C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/72
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.
389235
Lehr Klaus
Schrodter Klaus
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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