Effects of Sodium Carbonate and Calcium Oxide on Roasting Denitrification of Recycled Aluminum Dross with High Nitrogen Content

Aluminum dross is solid waste produced by the aluminum industry. It has certain toxicity and needs to be treated innocuously. The effect of sodium carbonate calcium oxide on denitrification efficiency high nitrogen roasting was studied in this paper. By means XRD, SEM other characterization methods, optimum technological parameters for calcination two additives were explored. test results show that both can effectively improve denitrification, better. When mass ratio 0.6, temperature 1000 °C time 4 h, rate reach 91.32%.