Abstract
The selective chlorination roasting on the fluidized bed for the elimination ofcopper, zinc and sulfur in the pyrite cinder was carried out in the laboratory scale.
The results obtained were as follows:
(1) Under the preferred roasting conditions of 1.3% Cl2 in air, 900°C and 30mn, the elimination of copper was over 83%. The influence of particle size on the elimination of copper was small.
(2) Zinc and sulfur were successfully eliminated and iron loss was small.
(3) Accordingly, the present method was entirely satisfactory.
