Rare earth residue developed rare earth pigment and glaze powder

Ceramic pigments and glazes are essential raw materials for building sanitary ceramics. China’s ceramic glazes use zirconium as the main emulsion brightener, which not only consumes huge amounts of extra imported zircon sand each year, but also the radioactive radioactive germanium elements associated with zirconium ore. , Become a major hidden danger in environmental protection. Sichuan is rich in rare earth resources. With the continuous increase of rare earth production, a large amount of generated rare earth wastes, if not fully utilized, will also cause serious pollution to the environment. Chengdu Ryder High-tech Research Institute and Sichuan Geology and Minerals Science and Technology Development Center have successfully developed rare earth pigments and rare earth glaze powders by using rare earth wastes. They can not only replace the zircon sand, zinc oxide, borax, soda ash and other raw materials necessary for the production of ceramics, but also shorten the firing time, increase the yield and quality, and have no pollution.