method for increasing the throughput during the calcination process by chlorination roasting of pyrites residue and similar materials

摘要

Calcination is in a rotary tier or tubular furnace. When the S content is not enough for the decomposition reaction, the quantity of S in the form of sulphuric acid necessary for sulphating is added, in place of the sulphidic s carrier usually used. The addition is entire or partial, before or during the reaction.