Method for obtaining elemental sulphur from pyrite or pyrite concentrates

摘要

A method of obtaining elemental sulfur from pyrites or concentrates of pyrite treating the raw material with non-oxidizing gases at a high temperature such that the elemental sulfur is separated from the raw material, wherein the heating is performed while the raw material is in a suspended state in the heating gas, and the suspension flow is primarily descending and the heating is sufficient to enable obtaining the remaining sulfur where the sulfur is separated, in the molten state, and because sulfur separately and molten sulfur is both recovered.