METHOD OF PREPARING TO METALLURGICAL CONVERSION LOOSE GIDROGETITOVOI IRON ORE OOLITOVOGO STRUCTURE A

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FIELD : metallurgy.SUBSTANCE : claimed process comprises production of goethite dephosphorised concentrate by thermal processing of iron-bearing material and removal therefrom of phosphorus-bearing material. Note here that a pulsed skin-heating of oolites to over 350°C is performed. Note also that oolite hydrogeothite shell is subjected to dehydrating blast to produce the goethite dephosphorised concentrate of iron ore with iron content of 70%.EFFECT : production of goethite dephosphorised concentrate of iron ores at lower stock input.3 cl, 3 dwg