Calcined bauxites from Guyana II

Bauxite RASC

Chemical analysis (standard)
% Typical Guaranteed
Al2O3 89,94 min. 87
SiO2 5,36
Fe2O3 1,14 max. 1,75
TiO2 3,02
CaO 0,02
MgO 0,02
Na2O 0,02 max. 0,25
K2O 0,03

 

Physical properties
Typical Guaranteed
Bulk density 3,15 3,10 g/cm3
Water absorption 3,74 %
Apparent porosity 12 %

 

Mineralogical composition
Main phase α – alumina
Secondary phase mullite

 

Other information
Bauxite RASC (Refractory A-grade Super Calcined) is a high alumina material with low percentages of iron and alkali. It is produced by mining high purity gibbsite ore which is beneficiated to reduce impurity levels and then calcined in a rotary kiln at high temperature.

Available sieve fractions:

  • 0 – 0,1 mm
  • 0 – 0,5 mm
  • 0 – 1 mm
  • 0,5 – 1 mm
  • 1 – 3 mm
  • 2 – 5 mm
  • 5 – 10 mm
  • 0 – 30 mm
  • 5 – 30 mm (please ask about availability)
  • 10 – 30 mm (please ask about availability)
  • other (please ask)