Effects of Additive and Roasting Processes on Nitrogen Removal from Aluminum Dross

Taking high nitrogen aluminum dross as the research object, effects of additives sodium carbonate and cryolite roasting process on denitrification effect were studied. The principle additive was studied by XRD, SEM TG-DSC. experimental results show that can quickly reduce content nitride in dross. optimum parameters also obtained simultaneously. When mass ratio to 0.4, temperature 900 °C, time 3 h, degree could reach 96.19%. 0.8, 1000 4 91.32%. This study provides a reference for non-harmful treatment