Effect of ball mill grinding parameters of hydrated lime fine grinding on consumed energy

► Operational grinding parameters have marginal effect on fineness of particle. ► Real surface area enhancement did not occur on the external surfaces, but in the inner surfaces due to lime hydration process conditions. ► The ball mill load and speed are the most important parameters rather than material charged volume. ► The undersize percentages of 297, 53 and 10 μm are quality control checkpoints for the micronized hydrate lime.