|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||A New Era in Smelting Sustainability - Intensification of the Outotec® Ausmelt Top Submerged Lance (TSL) Process for Zinc Production
||Jacob T. Wood, David Wilson, Stephen Hughes
|On-Site Speaker (Planned)
For almost 25 years, the Outotec® Ausmelt Top Submerged Lance (TSL) Process has been applied for the processing of zinc-bearing leach residues, slags, EAF dust and sulphide concentrates. Continual development and evolution of the technology over this period has resulted in a more intense smelting process with higher energy efficiency, lower operating costs and reduced fossil fuel consumption. This paper covers a number of recent technology advances, highlighting their positive impacts on smelter operating costs, CO2 emissions and metal recoveries for treatment of a range of zinc-bearing feed inputs. It also compares the Ausmelt TSL technology against alternatives such as the Waelz kiln, Box Fumer and Chinese Side-Blowing (Chifeng) process, demonstrating a range of advantages and operational flexibility inherent to the Ausmelt process.