METHOD OF INTENSIFYING PROCESSES OF AGGLOMERATION OF IRON ORE MATERIALS Russian patent published in 2016 - IPC C22B1/244 

FIELD: metallurgy.

SUBSTANCE: invention relates to production of agglomerate. To intensify the process of agglomeration, charge is prepared for agglomeration, consisting of iron-ore concentrate, ore, flux, solid fuel and interpolymer binding additive, mixing and sintering. Method uses interpolymer binding additive, subjected to mechanochemical activation and thermal action, in an amount of 1/100-1/400 units of weight of solid fuel. Mixture comprises mineral additives and a polymer complex comprising following: low viscosity polysaccharide anionic polymer with a viscosity number of 1 % suspension of less than 5 mPa*s - 20-40 %, highly viscous non-ionic polyacrylamide having a molecular weight of 5-15 x 10⁶ and a degree of hydrolysis of less than 6 % with 1 % slurry viscosity greater than 50 mPa*s - 5.10 % and a mineral additive - balance. Mineral additives in low-viscosity polymer are natural aluminosilicate minerals in an amount of 40 % by weight of polymer, and in high-viscosity polymer - alkali and alkali-earth metal salts in an amount of 30 %.

EFFECT: invention increases efficiency of process by increasing rate of formation of solid pellets optimum granulometric composition of high iron content.

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