|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Refractory Corrosion Comparison through a Rotary Drum Furnace Slag Test for the Lead Industry
||Daniela Mancini Fonseca, Alfred Spanring, Felipe Terra Elias, Geraldo Eduardo Gonçalves
|On-Site Speaker (Planned)
||Daniela Mancini Fonseca
The simulation of the operating conditions in lead smelters through a rotary drum furnace test is a very useful method to compare the performance of different refractories. Six refractory grades were submitted to corrosion tests in a rotary drum furnace using six Fe2O3-SiO2-CaO synthetic slags with varying contents of sodium carbonate or anhydrous borax. This study aims to gather information about the relationship between different sodium levels in the slag and the corrosion resistance of bricks used in the lead industry. The rebonded magnesia-chromite grade showed the best overall wear resistance. High sodium content in the slag favored the corrosion of the alumina-chromia brick, while low sodium content lead to higher corrosion of the direct-bonded magnesia-chromite grades due to increased amounts of CaO and SiO2 in the slag. The results obtained in this study can be used to recommend refractory grades based on the slag chemical analysis.