Composition for inhibiting deposits in the calcination of fluxed iron ore pellets
AssigneeBetzDearborn Inc.
InventorDonald C. Roe
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Abstract
A stable aqueous solution comprising a water soluble salt of a magnesium compound, a surfactant and a calcium salt inhibitor is used to reduce deposits in kilns or furnaces used to make iron ore agglomerates, known as pellets, during iron ore calcination.
Claims4
A composition for inhibiting the formation of iron oxide containing deposits on the surfaces of heating devices during fluxed iron ore pellet calcination comprising an aqueous solution containing a water soluble salt of a magnesium compound in an amount effective for inhibiting the formation of iron oxide-containing deposits, a surfactant selected from the group consisting of ethoxylated alkylphenols, phosphate esters and nonionic glucosides, and a calcium salt inhibitor selected from the group consisting of 2-phosphonobutane-1,2,4-tricarboxylic acid and 1-hydroxyethylene-1,1-diphosphonic acid.
Dependencies are inferred from the claim text.