
What is the purpose of pickling white corundum powder?
What is the purpose of pickling white corundum powder? Removing metal impurities During the pulverization process (e.g., roller grinding), metal impurities such as iron, nickel, and chromium may be introduced due to equipment wear, or small amounts of metal oxides (such as Fe₂O₃) may remain in the raw material. Pickling typically uses acidic solutions such




