANADIUM OXIDE OF HIGH PURITY CONTAINING NOT LESS THAN 99.5 PERCENT V2O5 FROM AMMONIUM METAVANADATE IN A CONTINUOUS PROCESS, WHICH COMPRISES CONTINOUSLY FEEDING AMMONIUMMETAVANADATE IN A CONTROLLED QUANTITY INTO A DEAMMONIATING FURNACE, MAINTAINING THE TEMPERATURE IN A DEAMMONIATING FURNACE BETWEEN 400*C. AND 500*C., WHEREBY THE AMMONIA CONTENT OF THE FEED SEPARATES AS GASEOUS AMMONIA FROM VANADIUM PENTOXIDE FORMED AS AN AMMONIA-FREE POWDER, FEEDING SUCH DRY VANADIUM PENTOXIDE POWDER IN A THIN STREAM INTO A FUSION FURNACE AT A CONTROLLED RATE, DIRECTING THE INCOMING POWDER ALING A DECLINING COURSE THROUGH THE FURNACE WHILE SUBJECTED TO A DOWNWARDLY DIRECTED IMPINGING FLAME CONTAINING EXCESS OXYGEN, THEREBY ESTABLISHING TEMPERATURES IN EXCESS OF 500* C. IN THE FRUNACE UNDER OXIDIZING CONDITIONS AND CAPABLE OF CONTINOUSLY MELTING SURFACE PORTIONS OF THE ENTERING FEED STREAM WHICH SHIELD UNDERLYING COOLER COVERED PORTIONS OF SAID FEED, CONTINOUSLY MOVING MOLTEN SURFACE VANADIUM OXIDE DOWN AND AWAY FROM THE INCOMING STREAM AND THE DECLINING COURSE, CONDUCTING THE SEPARATED MOLTEN VANADIUM OXIDE ONTO AHEAT-EXCHANGE SURFACE CAPABLE OF CHILLING SAID OXIDE RAPIDLY SO AS TO FORM A DUST-FREE PRODUCT, AND REMOVING SAID PRODUCT FROM THE HEAT-EXCHANGER SURFACE AFTER CHILLING.