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HEAVY NON-FERROUS METALS
Название Phase equilibrium in FeO—Fe2O3—CaO—SiO2 slag system
Автор Nicolic S., Henao H., Zhao B., Hayes P. C., Jak E.
Информация об авторе

Pyrometallurgical Research Center, Faculty of Chemical Engineering, Queensland University, Brisbane, Queensland, Australia

S. Nicolic, Officer;
H. Henao, Officer
B. Zhao, Officer
P. C. Hayes, Officer
E. Jak, Professor, e-mail: e.jak@uq.edu.au

Реферат

This paper has been presented at the TMS Conference in Seattle (USA) in February, 2010. Slags of ferrous calcium silicate have been determined with FeO–Fe2O3–CaO—SiO2 system. They are the base of almost all slags, which are free of iron and using in primary and secondary metallurgical processes. Despite industrial and scientific importance of this system, phase equilibrium isn't investigated in full diapason of processing conditions, which has been occurred in industrial practice. Determination of parameters of presented slag system is necessary for existent metallurgical processes optimization and for the new technologies development. For researching phase equilibrium of this slag, new technique of experiment realization has been developed. The technique includes samples equilibration with fixed partial pressure of oxygen, rapid cooling and analysis of solid and liquid phases content, using electron microprobe analysis with transducers of dispersion analysis with waves length. Using this technique, it is possible to obtain data of liquidus and solidus for all primary phase fields in this system. Experimental data, available on this day, educe interesting directions and give some unexpected results, which has been contradicted to some traditional views on chemical content of slag in this system.

Ключевые слова Phase equilibrium, liquidus, slags, metals losses, metals extraction, liquidus, test sample.
Библиографический список

1. Jak E., Lee H. G., Hayes P. C. Korean IMM J., 1995, Vol. 1. pp. 1–8.

2. Jak E., Hayes P. C. VII Int. Conf. on Molten Slags, Fluxes and Salts ; Cape Town, South Africa 2004, Mineral Processing and Extractive Metallurgy (TIMM C), March 2008, Vol. 117, No. 1, pp. 1–17 (17).

3. Ilyushechkin A., Hayes P. C., Jak E. Metall. Mater. Trans B, 35. 2004. No. 2, pp. 203–215.

4. Nikolic S., Hayes P. C., Jak E. Metall. Mater. Trans B, 39. 2008. No. 2, pp.179–188, 189–199, 200–209, 210–217.

5. Nikolic S., Hayes P. C., Jak E. Metall. Mater. Trans B., 40, 2009. No. 6, pp. 892–899, 900–909, 910–919.

6. Henao H. M., Nexhip C., George-Kennedy D. P., Hayes P., Jak E. Investigation of Phase Equilibria of Copper Smelting Slags in the FeO—Fe2O3–SiO2—CaO—MgO—Al2O3 system at fixed oxygen potential. VIII Int. Conf. Molten Slags, Fluxes and Saltpp. Santiago (Chile), Jan. 2009.

7. Osborn E. F., Muan A. Ceramic Foundation. Orton, Columbus, Ohio, 1960.

8. Phillips B., Muan A. J. Am. Ceram. Soc. 42. 1959. No. 9, pp. 413–423.

9. Decterov S., Jung I. H., Jak E., Hayes P., Pelton D. VII Int. Conf. on Molten Slags, Fluxes and Salts, Capetown. — Johannesburg (South Africa) : The South African Inst. of Mining and Metallurgy. 2004, pp. 839–850.

10. FactSage (2008). Ecole Polytechnique. Monreal. [Electronic resource]. Access mode : http://www.factsage.com/.

11. Bale C. W., Chartrand P., Decterov S. A., Eriksson E., Hack K., Mahfoud R. B., Mclancon J., Pelton A. D., Petersen S. Calphad. 2002. Vol. 26, pp. 189–228.

12. Jak E., Zhao B., Hayes P. 6th International Conference on Slags, Fluxes and Molten Salts, June 2000. — Stockholm / Helsinki : Mineral Processing and Extractive Metallurgy (TIMM C). 2008. Vol. 117, No. 3, pp. 147–152 (6).

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