PREPARING METHOD OF VANADIUM FLAKE FROM VANADIUM BUTOXIDE, AND VANADIUM BRIQUETTE

摘要

A vanadium flake and the vanadium ore briquette manufactured from the still-birth vanadium are provided to efficiently add the vanadium alloy steel while manufacture vanadium. As a vanadium flake manufactured from the vanadium oxide, 4 vanadium oxide is put into acid or the base solution, an impurity included in the still-birth vanadium is leached. The filtered material filtering and is obtained is dried. This dry cake is fused in 700 ~ 1,000‹C and is manufactured, pulp density of the acid including 4 vanadium oxide or the base solution characterizes to be 5~30%. In the group which acid is comprised of nitric acid, and the hydrochloric acid and sulfuric acid, it is selected at least, and concentration of acid characterizes to be 0.1~4.0N.