FIELD: metallurgy.
SUBSTANCE: procedure consists in preparing charge by mixing concentrate with carbon at weight ratio 1:(0.2-0.25) and with fluxing additives. Also mixture of sodium carbonate and sodium chloride are used as fluxing additives at weight ratio of concentrate: carbon: sodium chloride: sodium carbonate equal to 1:(0.2-0.25):(0.12-0.15):(0.12-0.15). Reduction melting of produced charge is performed at temperature 850-870°C during 1.5 hours.
EFFECT: reduced temperature of melting at sufficiently complete extraction of tin out of concentrate.
2 ex
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