Procedure and installation for the calcination of sulfurated metallic minerals (Machine-translation by Google Translate, not legally binding)

摘要

Procedure and installation for the calcination of sulfur-containing metalliferous minerals, characterized by the fact that the ore is loaded in two or more of the upper floors of the kiln and the calcination gas is derived from the upper floor or from all the loading floors, returning a cooled part of the calcination gases to the lower loading floors and to the floors possibly present between the loading floors, on which no mineral is loaded. (Machine-translation by Google Translate, not legally binding)