About the Quartz

Natural quartz sand primarily consists of rock quartz, vein quartz, sandstone quartz, as well as sea and river sand. The main goal is to remove impurities such as iron, aluminum, mica, and clay, while classifying and purifying the sand to produce high-purity quartz sand that meets the stringent standards required for industrial applications, including glass manufacturing, foundries, photovoltaics, and electronics.

Processing Technology

  • Crushing and Screening

    • The raw ore is crushed to an optimal size of 5–10 mm, effectively separating large gravel and waste rock to prevent clogging of downstream equipment. This process achieves a screening efficiency of 90% or higher.
  • Grinding and Classification

    • Grinding quartz particles to the target fineness (e.g., 20 mesh, 100 mesh) allows the quartz to be fully separated from encapsulated impurities (e.g., iron oxides, mica), laying the foundation for subsequent purification.
  • Purification

    • Scrubbing and desliming (removing clay and mud-like inclusions)
    • Classification and desliming (separating fine mud impurities)
    • Magnetic separation for iron removal (removing magnetic impurities)
    • Flotation (removing non-magnetic impurities such as mica and feldspar)
    • Chemical purification, using a mixture of hydrochloric acid, sulfuric acid, and hydrofluoric acid to soak the ore pulp and dissolve residual iron and aluminum oxides.
  • Concentration and Dehydration

    • Concentration and Dehydration to Obtain Solid Concentrate.
    • The purified slurry is concentrated by a thickener, dewatered by a filter press, dried by a dryer, and finally classified by a vibrating screen to select finished products of different specifications (such as coarse sand, medium sand, and fine sand) according to particle size requirements.

Processing Plant Construction Workflow

Services

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