NOUFERROUS METALLURGICAL EQUIPMENT

The grinding process occupies a core position in mineral processing. It has a significant impact on the surface properties of minerals and the characteristics of the slurry, which in turn further affect the flotation behavior of the minerals. The grinding process not only helps to achieve full monomer dissociation of the minerals, but also has a significant impact on their surface properties, surface roughness, specific surface area, and particle morphology. At the same time, the grinding process also affects the properties of the slurry, such as the pH value, metal ion concentration, dissolved oxygen content, and electrochemical effects in the slurry. These changes directly affect the interaction between minerals and flotation reagents, as well as the separation efficiency. Research shows that factors such as the type of grinding media, the shape of the media, the media ratio, slurry concentration, and mill filling rate can significantly impact the particle size characteristics of the grinding product and flotation performance. In particular, the grinding method (such as dry grinding, wet grinding, or ball milling) affects the physical and chemical properties of the mineral surface differently, thereby influencing the flotation properties of the minerals. This paper reviews the impact of grinding on slurry properties and mineral surface characteristics.