About the Quartz

Natural quartz sand mainly includes rock quartz, vein quartz, sandstone quartz, as well as sea sand and river sand.
The core objective is to remove impurities (iron, aluminum, mica, clay, etc.), classify and purify the sand, and ultimately obtain high-purity quartz sand that meets the requirements of industrial sand (such as glass, foundry, photovoltaic, and electronic grade).

Processing Technology

  • Crushing and Screening

    The raw ore is crushed to a suitable grinding size, separating large gravel and waste rock to prevent clogging of subsequent equipment. The particle size of the crushed material is controlled at 5–10 mm, and the screening efficiency is ≥90%.

  • 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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