Zirconium Silicate
Zirconium silicate is widely used in the production of building ceramic, sanitary ceramic, daily ceramic and first-class handicraft ceramic.
Description of Zirconium Silicate:
Zirconium silicate is a non-toxic, odorless white or off-white powder. The raw material is natural high-purity zircon sand concentrate, which is then processed through superfine grinding, iron removal, titanium processing, and surface modification treatment.
Zirconium silicate has a high refractive index of 1.93-2.01 and stable chemical performance. It is a high quality and low price opacifier for opacification. It is widely used in the production of various building ceramics, sanitary ceramics, daily ceramics and first-class handicraft ceramics. Zirconium silicate has been widely used in ceramic production because of its good chemical stability, so it is not affected by the burning atmosphere of ceramic, and can improve the binding performance of ceramic glaze significantly and improve the hardness of ceramic glaze. Zirconium silicate has been further applied in the production of color picture tube, emulsified glass and enamel glaze in the glass industry.
Technique Data of Zirconium Silicate:
1. Physical properties of Zirconium Silicate
| Specific Gravity | 4.69 |
| Melting Point | 2500°C |
| Refractive Index | 1.97 |
| Mohs Hardness | 7.5 |
| Thermal Expansion Coefficient | 4.2*10-6 |
| Apprearance | White or off white powder |
2. Chemical properties of Zirconium Silicate
| Item | RS65 | RS64.5 | RS63.5 |
| ZrO2+HfO2 | 65.0 min | 64.5 min | 63.5 min |
| Fe2O3 | 0. 06 max | 0. 08 max | 0. 12 max |
| Ti02 | 0.10 max | 0.12 max | 0.18 max |
3. Product standard of Zirconium Silicate
| Type | Average mesh | Application |
| RS-1.0 | D50≤1.0um | High-grade sanitary porcelain
High-grade daily-use porcelain High-grade crystal brick |
| RS-1.2 | D50≤1.2um | |
| RS-1.5 | D50≤1.5um | Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc. |
| RS-2.0 | D50≤2.0um |
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