FIELD: mining industry.
SUBSTANCE: processing consists in leaching ore with aqueous hydrochloric acid followed by purifying manganese chloride solution via neutralization to remove impurities, concentrating solution, synthesis of carnallite, concentrating and separating synthetic carnallite from mother liquor, and recycling mother liquor into carnallite synthesis stage. Part of mother solution, prior to be recycled, is treated with magnesium sulfate to remove calcium compounds.
EFFECT: increased purity of produced carnallite.
6 cl
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Authors
Dates
2005-08-27—Published
2004-02-05—Filed