Minimizing of copper losses to converter slag by a boron compound addition

Mehmet Ali Topçu, Aydin Rüşen*, Bora Derin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


In copper production, the concentrate obtained after ore-flotation follows by pyrometallurgical route; Smelting, Converting and Fire Refining stages to obtain the anode plates. In this production process, a significant amount of copper (4-8 %Cu) goes to converter slag (CS) which is the most serious problem facing the copper sector. Therefore, in this study, it was aimed to minimize the copper losses to CS in converter stage by adding calcined colemanite (CC) which is a boron compound. After characterization of CS in detail, effect of the reaction temperature and CC addition were experimentally investigated. Then, thermochemical calculations of the slag with the addition of CC were carried out by using the Equilib and Phase Diagram modules of the FactSage thermochemical software. Experimental results show that the amount of copper losses to the CS can be decreased from 4.45% to 1.2% by adding 2% CC to the converter slag at the temperature of 1250 °C for 3 h reaction time.

Original languageEnglish
Pages (from-to)6244-6252
Number of pages9
JournalJournal of Materials Research and Technology
Issue number6
Publication statusPublished - Nov 2019

Bibliographical note

Publisher Copyright:
© 2019 The Authors.


The authors wish to thank the Karamanoglu Mehmetbey University Scientific Research Projects (BAP) Coordinating Office for support with grant number KMU-BAP-28-M-16 . Also, we are grateful to Scientific and Technological Research Application and Research Center (BİLTEM) for SEM images.

FundersFunder number
Firat University Scientific Research Projects Management UnitKMU-BAP-28-M-16


    • Calcined colemanite
    • Converter slag
    • Copper loss
    • FactSage


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