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Pelletization
Organic binder for iron ore concentrates

PERIDUR is a commercially proven organic binder developed by AkzoNobel for the agglomeration of iron ore pellets. During pellet production, it provides excellent growth behavior, resistance to deformation, cleaner pellet surfaces, higher fired pellet porosity and reducibility.

 More about the advantages of using PERIDUR 

Bentonite, while long considered to be the industry standard, has the disadvantage of adding unwanted silica into the pellet. Some forms of sodium bentonite are known to contain more than 65% SiO2 by weight.

This additional silica blocks the porosity of the pellet inhibiting the flow of reducing gases into the interior regions of the pellet. This lowers the reducibility, increasing:

  • the energy requirements in the steel-making process and

  • the costs for the handling and disposal of increased slag levels.  

 

 
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