Process for reducing iron in phosphoric acid solution

C - Chemistry – Metallurgy – 01 – B

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C01B 25/238 (2006.01) C22B 60/02 (2006.01)

Patent

CA 1171636

PROCESS FOR REDUCING IRON IN PHOSPHORIC ACID SOLUTION ABSTRACT OF THE DISCLOSURE: Iron contained in phosphoric acid solution is reduced from the trivalent to the bivalent oxidation stage. To this end, red phosphorus is used as the reductant and the reduction is effected in the presence of copper.

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