scholarly journals Thermodynamic analysis and process optimization of zinc and lead recovery from copper smelting slag with chlorination roasting

2021 ◽  
Vol 31 (12) ◽  
pp. 3905-3917
Author(s):  
Bei-kai ZHANG ◽  
Xue-yi GUO ◽  
Qin-meng WANG ◽  
Qing-hua TIAN
Keyword(s):  
Process Optimization ◽  
Thermodynamic Analysis ◽  
Copper Smelting ◽  
Lead Recovery ◽  
Smelting Slag ◽  
Chlorination Roasting

scholarly journals Immobilization of fluorides from spent carbon cathode in a copper smelting slag

2021 ◽  
pp. 54-54
Author(s):  
L. Li ◽  
G.-D. Wu ◽  
F.-G. Tian
Keyword(s):  
Chemical Analysis ◽  
Melting Temperature ◽  
Thermodynamic Analysis ◽  
Residence Time ◽  
Flow Rate ◽  
Molten Copper ◽  
Copper Smelting ◽  
Carbon Cathode ◽  
Smelting Slag ◽  
N2 Flow Rate

The fluorides from spent carbon cathodes could be effectively solidified in a molten copper smelting slag (FeO-Fe3O4-SiO2-CaO-Al2O3) in forms of CaF2 and Ca4Si2F2O7. The results of thermodynamic analysis, chemical analysis, and XRD and EPMA analyses showed that the F solidification efficiency increased with the CaO amount and decreased with the addition of Al2O3 and SiO2. In addition, it was noteworthy that the F solidification efficiency decreased with an excessive CaO amount, which could be ascribed to the consumption of SiO2 through forming CaSiO3 and Ca3Si2O7. It restricted the solidification of the fluoride into Ca4Si2F2O7. Under the conditions of melting temperature of 1300?C, residence time of 60 min and N2 flow rate of 40 ml/min, the optimum CaO and NaF amounts were found to be 20 wt.% and 6 wt.% respectively, in which the F solidification efficiency in the copper smelting slag of FeO-Fe3O4-SiO2-CaO-Al2O3 obtained 98.35%.

scholarly journals Ferro-silico-manganese production from manganese ore and copper smelting slag

2020 ◽  
Vol 9 (6) ◽  
pp. 13625-13634
Author(s):  
Zulfiadi Zulhan ◽  
Irfan Muhammad Fauzian ◽  
Taufiq Hidayat
Keyword(s):  
Copper Smelting ◽  
Manganese Ore ◽  
Smelting Slag

Reduction of copper smelting slag using waste cooking oil

2019 ◽  
Vol 236 ◽  
pp. 117668 ◽  
Author(s):  
Shiwei Zhou ◽  
Yonggang Wei ◽  
Shuoyao Zhang ◽  
Bo Li ◽  
Hua Wang ◽  
...  
Keyword(s):  
Waste Cooking Oil ◽  
Copper Smelting ◽  
Cooking Oil ◽  
Smelting Slag
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