Treatment process of waste slag of Aluminum to produce an aggregate Light High Alumina

摘要

A process for treating Waste slag of Aluminum (PNM) to produce a Light High Alumina added,With Aluminum Nitride (ALN) and / or free Aluminum (al) and / or Aluminium Chloride (AlCl3) with a particle size of between 0,3y 300 microns, i.e.That describes a Lightweight Fine aggregate to produce high alumina.The process is characterized in that the PNM is FED in a Rotary Kiln is sealed and heated to a temperature between 2000 and 4000 F while feeds Oxygen or a mixture of oxygen and WaterThe oven with less than about 20% of the total Energy of combustion to heat the PNM between 2000 and 4000 F supplied from an external Source.The process does not require prior Agglomeration of Fine.