MANGANESE-BEARING RAW MATERIAL PROCESSING METHOD Russian patent published in 2004 - IPC

Abstract RU 2223340 C1

FIELD: nonferrous metallurgy. SUBSTANCE: manganese-bearing material is leached with 70-98% sulfuric acid in presence of sulfite ion- containing reduction solution to give pulp, which is separated and separated solution is further processed. Amount of sulfuric acid corresponds to 77-95% based on amount stoichiometrically required for binding manganese into sulfate. Sulfite ion-containing solution is, more specifically, 20-40% potassium bisulfite solution with pH 5.2-6.0. EFFECT: simplified processing operation, reduced consumption of sulfuric acid, and improved quality of manganese concentrate. 1 tbl, 3 ex

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RU 2 223 340 C1

Authors

Nosenkov A.N.

Trunev S.V.

Dmitrevskij B.A.

Treushchenko N.N.

Dates

2004-02-10—Published

2002-05-06—Filed