Agglomerating particulate ore materials using polymeric binders

Details Agglomerating particulate ore materials using polymeric binders Agglomerating particulate ore materials using polymeric binders

C - Chemistry, Metallurgy

22

B

C22B 1/242 (2006.01) C22B 1/244 (2006.01)

Patent

CA 2416662

Methods for agglomerating particulate material, especially iron ore and iron ore which is difficult or impossible to bind using known binders and techniques, by rendering the surface of the material negative, by chelating interfering elements in or on the material to permit effective performance of the binder, or by using a binding effective amount of a polymeric binder such as guar, starch, polyacrylates cellulose, lignin and like materials, sodium carbonate, sodium citrate, and, optionally, caustic.

Procédé d'agglomération d'un matériau en particules, principalement de minerai de fer, qu'il est difficile ou impossible de lier en utilisant des liants et des techniques connus. Le procédé consiste à rendre la surface du matériau négative par chélation d'éléments interférant dans/ou sur le matériau pour permettre la fonction efficace du liant, ou à utiliser une quantité efficacement liante d'un liant polymère, de carbonate de sodium, citrate de sodium et, éventuellement, de matière caustique.

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