Over 80% of all steel dust recycling utilizes the Waelz Kiln process. GSDK takes the Waelz Kiln process to the next level using state–of–the–art production technology and the latest chemical and environmental control advancements. It is the most proven, efficient, and environmentally friendly EAF dust disposal or recycling option.
Developed in 1910, the Waelz Kiln is a proven technology for high-temperature metals recovery (HTMR) of EAF waste. The result is more highly concentrated zinc oxides which are used as raw materials for zinc smelters. While many other technologies have been successfully tested for processing steel dust, none have proven as economically feasible as the Waelz Kiln process, which remains the best demonstrated available technology for recycling steel dust.Learn more