PROCESS FOR RECOVERING OF ALUMINOUS BASED REFRACTORY MATERIAL, FERRIC CHLORIDE AND HYDROCHLORIC ACID

摘要

A leaching process employing acidic chloride solutions, whereby the iron content of aluminous materials such as lower grade iron-containing bauxite ores is reduced, enabling the obtention of valuable products such as metallurgical grade alumina and refractory grade bauxite, previously obtainable only from higher grade low-iron aluminous materials.