Download B0656 Fundamentals of steelmaking by E.T. Turkdogan PDF

By E.T. Turkdogan

Provides engineers, learn scientists and graduate scholars a transparent knowing of the operation and regulate of the pyrometallurgical method. it is going to even be invaluable for technical education classes given to metal plant engineers and plant operators

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4) gives the rate of forward reaction in terms of the absolute reaction rate theory. e. 6) where CPj is the isothermal rate constant of the forward reaction. As the reaction progresses, concentrations of the reactants Land M decrease while the concentration of the product Q increases. Because of these composition changes and the influence of the reverse reaction Q ~ L + M, the rate decreases with an increasing reaction time. 7) where

Furthermore, since De does not vary much with temperature, the apparent heat of activation for the reaction at this limiting case is about one-half of that for the case (a) of almost complete pore diffusion. (c) With large particles, high temperatures and low velocity gas flows, the rate is ultimately controlled by mass transfer in the gas-film boundary layer, for which the rate per pellet would be proportional to the particle diameter. e. gasification of carbon, is decisively affected by the pore structure, internal pore surface area, effective gas diffusivity in the pores and particle size as outlined in the previous section.

6. D. GASKELL,Introduction to metallurgical thermodynamics, McGraw-Hill, New York, 1973. 7. T. TURKDOGAN, Physical chemistry of high temperature technology, Academic Press, New York, 1980. 8. T. TURKDOGAN,Ironmaking and Steelmaking, 1993, 20, 469. 9. T. TURKDOGAN, Physicochemical properties of molten slags and glasses, The Metals Society, London, 1983. 10. M. A. S. HEMINGWAY,Am. , 1979, 64, 86. 11. 1. BARIN and O. KNACKE, Thermochemical properties of inorganic substances, Springer-Verlag, Berlin, 1973.

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