ZIRCON AND ZIRCONIA RECOVERY FROM PRECISION CASTING WASTE MOLD

摘要

The invention relates the recovery of zircon and zirconia from the wax casting mold sand that is used for casting Bronze, Brass, Cobalt alloys, 4140 steel and stainless steel as precision casting in industry, become solid waste after completing its lifetime as a result of particular use and has no mold feature. The aim of the invention is to recover zircon and zirconia (ZrO₂), a valuable mineral, from a waste material whose amount is increasing day by day, to provide economic gain and contribute to nature.