METHOD OF PRODUCTION OF THE CARBONIC GRANULATED MATERIAL FOR THE STEEL ALLOYING AND THE MATERIAL PRODUCED BY THIS METHOD Russian patent published in 2006 - IPC C01B31/02 C09C1/56 C21C7/00 

FIELD: chemical industry; steel industry; methods of production of the carbonic granulated material used for the steel alloying and the material produced by this method.

SUBSTANCE: the invention is pertaining to the carbonic materials and their production, mainly to the carbonic granulated materials and the methods of their production. The method of production of the carbonic granulated material for alloying the steel provides for heating of the layer of the granulated carbon black in reaction zone of the rotated horizontal reactor up to 800-1200°C, feeding in the moving hydrocarbon black layer of the gaseous or vaporous hydrocarbons with subsequent their thermal decomposition and the pyrocarbon settling-down on hydrocarbon black. Feeding of the hydrocarbons in the layer of the hydrocarbon black with the specific surface of 5-120 m²/g and with adsorption of dibutylphthalate of 30-160 ml/100g is conducted with the volumetric speed of 18-34 hour^-1 " 1 at the ratio of the height the hydrocarbon black layer to the diameter of the reaction zone as 0.2-0.4. The carbonic material for alloying the steel produced by the offered method, possesses the value of the closed porosity of the compacted pyrocarbon granules of the hydrocarbon black equal to 33-58 %. The technical result of the invention is production of the carbonic material with the properties ensuring upgrading of the degree of absorption of the carbonic material in the process of the out-of-furnace treatment of the steel in combination with the high accuracy of the alloying the steel with the carbon (± 0.02 %).

EFFECT: the invention ensures production of the carbonic material with the properties providing upgrading of the degree of absorption of the carbonic material in the process of the out-of-furnace treatment of the steel in combination with the high accuracy of the alloying the steel with the carbon.

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