METHOD OF RE-COLLECTING VALUABLE ELEMENTS FROM DUST OF ELECTRIC FURNACE WITH LIMESTONE SLUDGE

摘要

PURPOSE: A method of re-collecting valuable elements from dust of an electric furnace with limestone sludge is provided to be economic in re-collecting valuable elements from dust of an electric furnace by applying limestone sludge. CONSTITUTION: Valuable elements are re-collected without reducing re-collecting rate by using limestone sludge to control basicity in processing the dust of an electric furnace. The limestone sludge is recycled and the valuable elements are re-collected from the dust of the electric furnace at a low cost by using the sludge instead of expensive one at the same time.