FIELD: processing of sulfide ores containing bismuth. SUBSTANCE: origin material is affected by hydrochloric leaching out. The process is carried out with the help of solution of hydrochloric acid having concentration 40-50 g/l till pH of pulp is 0.6-0.8, mass portion of solids in said pulp is 20-25 %. Bismuth is electrolytically precipitated of thus treated solution. After leaching out sludge is affected by sorption cyanation to prepare sorbent being saturated with precious metals. EFFECT: increases degree of extraction of bismuth.
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Authors
Dates
1996-06-27—Published
1993-11-29—Filed