Kinetics of reduction of iron ore—coal pellets

1989 ◽  
Vol 35 (7) ◽  
pp. 2461-2469 ◽  
Author(s):  
S. B. Sarkar ◽  
H. S. Ray ◽  
I. Chatterjee
1996 ◽  
Vol 430 ◽  
Author(s):  
I. Gomez ◽  
J. Aguilar ◽  
M. Gonzalez ◽  
J. Morales

AbstractThis work deals with kinetic description of carbothermic reduction of iron oxides using microwaves as power source. Previous researches shown that it is possible to conduct this kind of processes successfully, but real kinetic comparisons between conventional and microwaves procedure have been presented partially. The aim of this work is to describe reduction kinetics, taking into account how the iron oxide is reduced by microwaves compared with conventional energy supply. In this study we used iron ore in pellet shape and dust. We found that both, pellet and dust reduction stops when it reaches approximately 40%, even at whole power


1993 ◽  
Vol 33 (11) ◽  
pp. 1168-1173 ◽  
Author(s):  
Sujoy K. Dutta ◽  
Ahindra Ghosh

Author(s):  
Masanori TOKUDA ◽  
Hideyuki YOSHIKOSHI ◽  
Masayasu OHTANI

AIChE Journal ◽  
1962 ◽  
Vol 8 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Edwin Kawasaki ◽  
Jack Sanscrainte ◽  
Thomas J. Walsh

2013 ◽  
Vol 334-335 ◽  
pp. 375-380 ◽  
Author(s):  
A.N. Dmitriev ◽  
Yu.A. Chesnokov ◽  
Galina Yu. Vitkina

The technique of defining the minimum coke consumption in blast furnace smelting allows for the calculation of the reserve of coke economy on the basis of thermodynamic principles. In this reserve the constitutive role belongs to the reducibility of the iron ore materials (the agglomerate and pellets). In the present paper, the questions of the reduction kinetics of the iron ore materials and diffusion processes at reduction of iron from its oxides are considered. It is shown that the reducibility of the iron ore materials is the basic reserve of economy the scarce and expensive coke in the blast furnace smelting.


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