• Bemiti
  • Products

Boehmites

Home    Products
SIBOM® boehmites are formed by hydrothermal ageing of aluminium hydroxide. SIBOM® is a fully crystalline (99%) boehmite with low impurity content. The small particle size and the unique structure of oxide hydroxide make it appropriate for use in various industries.
The result of producing boehmite with the hydrothermal method is a crystalline aluminium oxide hydroxide, which is used as a catalyst in the oil industry. Aluminium oxides are gaining in importance as an environmentally friendly refractory material without halogen elements in polymers, which are treated at higher temperatures. Boehmites are stable at high temperatures and optimal for use in electric thermal insulation elements.
  • SIBOM® boehmites are used as coating additives on contact surfaces of various foundry furnaces and devices for recasting and casting of molten materials.

  • SIBOM® boehmites are used in advanced ceramics and help reduce shrinkage, increase density and the whiteness of these complex products.

  • SIBOM® boehmites are used as catalyst carriers in fluid catalytic cracking (FCC). Microcrystalline boehmites improve the attrition resistance of catalysts and are an appropriate metal neutraliser.

  • Paints and coatings

    Due to their specific properties, SIBOM® boehmites are added to paints to increase their thermal stability and reduce the number of required layers.
Type of ProductSIBOM® P84SIBOM® P84-2SIBOM® MS65
Al2O3 % 79 - 83  79 - 85 79 - 85
AlO(OH) % 95 - 99 97 - 99 97 - 99
Na2Total % 0.10 - 0.16 0.10 - 0.20 0.10 - 0.25
Fe2O3 % 0.02 - 0.08 0.02 - 0.10 0.02 - 0.10
Additive % - - 0.50 - 0.80
SiO2 % - - 0.05 - 0.07
Bulk Density (20°C) g/l 700 - 1100 450 - 650 1500 - 1700
Solid Content (3h/105 °C) % - 99 - 100 60 - 63
Loss on ignition (1h/105 – 800 °C) % 15 - 19 15 - 19 15 - 19
Loss on ignition (1h/800°C) % 81 - 85 81 - 85 -
Average particle size d50 µm 10 - 15 1 - 3 0.9 - 1.1
Specific surface area (BET) m2/g 2 - 8 5 - 15 5 - 15
Characteristics   White powder White powder White slurry
bemiti
36
Back to top