The polycarboxylate dispersant produced by the company is a high charge density, medium and low molecular weight product, which is a typical water-soluble polymer dispersant. By adsorption on the surface of fine solid particles, electrostatic repulsion is formed to achieve the purpose of dispersion. It can improve the mineral processing efficiency to ensure the stability and continuity of the transport powder slurry pumping. It can be used to disperse and stabilize various types of mineral mud with high solid content: calcium carbonate, kaolin, talc, titanium dioxide, lime, gypsum, gold, iron oxide and other minerals and pigments.