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Audalia’s Medcalf Project has two Direct Shipping Ore (DSO) critical minerals products.  The products include:

High Grade Titanium & Vanadium Lump Ore

The production of pig iron in the iron making blast furnace is the most widely used method. It is a large scale industrial reactor that converts iron oxide to usable pig iron using coke and coal as fuel. It is well recognised that one of the main limitations of the furnace life is the wear of the hearth refractories.

There are several measures that can be undertaken to decrease the wear of the hearth refractory linings. A measure that has gained popularity since 1960’s is the addition of titanium bearing materials in the furnace by means of forming scaffolds along the surface of the eroded hearth linings. This scaffold is rich in titanium, has a high melting point and acts as a protection agent to prevent the eroded hearth lining from further damage.

The process of the titanium protection layer formation can be described as follows.

1. Dissolution of titania in slag phase.
2. Reduction of titania in slag phase and dissolution of produced titanium into hot metal phase.
3. Transport of titanium to the damaged refractory linings.
4. Formation of Ti(C, N) particles due to cooling.
5. Deposition of Ti(C, N) on the hearth walls and formation of scaffold.

Medcalf high grade titanium & vanadium lump ore contains 11.0% TiO2, 53.8% Fe2O3 and 0.61% V2O5. The lump ore only requires simple crushing and screening process to produce lump ore with the size of 10 – 60mm.

High Grade Titanium & Vanadium Fine Ore

Medcalf high grade titanium & vanadium fine ore contains 11.0% TiO2, 53.8% Fe2O3 and 0.61% V2O5. The fine ore only requires simple crushing and screening process to produce fine ore with the size of 3 – 10mm.