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Thermodynamic analysis of The sulphaTiza

Peter Iliev, Vladislava Stefanova

2026enthermodynamicsflash smeltingcopperironsulphatesdust-gas flow

Abstract

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Analytical studies of the physicochemical interactions and isothermal equilibriums in the Cu-Fe-S-O system were conducted at temperatures 1623K, 1373K and 973K by using the software HSC Chemistry ver.7.1 modules: Reaction Equations and Lpp diagrams. The thermodynamical stability of phases in Cu-S-O and Fe-S-O systems was determined under specific conditions. The tendencies of their variation upon injection of 'sulphatizing air' into the dust-gas flow output of the flash smelting furnace (FSF) were also studied. It was established that the formation of cuprum sulphate and iron ferric sulphate is thermodynamically possible only at temperatures lower than 973K. The results predicted through analytical investigation were corroborated by chemical and X-ray analyses of dust samples taken from the convective part of the waste heat boiler (WHB).

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Cite This Work

@article{9d7055db-c20a-499f-92a0-6e26480b3265,
  title={Thermodynamic analysis of The sulphaTiza},
  author={Peter Iliev and Vladislava Stefanova},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Thermodynamic analysis of The sulphaTiza
AU  - Peter Iliev
AU  - Vladislava Stefanova
PY  - 2026
LA  - en
ER  -

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