METHOD FOR BLAST SMELTING OF SECONDARY COPPER-CONTAINING RAW WITH HIGH CONTENT ON IRON

摘要

Use: non-ferrous metallurgy, recycling of secondary raw materials. Essence: charge is loaded into the shaft furnace, air and water vapor are supplied. Water vapor is fed separately above the tuyere stock in a temperature zone of 773-1023 K. The steam temperature is maintained at 373–523 K, and the flow rate is 400–500 nm3 per 1 ton of iron in the charge. 2 hp f-ly, 1 tab. 1 il.