Reactive non-metallic product recovered from dross

摘要

A process for treatment of salt cake or non-metallic products obtained from black dross as herein defined to remove chlorides to below about 3% under conditions whereby the aluminium nitrides within the treated material are concentrated, thereby increasing the net energy value of the treated material to provide reactive non-metallic products. The reactive non-metallic products may be converted into refractory or abrasive articles using low energy input levels.