CPC H01F 1/445 (2013.01) [B22F 1/145 (2022.01); B22F 2301/35 (2013.01); B22F 2304/10 (2013.01); B22F 2304/15 (2013.01)] | 17 Claims |
1. A method of producing a stock solution, comprising:
contacting an acidic solution comprising an acid in a reaction container filled with an excess of a mineral bulk material comprising Fe(III) and optionally Fe(II), wherein the mineral bulk material is in excess with respect to the acid in the acidic solution whereby, theoretically, the acid can fully react with the bulk material;
wherein the acid reacts with the bulk material to form the stock solution comprising dissolved ferric (Fe(III)) and optionally ferrous (Fe(II)) ions; and
separating said stock solution from the mineral bulk material.
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