Molecular Formula | Na2O9Si3Zr |
Molar Mass | 365.45 |
application | sodium zirconium silicate (Na2ZrSi3O9) is an important chemical product, which can be used for pounding materials in the melting part, clarification part and kiln wall of glass kilns, as well as tanning agents in the leather making field and as chemical raw materials for optical glass. |
preparation | a kind of sodium zirconium silicate powder with high purity and low impurity content, and the preparation method of the sodium zirconium silicate powder with simple operation, so as to meet the high quality requirements of sodium zirconium silicate powder in various fields. Taking silica with purity ≥ 99.5%, zirconium dioxide with purity ≥ 99.99%, and sodium silicate with purity ≥ 99.5% as raw materials, the molar ratio of the raw materials is silica: zirconium dioxide: sodium silicate = 2:1:1, the raw materials are ball-milled with a ball mill, and the material of the ball-milled tank is zirconium dioxide material. The raw materials are put into a ball milling tank, and zirconium dioxide grinding balls and deionized water are put into the ball milling to obtain the slurry, wherein the volume ratio of the raw materials to the deionized water is 1:1-1:2, the rotating speed of the ball milling tank is 50-80rpm, and the ball milling time is 24-30h; After the slurry is separated by a centrifuge, the separated solid is calcined in a high-temperature furnace at a heat treatment temperature of 1400-1500 ℃, the calcination time is 5-8h to obtain sodium zirconium silicate (Na2ZrSi3O9) powder. |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |