PROCESS FOR UPGRADING ASBESTOS TAILINGS

摘要

A process for upgrading a serpentine-containing material is provided. The process includes feeding the serpentine-containing material into a first reactor. The serpentine-containing material is pre-treated in the first reactor to obtain a pre-treated material. The pre-treating includes drying the serpentine-containing material, and removing dust particles from the serpentine-containing material. The process also includes feeding the pre-treated material into a second reactor; and dehydrating and calcining the pre-treated material in the second reactor to obtain a calcined material.