High purity quartz -"Giant Panda" in silica

High purity quartz - "Giant Panda" in silicon dioxide

Quartz is one of the most common minerals in nature. It is the scientific name of a group of minerals composed of silica (SiO2). It is widely used in glass, architecture, precious jade and stone decoration and other traditional industries.  Since the 1960s, computer, new materials, new energy and other emerging technologies have put forward higher requirements on the purity of quartz products, and the concept of high purity quartz was born.  

High purity quartz is the national strategic industries and pillar industry development can not be replaced in the process of basic materials, semiconductor chips, solar photovoltaic, optical fiber communication, aerospace, precision optical and special glass, and other high and new technology industry is an indispensable and irreplaceable important functional materials, is really thetime "mineral resources.  In nature, although quartz is widely distributed, high purity quartz is rare.  

What is high purity quartz?  

High purity quartz is high quality quartz that is naturally formed (such as crystal) or purified and processed from a purer quartz material.  Due to the different industries of quartz quality requirements vary, so, up to now, there is no unified high purity quartz quality standard in the world.  Some scholars in Norway and the United States based on the quality requirements of quartz glass used in the semiconductor and photovoltaic industry, that the total content of impurities in quartz is less than 50 parts per million, that is to say, the purity of SiO2 should reach 99.995% or more, to be called high purity quartz.  Some Chinese scholars believe that SiO2 purity of 99.9% or more than 99.99% quartz, is high purity quartz.

Generally speaking, the higher the purity of quartz, the lower the content of impurity elements, the better the quality.  This is because quartz with high purity has better high temperature resistance, corrosion resistance, low thermal expansion, high insulation and transmittance and other characteristics, in order to meet the quality requirements of semiconductor chips, solar photovoltaic, precision optics and other high-tech industries.  

High purity quartz application

Photovoltaic, semiconductor, optical communication, optical, electric light source and other industries and fields is an important field support for the development of strategic emerging industry, is the construction of major projects, improve people's livelihood and important guarantee to consolidate national defense, occupies an important position in national economy construction, high purity quartz is widely used in these industries and fields,  It is the scarce common high value-added mineral resources in these fields.