Extraction of high-grade zinc oxide product comprises pneumatic injection of foreign elements e.g. iron and zinc containing dust with carbon into a molten iron bath

摘要

Extraction of high-grade zinc oxide product comprises pneumatic injection of foreign elements e.g. iron and zinc containing dust (e.g. production residue) with carbon into a molten iron bath, where the dust is injected into the iron melt through the pneumatic dense current by an immersed, refractory sheath lance.