ORALS
SESSION: Non-ferrousMonPM2-R7
| 6th Intl. Symp. on Sustainable Non-ferrous Smelting and Hydro/Electrochemical Processing |
| Mon Nov, 5 2018 / Room: Pontal (50/2nd) | |
| Session Chairs: Shefik Imeri; Andrej Ivanič; Session Monitor: TBA |
16:20: [Non-ferrousMonPM210]
Studying Effective Parameters in Reduction Waste Copper of Electrical Resistance Furnace Slag in Khatoonabad Smelter Moein
Koochaki1 ;
1National Iranian Copper Industries Company, Tehran, Iran, Iran;
Paper Id: 326
[Abstract] The process of extracting copper in the copper smelting plant in Khatoon Abad is by the method of flash smelting. Copper slay is a byproduct produced from matte smelting and copper refinery. This slay contains 1-3% of copper. Electric resistance furnace is mainly used for copper recycling from slay under 1% of output copper and production with value added. In this research, sampling of in input slay, output matte and slay within 6 months has been done for reduction of output copper percentage from electric furnace. XRF and XRD experiments, mesh copper particles and photomicrography of samples were determined, and the temperature variations of input slay and output matte, height variations of electrode immersion in the slay and its power consumption, and proportion of Fe/SiO<sub>2</sub> of input slay were investigated. The result demonstrates that coke charge reduces oxidizing copper and reduces its loss in the slag, as well as the position of electrode in slay bath and the depth of slay lager change in the energy distribution. As for operational conditions of profile furnace and variations of proportion of Fe in ferro silicate, slay is effective with more filtration of slay from copper, and granularity of copper particles in input and output slay is effective with better extraction of copper. By controlling these cases, on average the percentage of copper in the output slay decreased to 0/5 weight percent, and that created significant savings.
References:
[1] John w. Goth, August, 1951. AN INVESTIGATION OF THE ELECTRIC SMELTING OF COPPER CONCENTRATES. McGill University: Montreal, Canada
[2] R.H. Eric, Jan. 2004, Slag properties and design issues pertinent to matte smelting electric, South African Institute of Mining and Metallurgy
[3] Basic design of factory 2001
