Abstract
Cupric ferrite compound formed during dead roasting of copper matte can be recovered in the smelting process by reacting with the FeS contained in the matte according to the reaction 2CuO·Fe2O3 + 2FeS(matte) + 3SiO2 = Cu2S(matte) + 3(2FeO·SiO2) (slag) + SO2(g), The effects of the slag/matte ratio, reaction time and silica content have been studied in a laboratory under conditions similar to industrial practice. Experimental result shows that the copper from cupric ferrite is transferred to the matte, increasing its grade, while the iron is transferred to the slag phase.
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Nonmeeting paper number 05-318. Discussion of this peer-reviewed and approved paper is invited and must be submitted to SME Publications Dept. prior to Feb. 28, 2007.
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Fan, Y., Parra, R., Parada, F. et al. Interaction of cupric ferrite, copper matte and slag at 1573 K. Mining, Metallurgy & Exploration 23, 126–132 (2006). https://doi.org/10.1007/BF03403199
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DOI: https://doi.org/10.1007/BF03403199