Process for recovery of v-values from ferrophosphorus

Claim 1

A METHOD OF RECOVERING VANADIUM FROM FERROPHOSPHORUS CONTAINING THE SAME IN A FORM ESSENTIALLY FREE OF CHEMICALLY COMBINED OXYGEN WHICH COMPRISES SUBDIVIDING SAID FERROPHOSPHORUS TO PRODUCE A MATERIAL HAVING A PARTICLE SIZE OF FROM 14 TO 400 MESH, MIXING THE THUS DIVIDED FERROPHOSPHORUS WITH FROM 50% TO 125% BY WEIGHT SODIUM CHLORIDE, HEATING THE MIXTURE IN THE PRESENCE OF AN AMOUNT OF OXYGEN AT LEAST 10% IN EXCESS OF THAT THEORETICALLY REQUIRED TO RESULT IN THE VANADIUM THEREIN BEING TRANSFORMED INTO SODIUM METAVANADATE AND IN THE PRESENCE OF SUFFICIENT WATER VAPOR TO RESULT IN THE CHLORINE RELEASED AS A RESULT OF THE REACTION OF SAID SODIUM CHLORIDE BEING TRANSFORMED INTO HCL, SAID HEATING BEING CONDUCTED AT A TEMPERATURE OF AT LEAST 400*C. BUT BELOW THE MELTING POINT OF SAID FERROPHOSPHORUS AND IN THE PRESENCE OF A SOLID INERT DILUENT HAVING AMELTING POINT ABOVE THE MAXIMUM TEMPERATURE AT WHICH SAID HEATING IS CONDUCTED, SAID INERT DILUENT BEING PRESENT IN AN AMOUNT FROM ABOUT 10% TO 500% OF THE WEIGHT OF SAID FERROPHOSPHORUS, COOLING THE RESULTING OXIDIZED MIXTURE AND THEREAFTER EXTRACTING SAID MIXTURE WITH AN AMOUNT OF WATER SUCH THAT A SOLUTION CONTAINING FROM ABOUT 4% TO 7% BY WEIGHT, CALCULATED AS V2O5, OF SODIUM METAVANADATE IS PRODUCED.

Claim 2

A METHOD OF RECOVERING VANADIUM FROM FERROPHOSPHORUS CONTAINING THE SAME IN A FORM ESSENTIALLY FREE OF CHEMICALLY COMBINED OXYGEN WHICH COMPRISES SUBDIVIDING SAID FERROPHOSPHORUS TO PRODUCE A MATERIAL HAVING A PARTICLE SIZE OF FROM 14 TO 400 MESH, MIXING THE THUS DIVIDED FERROPHOSPHORUS WITH FROM 50% TO 125% BY WEIGHT SODIUM CHLORIDE, HEATING THE MIXTURE IN THE PRESENCE OF AN AMOUNT OF OXYGEN AT LEAST 10% IN EXCESS OF THAT THEORETICALLY REQUIRED TO RESULT IN THE VANADIUM THEREIN BEING TRANSFORMED INTO SODIUM METAVANADATE AND IN THE PRESENCE OF SUFFICIENT WATER VAPOR TO RESULT IN THE CHLORINE RELEASED AS A RESULT OF THE REACTION OF SAID SODIUM CHLORIDE BEING TRANSFORMED INTO HCL, SAID HEATING BEING CONDUCTED AT A TEMPERATURE OF AT LEAST 400*C. BUT BELOW THE MELTING POINT OF SAID FERROPHOSPHORUS AND IN THE PRESENCE OF A SOLID INERT DILUENT HAVING AMELTING POINT ABOVE THE MAXIMUM TEMPERATURE AT WHICH SAID HEATING IS CONDUCTED, SAID INERT DILUENT BEING PRESENT IN AN AMOUNT FROM ABOUT 10% TO 500% OF THE WEIGHT OF SAID FERROPHOSPHORUS, COOLING THE RESULTING OXIDIZED MIXTURE AND THEREAFTER EXTRACTING SAID MIXTURE WITH AN AMOUNT OF WATER SUCH THAT A SOLUTION CONTAINING FROM ABOUT 4% TO 7% BY WEIGHT, CALCULATED AS V2O5, OF SODIUM METAVANADATE IS PRODUCED.