SYSTEMS AND METHODS FOR REMOVAL OF LEAD AND/OR OTHER CONTAMINANTS FROM LIMESTONE AND RESULTANT CALCIUM OXIDE AND HYDRATED LIME

摘要

Systems and methods for impurity removal to limestone using modifications to the typical calcination process of turning calcium carbonate into calcium oxide. Specifically, substantially increasing the temperature to 1100° C. or higher and increasing soak time can result in reductions in certain undesirable impurities, particularly with regards to lead and lead compounds.