High purity quartz sand generally refers to Si0, a quartz powder with a content higher than 99.99%. It is an important raw material for quartz glass and quartz crucibles. Its high-end products are widely used in industries such as large-scale integrated circuits, solar cells, optical fibers, lasers, aerospace, and military. Due to the fact that these industries are related to the long-term development of the country and are a necessary condition for the sustainable development of national high-tech, the strategic position of high-purity quartz sand is very important. The preparation technology of its high-end products is monopolized and restricted by a few countries such as the United States, Germany, and Russia in terms of technology and product exports. The purification and large-scale mining of quartz sand in our country are still in a difficult exploration stage.

High purity quartz sand contains excellent chemical stability, high insulation and voltage resistance, and extremely low coefficient of thermal expansion. It is an indispensable and important raw material for high-tech industries such as electronic core devices, optical communication materials, and solar cells. It is the basic raw material for producing quartz crucibles, manufacturing monocrystalline silicon rod containers, and chips.

Yongxiao Stone Form

Important technical indicators of high-purity quartz sand

1. The appearance is white with no visible mechanical impurities.

2. Purity requirement: The content of silicon dioxide shall not exceed 99.99%.

3. According to the usage in different industries, it can be processed into different specifications and models of series products to meet customer requirements. The reference for other impurity content is as follows: