No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
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Copper smelter flue dust is a residue, rich in zinc, originating from the pyrometallurgical process of copper, and constitutes a potential raw material for zinc production and its leaching with sulphuric acid at constant pH is studied. ABSTRACT Copper smelter flue dust is a residue, rich in zinc, originating from the pyrometallurgical process of copper, and …
The separation of Cu, Pb, Zn, and As from copper smelting dust through oxidative alkali leaching and sulfide precipitation, as well as the subsequent recovery of As through calcification ...
arsenic, zinc, indium, and copper are mainly volatilized to dust. The main problem of this process is the low recovery of valuable metals [1–6]. The second process treats copper smelting dust by leaching, arsenic, zinc, indium, copper are leached to liquid and lead, bismuth, tin are left in slag for the pyrometallurgical processes.
Wu et al., [13] developed a procedure for recovering copper and zinc from copper smelting dust by two-stage acid leaching. In the first stage, zinc extraction reached higher than …
The separation of Cu, Pb, Zn, and As from copper smelting dust through oxidative alkali leaching and sulfide precipitation, as well as the subsequent recovery of As through calcification ...
A selective acid leaching process was used to recover copper and zinc from dust produced by copper smelting furnaces during the manufacturing of copper-alloy wires and indicated that zinc extraction efficiency was higher than 95%. Expand
ABSTRACT The flue dust generated during the processing of e-waste is valuable as a secondary metal resource. In this study, a process of selective metal recovery from flue dust through the magnetic separation and the leaching process were developed. All the experiments were carried out at atmospheric pressure below 60°C. A continuous four-step process was …
The current treatment process for the comprehensive utilization of Zn-rich dust mainly focuses on the recovery of elements with high contents such as zinc and lead, and the recovery of bismuth has ... (2015) Selective leaching and recovery of bismuth as Bi 2 O 3 from copper smelter converter dust. Sep Purif Technol 142:116–122. https://doi ...
150 kg solid/m 3 and 4–6 h of leaching under oxidizing conditions. In comparison, the leaching of the copper smelter dust was relatively easy. Bzura (1979), studied the recovery of all metal values from brass foundry skimmings containing >85% metals, primarily copper and zinc in alloyed form and zinc oxide.The skimmings were crushed, ball milled and reacted with HCl …
A nitrate leachate containing Cu(II), Ag(I), Ni(II), Mg(II), and Al(III) was obtained during the leaching of industrial dust, which arises during the pyrometallurgy of spent camera modules. To separate and recover Cu(II) and Ag(I) from the leaching solution, solvent extraction experiments using 5,8-diethyl-7-hydroxydodecan-6-oxime (LIX63) were conducted. LIX63 was …
Smelter dust from copper extraction plants contains copper (Cu), which is both an economic loss and a pollution issue. There is therefore a need for techniques to recover Cu …
In this research, an integrated hydrometallurgical process for comprehensive recovery of valued metals and safe disposal of arsenic from copper smelting open-circuit …
The flue dust is the main output of arsenic in copper concentrate smelting, which contains around 60% of total input arsenic with a high arsenic content of 5–20% and fine particles (Jarošíková et al., 2018, Balladares et al., 2014, Ettler et al., 2014), and easily contaminates the surrounding atmosphere, soils, and even groundwaters (Ettler, 2016).
Flue dust from secondary copper smelting (FDSC) is a hazardous waste as well as a secondary resource due to the high content of Cl, Br, and valuable metals (Pb, Cu, Zn, Cd). Herein, a novel process, combined low-temperature roasting, water leaching, and mechanochemical reduction, was developed for recovering metals from the FDSC.
In this work, we developed a new method to handle CSD, which involves chlorination roasting, cascade condensation, and oxidation roasting. This method allows for …
A selective acid leaching process was used to recover copper and zinc from dust produced by copper smelting furnaces during the manufacturing of copper-alloy wires and indicated that zinc extraction efficiency was higher than 95%. The purpose of this study was to develop a resource recovery procedure for recovering copper and zinc from dust produced by …
A novel process for comprehensive recovery of arsenic and antimony from arsenic-rich copper smelter dust was achieved by hydrochloric acid leaching, reduction recovery of arsenic by sodium hypophosphate and recovery of SbCl 3 by continuous distillation. The leaching efficiency of As and Sb was over 97.5% and 96.8% under suitable conditions of ...
The smelting technology and flue dust treatment have an influence on the physical and chemical characteristics of flue dusts collected in copper smelting. We characterized flue dusts from a Bottom-Blowing Bath Smelting (BBS) process and from a Flash Smelting (FS) process by determining their comprehensive physical, chemical, and mineralogical …
Copper Smelter Dust (CSD) Copper smelter dust is the product consisting of SO 2, N 2, O 2, water vapor, heavy metals and other impurities recovered from exhaust gas streams found in furnaces, flues and settling chambers as a result of roasting, smelting and converting operations from copper refining processes as illustrated on Fig. 2 [17, 22, 23].The basic …
Copper smelter flue dust is a residue, rich in zinc, originating from the pyrometallurgical process of copper, and constitutes a potential raw material for zinc production. ... Recovery of zinc and copper from copper smelter flue dust. Optimisation of sulphuric acid leaching Environ Technol. 2020 Apr;41(9):1093-1100. doi: 10.1080/09593330.2018. ...
The flue dust generated during the processing of e-waste is valuable as a secondary metal resource. In this study, a process of selective metal recovery from flue dust through the magnetic separation and the leaching process were developed. All the experiments were carried out at atmospheric pressure below 60°C.
The efficient removal and recovery of arsenic from copper smelting flue dust have received widespread attention due to its extremely high toxicity and carcinogenicity. In this research, a roasting method used for treating the dust at a relatively low temperature (300–400 ℃), with adding sulfuric acid and bitumite, was proposed, in which the reduction of As(Ⅴ) and …
The volume of CSO dust in typical copper smelting-converting operations has amounted to about 800,000 tons a year. This dust is an important source of valued metals, such as Cu, Zn, Pb and Bi (Chen et al., 2012). ... after copper recovery and arsenic removal. The recovery of Zn and Cd was performed simultaneously by neutralization precipitation ...
Based on this school of thought, this chapter discussed, among other things, the resource recovery and recycling from waste copper dust (WCD). One thing that was noticed is that SA WCD has a ...
Recycling of valuable metals not only increases the economic potential of smelting dust, but also helps to solve the disposal and environmental problems of heavy metals (such as lead, chromium and cadmium) entrained in the dust (Han and Holappa, 2003; Salihoglu and Pinarli, 2008).Guo et al. (2015) used a mixed NaOH–Na 2 S leaching system to extract …
Secondary copper recovery is gaining more attention due to the shortage of primary minerals. In China, the secondary copper industry occupies a very important ... Currently, the raw materials for the secondary copper industry include copper scrap, electroplating sludge, copper flue dust, waste electrical and electronic equipment, and copper ...
Bacterial copper recovery from concentrate and furnace dust by the use of GeoCoat procedure at Sarcheshmeh Copper Complex. MS Thesis, Shahid-Bahonar University of Kerman, Iran. Massinaie, M., Oliazadeh, M., Seyed Bagheri, A.S., 2006. Biological copper extraction from melting furnaces dust of Sarcheshmeh copper mine. Int. J. Miner.
The total recovery of copper from dust into copper precipitate is 90%. Lead losses are mainly associated with its losses with slag (up to 5%), while copper losses primarily attributed to its losses with the lead cake. The accumulation of lead-rich slags on the territory of the plant results in the occupation of extensive areas. The circulating ...
The separation of Cu, Pb, Zn, and As from copper smelting dust through oxidative alkali leaching and sulfide precipitation, as well as the subsequent recovery of As through …
Adhering to this legislation often presents a challenge, because most copper mining businesses work on a linear economic model, which is rather straightforward because it is based on extracting mineral resources and converting them into a product that eventually becomes waste (i.e., "taking, manufacturing, and wasting") [15,16,17].This economic model is distinct from the circularity …
