PROCEDE DE PRODUCTION D'UNE MATIERE VITREUSE CRISTALLISABLE SOUFFLEE ET INSTALLATION POUR LA CONDUITE DU PROCEDE

摘要

A process for producing cement clinkers is disclosed whereby fly ash is added to the lower as well as to the upper end of a rotary kiln containing a firing zone and wherein the fly ash is admixed with calcareous materials in accordance with the desired composition of the product.