TY - GEN
T1 - Effect of basicity and ferro-silicon addition matte formation from Ge-copper bearing slag
AU - Kayembe, Junior Ngoie
AU - Wa Kalenga, Michel Kalenga
AU - Nyembwe, Didier Kasongo
N1 - Publisher Copyright:
Copyright © 2018 MS&T18®
PY - 2019
Y1 - 2019
N2 - Through addition of basic oxides, the increase of basicity of multicomponent silicate slags leads to breaking a silicate network and enhances the recovery of valuable metals. In this study, an acidic copper slag containing Cu, Co, Ge, Fe and Zn was used to produce matte for base metal recovery. XRF, XRD and SEM-EDS were used for characterization. CaSO 4 was used as Sulphur provider and for basicity change. FeSi was added to enhance the diffusion of Ge from the slag. The sample was placed in a graphite crucible with carbon added to favor reduction and limit the reactivity of the crucible. CO was blown to favor reduction for easy matte formation. A tube furnace was used for the experiments and was set at 1400 °C as working temperature. Preliminary results have confirmed the formation of matte with Fe, Cu present in the matte with low Ge content with no zinc present.
AB - Through addition of basic oxides, the increase of basicity of multicomponent silicate slags leads to breaking a silicate network and enhances the recovery of valuable metals. In this study, an acidic copper slag containing Cu, Co, Ge, Fe and Zn was used to produce matte for base metal recovery. XRF, XRD and SEM-EDS were used for characterization. CaSO 4 was used as Sulphur provider and for basicity change. FeSi was added to enhance the diffusion of Ge from the slag. The sample was placed in a graphite crucible with carbon added to favor reduction and limit the reactivity of the crucible. CO was blown to favor reduction for easy matte formation. A tube furnace was used for the experiments and was set at 1400 °C as working temperature. Preliminary results have confirmed the formation of matte with Fe, Cu present in the matte with low Ge content with no zinc present.
KW - Basicity
KW - Matte
KW - Sulfurization
UR - http://www.scopus.com/inward/record.url?scp=85060233014&partnerID=8YFLogxK
U2 - 10.7449/2018/MST_2018_1125_1131
DO - 10.7449/2018/MST_2018_1125_1131
M3 - Conference contribution
AN - SCOPUS:85060233014
T3 - Materials Science and Technology 2018, MS and T 2018
SP - 1125
EP - 1131
BT - Materials Science and Technology 2018, MS and T 2018
PB - Association for Iron and Steel Technology, AISTECH
T2 - Materials Science and Technology 2018, MS and T 2018
Y2 - 14 October 2018 through 18 October 2018
ER -