A method and system of extracting iron oxide from ore is provided, which may include adding a chelating agent to an iron ore to form an iron ore and chelating agent solution, heating the solution to reflux in water, and filtering the solution to yield an extraction residue and a chelated iron solution. The chelated iron solution may be treated with a potassium hydroxide and water solution to yield iron hydroxide.

The present invention relates to a metal material production configuration (1) and to a method of direct reduction of a metal oxide material (5) holding a first thermal energy into a reduced metal material (16). The method comprises the steps of charging the metal oxide material (5) holding the first thermal energy into a direct reduction facility (7) via a metal oxide material charging inlet device (A), introducing a pre-heated hydrogen containing reducing agent (H), holding a second thermal energy, into the direct reduction facility (7) via a reducing agent inlet device (B).

The metal oxide material (5) id direct reduced by using the first thermal energy of the metal oxide material (5) to heat or further heat the introduced pre-heated hydrogen containing reducing agent (H) for providing a chemical reaction between the introduced pre-heated hydrogen containing reducing agent (H) and the metal oxide material (5); exposing the reduced metal material to a required heat treatment temperature for providing heat treatment of the reduced metal material to obtain a densified reduced metal material; and upholding the required heat treatment temperature by the introduction of the pre-heated hydrogen containing reducing agent (H) by means of a heat treatment providing device (17).