METHOD OF PRODUCING SILVER FROM ITS CHLORIDE Russian patent published in 1999 - IPC

Abstract RU 2130504 C1

FIELD: pyrometallurgy, in particular, recovery of noble metals from their semiproducts. SUBSTANCE: method is characterized by the fact that reaction volume (furnace bath) is formed with the help of refreshable slag based on melt of sodium carbonate, then silver chloride is charged and smelting is carried out in the presence of carbonic reducing agent under ore-thermal conditions at temperature of 950-1150 C. Formed silver is withdrawn from furnace bottom together with a part of slag. Then a new portion of sodium carbonate and a new portion of silver chloride are charged into melt. EFFECT: improved process intensification and higher degree of silver recovery.

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RU 2 130 504 C1

Authors

Dubinin N.A.

Digonskij S.V.

Ten V.V.

Timofeev V.N.

Kravtsov E.D.

Dates

1999-05-20Published

1998-02-16Filed