Method for producing reducible iron-containing material having less clustering during direct reduction and products thereof
AssigneeAkzo Nobel N.V.
InventorHarry R. G. Steeghs
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Abstract
A method for abating the incidence of cluster formation of reducible iron-containing material during the direct reduction of said material is disclosed. The method generally comprises contacting the reducible iron-containing material with a cluster-abating effective amount of either a dispersion which comprises at least one particulate material which is substantially nonhardening in the presence of water and at least one fluxing agent or a dispersion which comprises an aluminum-containing clay.
Claims25
A method for lowering the incidence of clustering of reducible iron-containing materials during the direct reduction of the iron in said materials, said method comprising contacting said iron-containing materials prior to the direct reduction thereof with a cluster-abating effective amount of a dispersion which comprises at least one particulate material which is substantially nonhardening in the presence of water and at least one fluxing agent.
A method for lowering the incidence of clustering of reducible iron-containing materials during the direct reduction of the iron in said materials which comprises contacting said iron-containing materials prior to the direct reduction thereof with a cluster-abating effective amount of a dispersion which comprises at least one particulate material which is substantially nonhardening in the presence of water, wherein said particulate material has an average particle size of less than about 250 microns.
A method for lowering the incidence of clustering of reducible iron-containing materials during the direct reduction of the iron in said materials, said method comprising contacting said iron-containing materials prior to the direct reduction thereof with a cluster-abating effective amount of a dispersion which comprises at least one aluminum-containing clay selected from the group consisting of kaolinite, attapulgite, dickite, nacrite, halloysite, pyrophyllete, montmorillonite, chlorite, hectorite, saponite, kaolin, sodium aluminum silicate and mixtures thereof.
Dependencies are inferred from the claim text.