METHOD FOR PRODUCING CEMENT CLINKER FROM CEMENT KILN WASTE DUST

摘要

METHOD FOR PRODUCING CEMENT CLINKER FROMCEMENT KILN WASTE DUSTABSTRACT OF THE DISCLOSUREA method is disclosed for obtaining useful products fromcement kiln waste dust. The dust is collected and added to anelectric arc furnace where it is melted. The temperaturesrequired to melt the dust are sufficiently high that alkali sul-fates present in the dust are volatilized, leaving a melt whichhas a composition acceptable for the production of cementclinker. The volatilized components are collected to form asecond useful product; i.e., a potassium rich material suitablefor the production of potassium bearing chemicals, such asfertilizers.