High Purity: Contains an extremely high level of SiO2 with extremely low levels of impurities, such as Fe2O3, Al2O3, and other metal oxides, all strictly controlled at minimal levels.

2. High hardness: Quartz is a mineral known for its high hardness, and high-purity quartz powder inherits this characteristic, providing excellent wear resistance during use.

3. Chemical Stability: High purity quartz powder boasts excellent chemical stability, insoluble in acids (except forqing)Hydrofluoric Acid(externally), slightly soluble in KOH solution, and resistant to erosion by various chemicals.

4. High thermal stability: High purity quartz powder boasts a high melting point (about 1650°C) and excellent thermal stability, maintaining its performance integrity under high-temperature conditions.

5. Insulation: High-purity quartz powder exhibits excellent insulation properties, making it one of the key insulation materials in the electronics industry.

The preparation of high-purity quartz powder primarily involves two methods: physical methods and chemical synthesis.

6. Physical Method: Also known as mechanical crushing, it uses natural crystal as raw material and is produced through processes such as crushing, magnetic separation, flotation, acid leaching, drying, roasting, and magnetic separation. Although this method has a simple process, it is prone to introduce impurities, has high energy consumption and cost, and it is difficult to control the characteristics of the powdered material.

7. Chemical Synthesis Method: Including gas phase synthesis and liquid phase synthesis. This method allows for more precise control over product purity and particle size distribution, and has become a significant development trend for producing high-purity quartz powder in recent years.

Application Fields

1. Glass Industry: High-purity quartz powder is an essential raw material for producing high-grade glass, such as optical glass, conductive glass, and radiation-proof special glass.

2. Electronic Industry: In the electronic industry, high-purity quartz powder is used as raw material for high-purity silicon, optical fibers for communication, etc. Its excellent insulation properties also make it an indispensable insulation material in electronic devices.

3. Ceramics and Refractory Materials: High-purity quartz powder is used for producing ceramic blanks and glazes, as well as refractory materials such as high-silica bricks and ordinary silica bricks for kilns.

4. Mechanical Industry: In the mechanical industry, high-purity quartz powder is primarily used as the main raw material for mold-making sand and as abrasive material (such as sandblasting, sandpaper, abrasive cloth, etc.).

5. Rubber and Plastic Industry: High-purity quartz powder can be used as a filler for rubber and plastic, enhancing their wear resistance.

6. Semiconductor Industry: High-purity quartz powder is also an important raw material in the semiconductor industry, used in the manufacturing of silicon wafers and other critical components.