Investigation of Copper Losses to Synthetic Slag at Different Oxygen Partial Pressures in the Presence of Colemanite

Date

2016-09-01

Author

RÜŞEN, AYDIN
Derin, Bora
Geveci, Ahmet
Topkaya, Yavuz Ali

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Copper losses to slag are crucial for copper matte smelting and converting stages. One factor affecting the copper losses to slag during these processes is partial pressure of oxygen. In this study, theoretical and experimental investigations of oxygen partial pressure effect on copper losses to fayalite type slag in the presence of colemanite were investigated. Theoretical considerations include liquidus temperatures and phase diagrams of the fayalite type slag calculated by the FactSage software program. In the experiments, a synthetic matte-slag (SM-SS) was produced by melting certain amounts of reagent grade Fe2O3-SiO2 and metallic Fe as starting materials. Experiments were carried out with SM-SS pair by the addition of calcined colemanite (from 0% to 6%) under various partial pressures of oxygen (10(-7), 10(-9), 10(-11) atm) at 1250A degrees C for 2 h. From the experimental results, it was found that the amount of copper in slag decreased slowly when colemanite was increased under all oxidizing atmospheres. The lowest copper content in synthetic slag was obtained as 0.38% after 6% colemanite addition.

Subject Keywords

Thermodynamic considerations, Waste management, Viscosity, Minimization, Recovery

URI

https://hdl.handle.net/11511/30393

Journal

JOM

DOI

https://doi.org/10.1007/s11837-016-1954-6

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

A. RÜŞEN, B. Derin, A. Geveci, and Y. A. Topkaya, “Investigation of Copper Losses to Synthetic Slag at Different Oxygen Partial Pressures in the Presence of Colemanite,” JOM, pp. 2316–2322, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30393.