Calcined alumina

Scope and purpose

Calcined alumina is used both in the production of molded and unformed refractories. Depending on the size of particles and crystals, they perform different functions.

Characteristics

Material manufactured by ALMATIS (Germany)

Basic indicators

Physico-chemical properties CT 9 G CT 9 FG CT 800 FG CT 800 SG CT 10 SG
Na2O,% 0.15 0.15 0.12 0.12 0.40
Fe2O3,% 0.04 0.04 0.02 0.02 0.03
MgO,% 0.01 0.01 <0.002 <0.002 <0.002
SiO2,% 0.03 0.03 0.02 0.02 0.01
CaO,% 0.02 0.02 0.02 0.02 0.01
Beats surface, m2g (BET) 0.7

 

0.8 0.9 1.0 13.0
D50 Cilas, μm 5.0 5.0 3.7 3.4 3.0
D90 Cilas, μm 20 15      
D50 Sedigraph, μm         2.8
Monomode particle distribution monomode. monomode. monomode. monomode. monomode.

Benefits:

  • improve the refractoriness of the final product and service qualities as a whole through the use of cleaner raw materials and an increased content of alumina;
  • increase mechanical strength and wear resistance due to optimal particle packing and the introduction of alumina into the finely ground part;
  • when interacting with a binder, a matrix phase is formed having high refractoriness and heat resistance.

 

Concerning the acquisition calcined alumina and receipt of detailed advice on product properties, delivery conditions and the conclusion of the contract, please contact the managers:

 

+74872701242

zakaz@vulkantm.com

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