Oxidation-reduction bleaching purification is one of the fine purification techniques for mineral materials. When kaolin, barite powders, and similar materials are used as fillers in ceramics, papermaking, and chemical industries, high requirements are placed on whiteness and brightness. Due to colored impurities, natural mineral raw materials often fail to meet industrial application requirements. Conventional beneficiation methods often fail to meet requirements due to the extremely fine particle size of the minerals and the close coexistence of minerals and impurities.