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.
Copper smelting open-circuit (CSO) dust contains various valuable metals, such as copper, lead, and zinc, as well as undesirable toxic elements such as arsenic. Thus, the comprehensive recovery of valuable elements from CSO dust is highly significant from both economic and environmental perspectives. In this review, …
PMID: 30192727. DOI: 10.1080/09593330.2018.1521473. Abstract. Copper smelter flue dust is a residue, rich in zinc, originating from the pyrometallurgical process of copper, …
This economic model is distinct from the circularity model, which contains ideas like "resource recovery and recycling; a system that minimizes the use of resource inputs that result in waste, pollution, and carbon emissions [ 17, 18 ].". Given the aforementioned, Evert Swanepoel, the executive chairperson of the Copper …
Because of the higher content of Cu in the dust, it makes economic sense to recover it in the first place. The Cu recovery technique which consists of a H 2 SO 4 leaching followed by an appropriate recovery method has been practiced by several smelters throughout the world. The process parameters vary from smelter to smelter …
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 ...
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 …
It can be seen from Table 1 that PbSO 4 is the major component in the copper smelter dust which is also the major component in ... Characterization of copper smelter dust for copper recovery. Proc Manuf 7:121–126. Google Scholar Montenegro V, Sano H, Fujisawa T (2013) Recirculation of high arsenic content copper smelting dust …
Zhao et al. (2015) were studied sulfation roasting with Na 2 SO 3 as sulfation agent and without any agent addition to recover copper from the CuFeS 2 concentrate. They were determined as the ...
Impurity metal removal and copper recovery can be done, for example, by leaching the flash smelting furnace boiler, converting furnace boiler, and ESP flue dust. Impure wash acid and acidic …
High-value high-copper alloy. Pig iron. Zn-rich flue dust as raw material for Zn production. Slag free of iron, alkalis, and heavy metals, suitable as a construction material. Recovery of Alumina from Bauxite Residue. In the production of aluminium, almost twice as much bauxite residue (BR) as aluminium metal is produced.
A Review of the Comprehensive Recovery of Valuable Elements from Copper Smelting Open-Circuit Dust and Arsenic Treatment JOM 10.1007/s11837-020-04242-0
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 …
@article{Wei2021ComprehensiveRO, title={Comprehensive recovery of valuable metals from copper smelting open-circuit dust with a clean and economical hydrometallurgical process}, author={Gao Wei and Bin Xu and Junkui Yang and Yong-bin Yang and Qian Li and Zhang Bangsheng and Guiqing Liu and Yongpeng Ma and Tao Jiang}, …
A novel process with high selectivity and metals recovery is developed for treating copper smelting flue dust. High-purity As 2 O 3 (99.04%), lead ingot (99.95%), metallic copper (94.16%), and bismuth (99.20%) are recovered. The estimated profit for …
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 aci …
The Kolar Gold fields are about 100 kilometres from Bangalore. Operated by the Bharat Gold Mines Limited (BGML), a public sector undertaking, the KGF was the world's second deepest gold mine at a depth of 3,000 metres. The mines remained active for 121 years before it experienced an unsystematic closure on February 28, 2001.
Therefore, there is a need to recover the metals from copper smelter dust which is essential for economic reason, for reducing environmental hazards and also for …
Zinc recovery is over 99% and iron recovery over 98%. The content of heavy metals (Zn + Pb + Cu) in glassy slag is below 0.2%, which ensures very low leachability. Smelting parameters.
A process flow chart for the recovery of Cu(II) and Ag(I) from the nitrate leachate of the target industrial dust was also provided. McCabe-Thiele plot for Cu(II) extraction using 2 mol/L LIX63.
The smelting factory of Sarcheshmeh Copper Complex in Iran produces about 50tons per day of copper dust containing 36% Cu, 22.2% Fe and 12.2% S. The dust is currently recycled to the smelters.
Suggested Industrial Vacuums for Recovery of Toxic & Combustible Dust. PrestiVac HEPAPlus* Vacuums are specifically designed to safely vacuum toxic dusts. Equipped with a Certified Absolute HEPAPlus* filter with an efficiency of 99.995% on 0.2 micron so there is no risk of exposure or contamination for the operator or the environment.
2 Citations. Abstract. Low-grade copper concentrates containing increased impurities such as As, Pb, and Zn are used in copper production. In copper smelting …
Prater and wells49 have patented a process for copper recovery from CSO dust. In their invention, the dust was leached in an autoclave in the conditions of 140 °C, …
of pyrometallurgical recovery of lead and bismuth from preliminary desulfated copper converter flue dust into a metal phase, by carbothermal reduction in a soda ash smelt. EXPERIMENTAL The object of this research is the converter dust, which is a white powder with very low bulk density and low fluidity. The chemical composition of this material
Recovery of ferrochrome values from flue dust generated in ferroalloy production - A case study March 2011 Mineral Processing and Extractive Metallurgy IMM Transactions section C 120(1):61-63
Recovery of zinc and copper from copper smelter flue dust. Optimisation of sulphuric acid leaching. Copper smelter flue dust is a residue, rich in zinc, originating …