FIELD: mining industry. SUBSTANCE: invention relates to pyrometallurgy of lead, in particular to integrated concentration processes and can be used when preparing difficult for concentration oxidized and mixed lead ores for flotation. In an oxidized lead ore processing including sulfidizing firing of oxidized lead ore with sulfidizing agent, firing is performed in water steam atmosphere at furnace temperature 773- 873K, whereas sulfidizing agent utilized is subquality pyrite concentrate with at least 40% sulfur level. EFFECT: enabled involvement of difficult for concentration oxidized sulfide ores, lowered firing temperature, increased degree of sulfidizing, and reduced cost of sulfidizer. 2 cl, 3 ex
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Authors
Dates
2002-02-20—Published
1999-08-18—Filed