Unlocking the Secrets of High Purity Quartz

Q: What is High Purity Quartz, and why is it important?

A: High Purity Quartz (HPQ) refers to quartz raw material with SiO₂ content exceeding 99.99%. It features extremely high purity, an ultra-low thermal expansion coefficient, and excellent thermal stability. HPQ is widely used in semiconductors, photovoltaics, fiber-optic communications, and high-end quartz glass products, earning the reputation of being the “gold of quartz materials.”

Q: Why is grinding indispensable in High Purity Quartz preparation?

A: The grinding process is critical because of:

• Particle size control: Micron or even submicron levels are required to ensure stable material performance.
• Impurity control: Preventing contamination from metal abrasion is a major challenge.
• Surface activation: Grinding increases specific surface area, creating favorable conditions for subsequent acid leaching and flotation purification.

Q: What advantages does Epic Powder offer in HPQ grinding?

A: With over 20 years of experience in ultrafine powder processing, Epic Powder provides a complete set of solutions for high purity quartz:

• Ball mill classification line: Equipped with ceramic liners and high-purity media to minimize impurity introduction.
• Impact mills: Utilize particle-to-particle collisions to avoid metal wear.
• Air classifiers: Precisely control particle size distribution, adaptable to different application needs.
• Surface modification equipment: Enhance dispersion and compatibility of quartz powder in resins, silicone rubber, and other composites.

Q: What are the typical applications of HPQ?

A: Owing to its high purity and outstanding performance, HPQ has become a critical raw material in many high-tech industries:

• Semiconductors: Manufacturing crucibles, diffusion tubes, and other quartz products essential for silicon wafer production.
• Photovoltaics: Used in quartz glass and crucibles for solar-grade monocrystalline silicon production.
• Fiber-optic communications: Super-high purity quartz powder is the foundation of fiber preforms and cores, ensuring high transmission efficiency and low signal loss.
• Advanced displays: Applied in LCD glass and OLED display substrates requiring high transparency.
• Aerospace and new energy: For special high-temperature materials, precision optical components, and next-generation battery materials.

Q: What are the key technical challenges in HPQ preparation?

A: The main challenges lie in achieving high purity while maintaining low contamination. Conventional grinding equipment tends to introduce iron, aluminum, and other impurities, which are extremely detrimental to HPQ. To address this, Epic Powder designs equipment with ceramic, zirconia, and other high-purity wear-resistant materials, combined with fully enclosed operation systems, minimizing external contamination.

Q: Finally, what value does Epic Powder bring to customers?

A: Epic Powder provides not just equipment, but comprehensive solutions. Through specialized grinding systems and process design, it helps customers prepare high-purity quartz powder efficiently and in an environmentally friendly way. The quality is controllable. This empowers high-purity quartz to expand into broader application fields.