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INFLUENCE OF MnO ON REDUCTION OF TiO_2 IN BLAST FURNACE TYPE SLAG

DU Hegui , ZOU Anhua , Northeast University of Technology , Shenyang , China Du Hegui , Professor , Department of Ferrous Metallurgy , Northeast University of Technology , Shenyang 110006 , China

金属学报(英文版)

A study was carried out on the formation of Ti(C,N) during smelting vanadium-bearing titanomagnetite in blast furnace and the influence of MnO content on reduction of TiO_2 in the slag containing high titania. The reduction of TiO_2 is restricted by MnOpredominantly at the slag-metal interface and no more at the slag-coke one. The formation of Ti(C,N) is remarkably restricted by MnO in the slag when the MnO content is about 4% and the basicity from 0.6 to 1.2 in the slag. MnO may also retards the reduction of SiO_2 and accelerates the desulphidation under certain condition.

关键词: blast furnace smelting , null , null , null , null

KINETICS OF CARBON COMBUSTION IN PLASMA AIR

DU Hegui , LIU Xin , Northeast University of Technology , Shenyang , China

金属学报(英文版)

A new equipment and method for measuring the kinetics of carbon combustion in plasma air have been designed. The activation energies of graphite combustion in this condition have been given: E_1=74.780 kJ / mol (900-1560 K) E_2=44.720 kJ / mol (1560-2100 K)

关键词: carbon , null , null , null

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