Vanadium compounds

Claim 1

THE METHOD OF PRODUCING A WATER-DOLUBLE VANADIUM (IV) SALT HAVING AS AN ANION A COMPLEX OF AN OXO-VANADIUM GROUP HAVING THE VANADIUM IN THE TETRAVALENT STATE WITH AN ORGANIC ACID RESIDUE DERIVED FROM AN ORGANIC COMPLEXING ACID SELECTED FROM THE GROUP CONSISTING OF GLYCOLLIC, THIOGLYCOLLIC, LACTIC, HYDRACRYLIC, MALIC, THIOMALIC, OXALIC, SALICYLIC, THIOSALICYLIC, P-AMINO-SALICYLIC, MALONIC, CITRIC AND TATARIC ACIDS WHICH COMPRISES HEATING TO 60-70*C. AN AQUEOUS MEDIUM CONTAINING A LOWER ALIPHATIC CARBOXYLIC ACID OF 2 TO 4 CARBONS, A REDUCING COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMIDE, HYDRAZINE, AND LOWER ALKYL HYDRAZINES IN WHICH MONE OF THE HYDRAZINE NITROGENS IS UNSUBSTITUTED, AND AMMONIUM METAVANADATE, THE SAID ORGANIC ACID ACID AND SAID REDUCING COMPOUND BEING PRESENT IN STOICHIOMETRIC EXCESS, UNTIL EVOLUTION OF NITROGEN HAS SUBSTANTIALLY CEASED AND ADDING TO SAID REACTION MIXTURE, WHILE HOLDING SAID REACTION MIXTURE AT A TEMPERATURE FROM AMBIENT TO 60* C., AT LEAST STOICHIOMETRIC AMOUNTS OF A BASE SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES AND CARBONATES OF ALKALI METAL AND NH4+ CATIONS, WHICH CATIONS BECOME THE CATION OF THE SALT PRODUCED, AND AN ORGANIC COMPLEXING ACID OF THE ABOVE DEFINED GROUP, AND ISOLATING THE SAID WATER-SOLUBLE VANADIUM (IV) SALT.

Claim 2

THE METHOD OF PRODUCING A WATER-DOLUBLE VANADIUM (IV) SALT HAVING AS AN ANION A COMPLEX OF AN OXO-VANADIUM GROUP HAVING THE VANADIUM IN THE TETRAVALENT STATE WITH AN ORGANIC ACID RESIDUE DERIVED FROM AN ORGANIC COMPLEXING ACID SELECTED FROM THE GROUP CONSISTING OF GLYCOLLIC, THIOGLYCOLLIC, LACTIC, HYDRACRYLIC, MALIC, THIOMALIC, OXALIC, SALICYLIC, THIOSALICYLIC, P-AMINO-SALICYLIC, MALONIC, CITRIC AND TATARIC ACIDS WHICH COMPRISES HEATING TO 60-70*C. AN AQUEOUS MEDIUM CONTAINING A LOWER ALIPHATIC CARBOXYLIC ACID OF 2 TO 4 CARBONS, A REDUCING COMPOUND SELECTED FROM THE GROUP CONSISTING OF HYDROXYLAMIDE, HYDRAZINE, AND LOWER ALKYL HYDRAZINES IN WHICH MONE OF THE HYDRAZINE NITROGENS IS UNSUBSTITUTED, AND AMMONIUM METAVANADATE, THE SAID ORGANIC ACID ACID AND SAID REDUCING COMPOUND BEING PRESENT IN STOICHIOMETRIC EXCESS, UNTIL EVOLUTION OF NITROGEN HAS SUBSTANTIALLY CEASED AND ADDING TO SAID REACTION MIXTURE, WHILE HOLDING SAID REACTION MIXTURE AT A TEMPERATURE FROM AMBIENT TO 60* C., AT LEAST STOICHIOMETRIC AMOUNTS OF A BASE SELECTED FROM THE GROUP CONSISTING OF HYDROXIDES AND CARBONATES OF ALKALI METAL AND NH4+ CATIONS, WHICH CATIONS BECOME THE CATION OF THE SALT PRODUCED, AND AN ORGANIC COMPLEXING ACID OF THE ABOVE DEFINED GROUP, AND ISOLATING THE SAID WATER-SOLUBLE VANADIUM (IV) SALT.