... is more than1,500,000 tons per year;The Precipitated Calcium Carbonate is more than 300,000 tons per year;The ... Hydroxide Calcium is more than 100,000 tons per year.1 lime stone product index 1)CaCO3 ≥97%,MgO ... ≤0.6%,SiO2 ≤1%,Fe2O3 ≤0.06%2)CaCO3 ≥96%,MgO ≤1.6%,SiO2 ≤1.4%,Fe2O3 ≤0. ... ----40mm,3)40mm----80mm,4)80mm----120mm Lime stone calcium carbonate content96% min take off sulphur