FIELD: metallurgy.
SUBSTANCE: thermal reduction by heating charge containing reducer and manganese compound is performed at temperature 700-750°C in inert atmosphere. As manganese compound there is used manganese oxide (III) or manganese oxide (IV), or manganese chloride, while as reducer there is used hydride of lithium taken in excess at amount of 25-50 wt %. Also lithium chloride is additionally introduced into charge at ratio of lithium to lithium hydride taken in excess in moles equal to 2:1. Heated charge is conditioned during 30-90 min. Further manganese is extracted out of reaction mixture by means of cooling, flushing with water and filtering.
EFFECT: production of manganese in form of fine crystal powder and reduced expenditures.
7 cl, 4 ex
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Authors
Dates
2010-06-27—Published
2009-05-12—Filed