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Factors influencing dissolution of carbonaceous materials in liquid iron

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Abstract

Carbon dissolution into liquid iron was investigated by a kinetic model assuming the rate is limited by interfacial carbon dissociation and mass transfer in the liquid iron. The rate influencing factors and the inter-relations among them were discussed with the aid of the kinetic model.

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Abbreviations

A:

solid-liquid contact area (cm2)

a solid, a c, and a*c :

activities of carbon in solid, in liquid, and at interface, respectively

C(solid) :

solid carbon

[C], [C],* [C],sat and [C]0 :

carbon contents in liquid, at interface, of saturation, and in initial liquid, respectively (mass pct)

f C, f*C, and f satC :

carbon activity coefficients in liquid, at the interface, and in the liquid saturated with carbon

K r :

equilibrium constant for Reaction [1]

k r :

rate constant of Reaction [1] for rate Eq. [11] (g/s cm2)

k′ r :

rate constant of Reaction [1] for rate Eq. [12] (g/s cm2)

k m :

mass-transfer coefficient in liquid (cm/s)

k t :

overall rate constant of carbon dissolution (g/s cm2)

r r, r m, and r d :

rates of the dissociation reaction, mass transfer, and dissolution of carbon (g/s)

V m :

volume of liquid iron (cm3)

ρ m :

density of liquid (g/cm3)

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Authors and Affiliations

  1. the CRC for Coal in Sustainable Development, School of Materials Science and Engineering, University of New South Wales, 2052, Sydney, NSW, Australia

    Haiping Sun (Lecturer)

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  1. Haiping Sun
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Sun, H. Factors influencing dissolution of carbonaceous materials in liquid iron. Metall Mater Trans B 36, 893–894 (2005). https://doi.org/10.1007/s11663-005-0091-3

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  • DOI: https://doi.org/10.1007/s11663-005-0091-3

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