Quartz Sand VS Silica Sand - JXSC Machinery

Quartz sand, which is commonly referred to as silica sand, can be transformed into high-purity quartz sand through beneficiation and purification. This processed form has extensive applications in the glass, ceramics, metallurgy, casting, and refractory materials industries.

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• Silica's primary mineral component is quartz, typically mixed with various impurities like feldspar, mica, clay, and iron.
• Quartz is primarily made of silicon dioxide (SiO2), with high-purity quartz sand containing SiO2 concentrations above 99.9%. This sand is obtained through crushing and purification processes.

To attain high-purity and ultra-high-purity quartz raw materials, it's essential to eliminate all impurities aside from silica. The detrimental impurities often include iron and aluminum compounds. The raw material's purification significantly focuses on the effective removal of iron and aluminum containing impurities.

Understanding Silica Sand

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Silica sand can be categorized into ordinary silica sand, refined silica sand, and high-purity silica sand. Ordinary silica sand contains silica levels between 90% and 99%, with iron oxide contents below 0.02%; the refined type has silica content ranging from 99% to 99.5% and iron oxide under 0.015%. High-purity quartz sand boasts silica percentages from 99.5% to 99.9%, with iron oxide contents below 0.001%.
Higher purity silica sand tends to have a milky white color. In contrast, samples with significant impurities may appear brownish-red or light brown. The melting point of silica sand is approximately #, with particles varying between 0.02mm and 3.35mm. It remains insoluble in all acids except for hydrofluoric acid and features excellent chemical stability, electrical insulation, and wear resistance.
Major glass producers, including nations like the Soviet Union, the USA, and Belgium, predominantly use natural silica sand for their glass products. However, the quality of natural silica sand in China is relatively low, often relying on silica sand sourced from crushed quartz sandstone as raw material for glass production.

Exploring Quartz Sand

Quartz sand is derived from the crushing of quartz stone, a resilient and chemically stable silicate mineral. Generally, its appearance is milky white or transparent, with a Mohs hardness score of 7.
This type of sand serves as a critical industrial mineral raw material and is classified as a non-chemical hazardous substance. It is widely utilized across various sectors, including glass manufacturing, casting, ceramics, fireproof materials, ferrosilicon smelting, metallurgical flux, construction, chemicals, plastics, rubber, abrasives, filtering materials, and more.

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