recovery of copper from dust

Recovery of Copper, Lead, Zinc, and Arsenic from Copper Smelting Dust

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 ...

Efficient removal and recovery of arsenic from copper …

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 …

Selective leaching and recovery of bismuth as Bi2O3 from 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 …

Recovery of zinc and copper from copper smelter flue dust. Optimisation

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.

A sustainable approach for recovering copper and zinc from copper …

The recovery of metals without generating secondary waste is a critical focus in the management of hazardous copper smelting dust. To tackle the challenges associated with arsenic-containing solid waste and waste acid generated by traditional recycling processes, we propose a two-stage roasting process that prioritizes low-temperature roasting for …

Hydrometallurgical Processing of Copper Smelter Dust …

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 opera-tions from copper reﬁning processes as illustrated on Fig. 2 [17, 22, 23].

Recovery of Copper from Flue Dust Generated in e …

However, metal recovery from this ﬂue dust has not been extensively studied. The ﬂue dust can contain valuable metals such as gold, silver, copper, and iron. In this study, the ﬂue dust from e-waste was investigated as the potential metal resource for obtaining valuable metals, including copper and iron, using physical and chemical ...

Recovery of Crown Zinc and Metallic Copper from Copper Smelter Dust …

Copper smelter dust is an ultrafine hazardous waste containing various heavy metallic elements. This manuscript proposed a novel method for efficient recovery of crown zinc and metallic copper ...

Selective leaching process for the recovery of copper and …

The purpose of this study was to develop a resource recovery procedure for recovering copper and zinc from dust produced by copper smelting furnaces during the manufacturing of copper-alloy wires. The concentrations of copper in copper-containing dust do not meet the regulation standards defined by …

Recovery of valuable metals from copper smelting open-circuit dust …

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 …

Recovery of metal values from copper smelter flue dust

Semantic Scholar extracted view of "Recovery of metal values from copper smelter flue dust" by J. Ke et al. Skip to search form Skip to main content Skip to account ..., title={Recovery of metal values from copper smelter flue dust}, author={Jia-jun Ke and Ruifang Qiu and Chia-Yung Chen}, journal={Hydrometallurgy}, year={1984}, volume={12 ...

Copper recovery from reverberatory furnace flue dust

Reverberatory furnaces at Sarcheshmeh Copper Complex (south-east of Iran) produces nearly 30 tons of copper dust per day, having copper content being about 25%. Sulfide minerals are the main constituents of the copper dust (Massinaie et al., 2006, Bakhtiari et al., 2008). At present, no appropriate process is in place to extract copper …

Leaching and recovery of zinc and copper from brass slag …

The results of the effect of agitation rate on zinc and copper dissolution by 30% H 2 SO 4 with leaching time 10 min and at 35°C investigated in the range of 60–400 rpm with liquid/solid mass ratio of 5/1 are shown in Fig. 1.The presented data show that the recovery of zinc was increased from 60% at 50 rpm to around 93% at 150 rpm and the …

Recovery of Copper, Lead, Zinc, and Arsenic from …

The phase composition of the dust produced during copper smelting is complex and ﬂuctuates considerably.15 Nevertheless, valuable metals can be recovered from copper smelting dust and recy-cled. In general, the processes for the comprehen-sive utilization and treatment of copper smelting dust resources can be classiﬁed into …

Enhanced recovery of copper from reclaimed copper smelting …

The optimum conditions for copper recovery were obtained (RCA and H 2 SO 4 mass ratio of 1:0.5, leaching temperature of 50 °C, solid–liquid ratio of 40 g/L, ... Hydrometallurgical treatment of copper smelting dust by oxidation leaching and fractional precipitation technology.

Recovery of crown zinc and metallic copper from copper smelter dust …

Copper smelter dust is an ultrafine hazardous waste containing various heavy metallic elements. This manuscript proposed a novel method for efficient recovery of crown zinc and metallic copper from copper smelter dust, including evaporation and condensation of zinc vapor, and super-gravity separation of copper droplets.

Treatment of high-arsenic copper smelting flue dust with high copper …

The treated copper flue dust calcine can be fed back into the smelting furnace for copper recovery, as a high purity arsenic xide byproduct is captured from the off-gas. It can for instance be reduced to elemental arsenic followed by synthesis of arsenic-bearing functional materials and chemicals.

Recovery of Copper and Precious Metals and Separation of …

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 …

Recovery of zinc and copper from copper smelter flue dust

Recovery of zinc and copper from copper smelter flue dust. Optimisation of sulphuric acid leaching. Abstract. Copper smelter flue dust is a residue, rich in zinc, originating from the …

Hydrometallurgical Processing of Copper Smelter Dust for Copper …

Maximum copper recovery from concentrate and dust was achieved using a moderately thermophilic culture.Under optimum conditions, copper dissolution from concentrate reached 87.52% with moderately ...

Resource Recovery and Recycling from Waste Metal Dust

Pre-treatment of Waste Copper Dust (I): Potential of Oxidative Roasting–Density Separation–Sulphuric Acid Leaching Technology for Copper Recovery. Daniel Ogochukwu Okanigbe, Abimbola Patricia Popoola, Abraham Adewale Adeleke; Pages 31-51. Download chapter PDF

Recovery of Copper, Lead, Zinc, and Arsenic from Copper …

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 …

Recovery of copper from melting furnaces dust by …

Particle size analysis of dust by screening and syclosizer showed that about 80% of dust particles are finer than 80 μm. The average copper and iron content of dust was 29.15% and 22.23% and the main copper sulphide minerals were chalcocite (16.36%), chalcopyrite (2.6%), bornite (2.58%) and covellite (0.08%), respectively. In addition to ...

Recovery of valuable metals from copper smelting open …

In this research, an integrated hydrometallurgical process for comprehensive recovery of valued metals and safe disposal of arsenic from copper smelting open …

Recovery of Copper, Lead, Zinc, and Arsenic from Copper Smelting Dust

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 precipitation and carbothermal reduction, were realized in this study to utilize resources from and safely treat copper smelting dust. The binding behavior of …

A Review of the Comprehensive Recovery of Valuable Elements from Copper

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, …

A shortcut approach for cooperative disposal of flue dust …

1. Introduction. Copper smelting flue dust (CSFD) is categorized as a hazardous solid waste due to the characteristics of high pollutants content, low specific gravity, and small particle size (Balladares et al., 2014; Chen et al., 2020; Zhou et al., 2021a).Due to the diverse smelting process of copper, the chemical components of …

Treating waste with waste: Metals recovery from …

XRD and SEM-EDS techniques were employed to reveal phase evolution and surface morphology of the roasted products. Finally, copper-nickel concentrate achieved recovery ratios of 64.37% for copper with a grade of Cu 2.7%, and 67.38% for nickel with a grade of Ni 12.84%.

Recovery of Copper from a Waste Heat Boiler Dust Leach …

The dust collected from the waste heat boiler of a copper plant was leached with sulfuric acid and the leach liquor contained 31.63 kg/m3 Cu, 14.78 kg/m3 Fe, 2.21 kg/m3 Zn, 0.26 kg/m3 Co, 0.09 kg/m3 Ni, and 0.23 kg/m3 Cd. The iron content in the leach liquor was precipitated out using Ca(OH)2 and from the filtrate copper was extracted …