Chinese name: 硅酸锆

English name: zirconium silicate

English alias: Silicic acid, zirconium (4+) salt (1: 1); ZIRCONIUM SILICATE, 99%

Chemical formula: ZrSiO₄

Category: inorganic salt-silicate-silicone salt

Color: off-white

Status: Powder status

Solubility: insoluble in water

nature:

       It has a high refractive index of 1.93-2.01 and chemical stability. It is a high-quality and inexpensive opacifying agent. It is widely used in the production of various building ceramics, sanitary ceramics, daily-use ceramics, first-class crafts ceramics, etc. In the processing and production of glaze, it has a wide range of applications and a large amount of application. The reason why zirconium silicate is widely used in ceramic production is also because of its good chemical stability, so it is not affected by the firing atmosphere of the ceramic, and can significantly improve the ceramic glaze bonding performance and increase the hardness of the ceramic glaze. Zirconium silicate has also been further applied in the production of color picture tubes in the television industry, emulsified glass in the glass industry, and enamel glazes. Zirconium silicate has a high melting point: 2500 degrees Celsius, so it is also widely used in refractory materials, glass zirconium ramming materials, casting materials, spray coatings.

       When the high-performance zirconium silicate has both whitening and stability conditions, it has better performance in zirconium silicate powder, particle morphology, particle size range, dispersion in the medium, and opacification segregation after application of brick or glaze. Conventional zirconium silicate.

       The whitening effect of zirconium silicate is that it forms oblique zircon after firing ceramics, etc., and thus scatters incident light waves. This scattering is generally called large particle scattering or MieScattering. Combining theoretical calculations and actual powder production conditions, controlling the d50 value of high-performance zirconium silicate below 1.4um and d90 below 4.0um (based on the measurement value of laser particle analyzer made in Japan) will produce the best Opaque whitening effect. In the whitening effect of zirconium silicate, the concentrated particle size range is very important, and it is required to achieve as narrow a particle distribution as possible during the grinding process of zirconium silicate.

Industrial applications:

1. Ceramic industry: Used as an opacifying agent for various types of ceramic glazes. Export coffee cups; sanitary ceramics; wall and floor tiles; tiles and building tiles; coarse ceramic ware; tableware; special porcelain.

2. Plastic industry: Used in epoxy resin formulation, sealing resin, silicone, vinyl resin and resin filling materials to increase heat resistance and increase the insulation value of resistance, used for the need for inertness, fineness, whiteness and energy Chemical resistant filler.

3. Refractory materials: cast zirconium refractories for glass melting furnaces; heat-resistant porcelain; sand blasting for refractory casting; sand blasting for refractory boards; special refractory porcelain; refractory cement