From waste
to value.
Deha Industry converts electric arc furnace dust (EAFD) from the steel industry into zinc oxide using Waelz technology. Waste is recovered into raw material for industry.
Our Technology
Our Process
Three-stage recovery from furnace dust to zinc oxide.
Waelz Process
EAFD is processed at high temperature in a rotary kiln; zinc is volatilized, settled as dust and filtered.
DetailLeach / Washing
Impurities are removed via double thickening, filter press and water treatment; the product is refined.
DetailClinker
Lead is separated from zinc in the clinker rotary kiln, yielding high-quality zinc oxide.
Detail
The steel industry's waste,
industry's raw material.
By recovering 150,000 tons of furnace dust per year instead of disposing of it, we contribute to the circular economy.
SustainabilityProduction & Value
Zinc Oxide Production
In Waelz oxide form, a high-content raw material for zinc metallurgy and the chemical industry.
Learn moreWaelz Slag
Iron-rich by-product; a secondary raw material for the cement and construction sectors.
Learn moreEAFD Supply Cooperation
Sustainable partnerships with steel producers for furnace-dust supply.
Learn more