RU96120560A - METHOD FOR PROCESSING SULPHIDE ANTIMONY RAW MATERIAL CONTAINING NOBLE METALS - Google Patents

Claims (3)

1. A method of processing sulfide antimony raw materials containing noble metals, including mixing the feedstock with fluxes, continuously loading the resulting mixture onto the surface of the molten bath, melting with continuous purging of the molten bath with blast to obtain gaseous antimony-containing products, slag and rough antimony collecting precious metals, followed by continuous separation of the slag and the collector of precious metals and the withdrawal of liquid and gaseous smelting products, characterized in that the melt blowdown and are products of fuel combustion, oxygen in the air blast to be supplied to the fuel combustion, is 0,75 - 0,95 of the theoretically required for fuel oxidation to carbon dioxide, hydrogen to water, the amount of air blast supplied to the melt is 800 - 2500 nm ³ / h per 1 m ^{3 of} melt, antimony compounds from gaseous smelting products are isolated by filtration at a temperature above the dew point of sulfuric acid.  2. The method according to claim 1, characterized in that industrial products containing metallic antimony are introduced into the charge, the amount of metallic antimony is 5-10% of the antimony in the charge.  3. The method according to PP. 1 and 2, characterized in that the charge is introduced into the industrial products containing metallic iron, the amount of oxygen in the blast supplied to burn fuel is 0.8 - 0.95 from theoretically necessary for the oxidation of carbon fuel to dioxide, hydrogen to water, and metallic iron loading up to oxide (II).