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Sillimanite Flour

Other name: Kyanite concentrate, OR Grade Sillimanite, Q Grade Sillimanite, Orissa Sillimanite, Chavara Sillimanite, Sillimante Powder
Colour and appearance: cream colour, off white colour, greyish white colour


  1. Sillimanite is used in manufacturing refractories.
  2. Sillimanite is used in manufacturing Kiln Furniture
  3. Sillimanite powder is used to manufacture foundry paints
  4. Sillimanite is used in primary and secondary coating in investment casting
  5. Sillimanite is used in manufacturing of high-alumina refractories
  6. Sillimanite is also used in metal, glass, ceramic and cement industries

About Sillimanite:

We Vstake Solution Pvt. Ltd are Manufacturers, Suppliers, Provider, Wholesaler, Trader, Dealer, Exporters of Sillimanite Flour.

Introduction to Andalusite, Kyanite, and Sillimanite:
  • Andalusite, Kyanite, and Sillimanite are structural polymorphs of Al2SiO5, all belonging to the sillimanite group of minerals.
  • India is a dominant supplier of high-quality sillimanite globally.
  1. Thermal Characteristics:
    • Decomposition begins at 1100°C.
    • Complete decomposition occurs at 1410°C.
    • The peak on the thermal curve is at 1420°C.
    • Decomposition begins at 1410°C.
    • Complete decomposition occurs at 1500°C.
    • The peak on the thermal curve is at 1510°C.
    • Decomposition begins at 1550°C.
    • Complete decomposition occurs at 1625°C.
    • The peak on the thermal curve is at 1560°C.
  2. Use in Refractories:
    • Sillimanite is also known as naturally occurring mullite.
    • Mullite consists of interlocking needle-shaped crystals, providing excellent creep resistance and stability at 1800°C.
    • It is used in refractories for applications such as blast furnaces, copper roasting, glass furnaces, gunning mixes, plastic refractories, kiln furniture, cement kilns, combustion chambers, ladles, and nozzles.
    • Sillimanite in refractories provides high-temperature stability and loading capacity.
  3. Use in Ceramics:
    • Sillimanite, Andalusite, or Kyanite serve as sources of alumina and silica in ceramics manufacturing.
    • They are used in the production of ceramics such as sanitaryware, cookware, dinnerware, ceramic tiles, and electric porcelain.
    • Mullite, derived from sillimanite, helps counterbalance shrinkage caused by clays during ceramics manufacturing.
  4. Use in Metallurgy:
    • Sillimanite minerals are used as high-temperature sand for forming casting molds in metallurgy.
    • Sillimanite, in powder form, is employed in the manufacturing of foundry paints and mold sprays to aid in the removal of metal castings from molds.
    • Additionally, sillimanite is used in kiln lining and kiln furniture to reduce thermal cracking during the manufacturing process by forming mullite during firing.

We Vstake Solution Pvt. Ltd are deeply engaged in offering a wide array of Sillimanite Flour to our valuable Clients located in Mumbai, in Navi Mumbai, in Thane and all over India.

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