Metall. Res. Technol.
Volume 115, Number 2, 2018
|Number of page(s)||13|
|Published online||09 January 2018|
Theoretical analysis and experiments for the carburization of vanadium-bearing hot metal★
Department of metallurgical technology, Central Iron and Steel Research Institute,
Beijing, PR China
* e-mail: email@example.com
Accepted: 27 September 2017
In this study, the feasibility of the carburization of vanadium-bearing hot metal was first investigated by thermodynamic analysis. Next, three carburizers, namely a low-nitrogen carburizer, anthracite, and coke, were used for carburization of 500 g of vanadium-bearing hot metal at 1450 °C, 1500 °C, and 1550 °C, respectively. The carbon increments for the low-nitrogen carburizer, anthracite and coke followed decreasing order in the temperature range from 1450 °C to 1550 °C. Anthracite was the most cost-effective carburizer. Hence, anthracite is used in pilot-scale experiments of the vanadium-bearing hot metal (100 kg and 200 kg). Finally, vanadium extraction experiments of the vanadium-bearing hot metal were carried out in a top-bottom-combined blowing induction furnace. It is proved that the average superheat degree of semi-steel increases from 100 °C to 198 °C by the carburization of vanadium-containing hot metal.
Key words: carburization / vanadium-bearing hot metal / theoretical analysis / anthracite
© EDP Sciences, 2017
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