Direct processing of ferrotitania ores and sands
AssigneeCardero Resource Corporation
InventorGlenn E. Hoffman
Life of this patent
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Abstract
A method for producing pig iron by direct processing of ferrotitania sands, by the steps of: (a) mixing carbonaceous reductant, a fluxing agent, and a binder with titanium-containing materials selected from iron sands, metallic oxides, and/or iron ore concentrates, to form a mixture; (b) forming agglomerates from the mixture (c) introducing the agglomerates to a melting furnace; (d) melting the agglomerates at a temperature of from 1500 to 1760 C and forming hot metal with a slag thereon; (e) removing the slag; (f) tapping the hot metal; and (g) recovering the titanium and vanadium values.
Claims31
A process for producing pig iron by direct processing of ferrotitania ores and sands, comprising the steps of:
- (a) mixing:
- I. materials selected from the group comprising:
- titania-containing iron sands, metallic oxides, and/or iron ore concentrates;
- ii. carbonaceous reductant;
- iii. fluxing agent;
- and
- iv. a binder to form a mixture;
- (b) forming agglomerates from said mixture;
- (c) introducing said agglomerates to a melting furnace;
- (d) melting the agglomerates at a temperature of from 1500 to 1760C and forming hot titanium-containing metal with a slag thereon;
- (e) removing the slag;
- (f) tapping the hot metal;
- (g) treating the tapped hot metal by oxidation to form TiO2, and to form V2O5 when vanadium values are present therein;
- (h) recovering V2O5 and TiO2 by quenching and grinding the tapped metal, then separating the V2O5 and TiO2 by high intensity electrostatic separation;
- and
- (i) recovering the titanium values.
A process for producing pig iron by direct processing of ferrotitania ores and sands, comprising the steps of:
- (a) mixing:
- I. materials selected from the group comprising:
- titania-containing, iron sands, metallic oxides, and/or iron ore concentrates;
- ii. carbonaceous reductant;
- iii. fluxing agent;
- and
- iv. a binder to forma mixture;
- (b) forming agglomerates from said mixture;
- (c) introducing said agglomerates to a melting furnace;
- (d) melting the agglomerates at a temperature of from 1500 to 1760 C and forming hot metal with a titanium-containing slag thereon;
- (e) removing the slag;
- (f) recovering MnO, Cr2O5, V2O5 and TiO2 by quenching and grinding the tapped slag, then separating the MnO, Cr2O5, V2O5 and TiO2 by high intensity electrostatic separation and producing a concentrate that can be recycled to the melting furnace;
- (g) tapping the hot metal as pig iron, and
- (h) recovering the titanium values.
Dependencies are inferred from the claim text.