Process for the preparation of a vanadium-containing metallic ash concentrate

Claim 1

A process for producing a particulate vanadium-containing low density metallic ash concentrate which comprises: partially gasifying coke comprising metallic components, including vanadium components, at a temperature ranging from about 1600° F. to about 2000° F. in the presence of steam and an oxygen-containing gas and heating the resulting partially gasified coke comprising said metallic components at a temperature below the fusion point of said metallic components, said temperature below the fusion point being a temperature not greater than about 1050° F., in the presence of a molecular oxygen-containing gas, for a time sufficient to burn at least a portion of the coke therefrom, and to produce a particulate vanadium-containing low-density metallic ash concentrate, at least 50% of the particles of said concentrate having a diameter not greater than about 1 micron.