Lime use and functionality in sulphide mineral flotation: A
2019year11month1day · Lime dose and control. Lime is a relatively inexpensive reagent, making it the most frequently used alkali in mineral processing. Based on indicative (2019) bulk reagent prices (excluding logistics costs), the effective mol OH − yield per US dollar of reagent is approximately 200 for CaO, compared to 150, 70 and 50 for MgO, N 2 CO 3