METHOD FOR PROCESSING TIN-CONTAINING SLAGS Russian patent published in 1998 - IPC

Abstract RU 2115749 C1

FIELD: methods for recovery of tin, lead, bismuth, zinc and some other nonferrous metals from slag formed in melting of tin concentrates and other tin-containing raw materials. SUBSTANCE: method includes adding to ground tin-containing slags alongside with sulfidizing agent and coal of calcium chloride in the amount of 1.5-2.1 kg per kg of tin contained in slag. Sublimation of tin and its associated elements is effected by chlorine sublimation annealing of mixture at temperature of 800-900 C in reducing atmosphere. EFFECT: reduced consumption of energy and excluded pollution of environment.

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RU 2 115 749 C1

Authors

Derljukova L.E.

Dugel'Nyj A.P.

Evdokimov V.I.

Zjuz'Kov E.I.

Korjukov Ju.S.

Ustinov V.V.

Jatskovskij A.M.

Dates

1998-07-20Published

1997-06-24Filed