Oxidation leaching of copper smelting dust by controlling potential

2018 ◽  
Vol 28 (9) ◽  
pp. 1854-1861 ◽  
Author(s):  
Wei-feng LIU ◽  
Xin-xin FU ◽  
Tian-zu YANG ◽  
Du-chao ZHANG ◽  
Lin CHEN
Keyword(s):  
Copper Smelting ◽  
Smelting Dust

scholarly journals Detoxification of Arsenic-Containing Copper Smelting Dust by Electrochemical Advanced Oxidation Technology

Minerals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1311
Author(s):  
Meng Li ◽  
Junfan Yuan ◽  
Bingbing Liu ◽  
Hao Du ◽  
David Dreisinger ◽  
...  
Keyword(s):  
Solid Waste ◽  
Arsenic Removal ◽  
Removal Rate ◽  
Advanced Oxidation ◽  
Copper Smelting ◽  
Lead And Zinc ◽  
Heavy Nonferrous Metals ◽  
Advanced Oxidation Technology ◽  
Oxidation Technology ◽  
Smelting Dust

A large amount of arsenic-containing solid waste is produced in the metallurgical process of heavy nonferrous metals (copper, lead, and zinc). The landfill disposal of these arsenic-containing solid waste will cause serious environmental problems and endanger people’s health. An electrochemical advanced oxidation experiment was carried out with the cathode modified by adding carbon black and polytetrafluoroethylene (PTFE) emulsion. The removal rate of arsenic using advanced electrochemical oxidation with the modified cathode in 75 g/L NaOH at 25 °C for 90 min reached 98.4%, which was significantly higher than 80.69% of the alkaline leaching arsenic removal process. The use of electrochemical advanced oxidation technology can efficiently deal with the problem of arsenic-containing toxic solid waste, considered as a cleaner and efficient method.

scholarly journals Recirculation of Chilean Copper Smelting Dust with High Arsenic Content to the Smelting Process

2008 ◽  
Vol 49 (9) ◽  
pp. 2112-2118 ◽  
Author(s):  
Victor Montenegro ◽  
Hiroyuki Sano ◽  
Toshiharu Fujisawa
Keyword(s):  
Copper Smelting ◽  
Smelting Process ◽  
Arsenic Content ◽  
Chilean Copper ◽  
Smelting Dust ◽  
High Arsenic

Hydrometallurgical Treatment of Copper Smelting Dust by Oxidation Leaching and Fractional Precipitation Technology

JOM ◽  
2017 ◽  
Vol 69 (10) ◽  
pp. 1982-1986 ◽  
Author(s):  
Tianzu Yang ◽  
Xinxin Fu ◽  
Weifeng Liu ◽  
Lin Chen ◽  
Duchao Zhang
Keyword(s):  
Copper Smelting ◽  
Fractional Precipitation ◽  
Hydrometallurgical Treatment ◽  
Smelting Dust

scholarly journals Processing of Anthropogenic Waste of Smelters of the Ural Mining and Metallurgical Company

2020 ◽  
Author(s):  
A.M. Panshin ◽  
S.A. Yakornov ◽  
G.V. Skopov
Keyword(s):  
Precious Metals ◽  
Road Construction ◽  
Copper Smelting ◽  
Cement Production ◽  
Zinc Plant ◽  
Industrial Sites ◽  
Metallurgical Company ◽  
Smelting Slag ◽  
Smelting Dust ◽  
Fine Copper

The industrial sites of the smelters of the Ural Mining and Metallurgical Company have accumulated a lot of anthropogenic waste, the processing of which is currently economically impractical. These primarily include tailings and beneficiation tailings, as well as waste granulated and copper smelting slag. This article conducts studies on technologies for x-ray-radiometric/magnetic separation enrichment of discard slags of MMSK as well as using jigging machines. Slag and slag enrichment tailings are used for cement production and road construction. For complex processing of fine copper smelting dusts OJSC Chelyabinsk zinc plant developed, tested and implemented a special technology. After implementation of ”Actions to process industrial waste generated by UMMC enterprises at metallurgical enterprises of UMMC-Holding Corp.”, the following were noted: concentrators and special beneficiation facilities process slag; R&D on complete processing of concentrator’s tailings was conducted; smelting dust was not stored but processed in full; the technology of implementing Waelz process for processing of steel smelting dust has been developed and commercially tested; the technology for extraction of copper and precious metals from pyrite dross is to be improved. Keywords: anthropogenic waste, dust, tailings, slag, pyrite dross

Recirculation of high arsenic content copper smelting dust to smelting and converting processes

2013 ◽  
Vol 49 ◽  
pp. 184-189 ◽  
Author(s):  
Victor Montenegro ◽  
Hiroyuki Sano ◽  
Toshiharu Fujisawa
Keyword(s):  
Copper Smelting ◽  
Arsenic Content ◽  
Smelting Dust ◽  
High Arsenic

scholarly journals Effect of Metal Oxides and Smelting Dust on SO2 Conversion to SO3

Atmosphere ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 734
Author(s):  
Haipeng Liu ◽  
Qin Zhang ◽  
Hongying Yang ◽  
Yanan Wu ◽  
Jiacheng Chen ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Catalytic Oxidation ◽  
Conversion Rate ◽  
Copper Smelting ◽  
Smelting Process ◽  
Zinc Smelting ◽  
Lead Smelting ◽  
Lead Zinc ◽  
Smelting Dust ◽  
Copper Lead

The purpose of this study was to investigate the effects of metal oxides and smelting dust on the formation of sulfur trioxide during copper, lead, zinc smelting process and flue. Focusing on the effects of SO2 concentration, O2 concentration, and temperature on SO2 oxidation conversion rate under homogeneous test conditions, and under various metal oxide oxidation conditions, further in dust (mainly electric dust removal ash in copper, lead, zinc smelting process), which were studied by single factor experiment test. The results showed that the effect of heterogeneous catalytic oxidation on SO2 conversion rate is much greater than that of pure gas phase oxidation. The addition of five pure metal oxides such as Fe2O3, CuO, Al2O3, ZnO, and CaO obviously promoted the SO2 conversion rate under different conditions. At different temperatures, the ability of metal oxides to promote SO2 conversion is ranked: Fe2O3 > CuO > CaO > ZnO > Al2O3. The catalytic oxidation of copper, lead, and zinc smelting dust to SO2 conversion rate was studied, and the conclusion was drawn that the metal oxides that promoted SO2 conversion rate in copper smelting dust were Fe2O3, Al2O3, ZnO, CaO, and the main substance was Fe2O3; the metal oxides that promoted SO2 conversion in zinc smelting dust were Fe2O3, Al2O3, ZnO, CaO, CuO, and the main substances were Fe2O3 and ZnO; the metal oxides that promoted SO2 conversion rate in lead smelting dust were Fe2O3. Whether metal oxides or copper, zinc, lead smelting dust in the experiment, Fe2O3 displayed the strongest catalytic oxidation capacity.

Investigation on ore, flux and crucible slag from prehistoric copper smelting at Ambelikou (Cyprus)

1981 ◽  
Vol 1 (1) ◽  
pp. 331-340
Author(s):  
U. Zwicker ◽  
G. Constantinou ◽  
H.G. Buchmolz ◽  
V. Karageorghis
Keyword(s):  
Copper Smelting
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