Anode Electrolytic Recovery Of Copper

In this paper, the hydrometallurgical method of recovering Au, Ag, Pt, Pd, Se, and Te is reviewed with copper anode slime (CAS) as an example. At present, more than 80% of …

CAS also has a considerable amount of barium sulfate (barite), between 42 and 77 %, as an impurity due to the casting process of copper anodes (Abdollahy and Shafaei, 2004;Chen and Dutrizac, 1988a).

An electrolytic grade copper cylinder of 3.8 cm diameter and 10 cm length was the cathode, whereas a graphite hollow cylinder with an inner diameter of 8 and 10 cm length was the anode. The geometrical areas of the cathode and anode exposed to the electrolyte were 120 and 251 cm 2, respectively.

Here, we investigate electrolytic alternatives, reviewing the background and recent developments for four classes of electrolytes to directly decompose the most important industrial copper …

Statistically, approximately 90% of tellurium is commercially produced from the copper anode slimes from electrolytic refining of copper, while the rest is extracted as a byproduct of the mining of lead, gold and zinc(Xu et al., 2020).Thus, to meet the growing market demand for tellurium, it is crucial to improve the recovery of tellurium from the anode slimes, which must …

A simple intermediate purification step, which allows the recovery of antimony, through variation of pH, was presented. The electrochemical characterization was the main …

anode handling machines, electrolytic cells, busbars, and electrodes. Our electrolyte circulation and filtration process is ... • Proven technology used by copper refineries around the ... Anode scrap washing machine • Excellent slime recovery • Fully automated and safe operation • Closed washing water circulation and clean, slime-free ...

Electrowinning from aqueous solu-tions using insoluble anodes is a well-established technique for producing pure metals, such as copper, zinc, nickel, cobalt, cadmium, and manganese. The …

Decopperized anode slimes can be processed further in our precious metals plant, in either a pure hydrometallurgical or a combined pyro/ hydrometallurgical process. Our cost-efective and …

Process for Recovery of Critical and Rare Metals from Copper Anode Slimes Shijie Wang Abstract During electrorefining, copper is purified from impure anodes by dissolving the anodes in an electrolyte and plating on the cathodes. All insoluble components are precipitated to the bottom of electrolytic cells in the tankhouse or cellhouse.

Unlike electrolytic refining, electroplating, and electrodepositing for functional materials preparation, the focus of EW research lies in improving current efficiency (CE), reducing energy consumption (EC), mitigating electrode corrosion, and improving the morphology, purity, and recovery of cathodic metals (Costello, 2005).Different metal EW processes can learn from …

The CuSO 4 precipitated through crystallization was of high purity for subsequent supplement for electrolytic copper. It could be concluded that 10 °C was the optimal cooling temperature considering the copper removal effect and cooling cost. ... Rashchi F, Karimi HY (2021) Selective separation and recovery of tellurium from copper anode slime ...

Because tellurium is the scarcest of all the byproducts and mainly recovered from copper sulfides, hydrometallurgical recovery of tellurium from electrolytic copper anode slimes is described. View ...

Conventional direct electrolytic methods can be described with several basic steps, as presented by Allanore [19]. First, the copper sulfide compound must be dissociated into its constitutive anions (S 2−) and cations (Cu 1+ /Cu 2+ and Fe 3+ /Fe 2+ for chalcopyrite). A supporting electrolyte then acts as a solvent for the sulfide feedstock.

1. Introduction. China is the world's largest producer of refined copper, producing 10.1867 million tons in 2021. 1 Copper anode slime is an important byproduct produced in the copper electrolytic refining process, and its yield accounts for approximately 0.2–0.8% of refined copper production. 2 Copper anode slime is rich in Au, Ag, Se, Te, Sb, Bi, platinum groups, …

This report discusses Electrorefining Copper research conducted to increase the rate, deposit purity, and overall efficiency in industrial processes used to electrodeposit and purify metals by increasing substantially the operating current density range and optimizing the deposition process.Traditionally, copper refineries operate electrolytic cells at a current density …

Therefore, the present paper has proposed an oxidizing alkaline leaching process for tellurium and copper recovery from copper telluride out of copper anode slime processing. Alkaline leaching experiments at both atmospheric pressure and high pressure were conducted and compared by using O 2 as the oxidant. Efficient separation of copper and ...

Lots of researchers aim to propose simple, cost-effective and eco-friendly direct electrolytic methods for the recovery of waste Cu scraps and plates [17]. Kumar et al. [15] reported that a suitable anode support system was designed for the electrorefining of compressed Cu scrap and plate rejects with high energy consumption of 1440 kW·h·t −1.

In this paper, a laboratory-scale process which combined electrolysis (EL) and electrodialysis (ED) was developed to treat copper-containing wastewater. The feasibility of …

Two outer sacial aluminum plate anodes and a middle aluminum plate cathode were used as electrodes for electrocoagulation, whereas two outer copper plate cathodes and a middle Ti/Pt …

In this paper, a hydrometallurgical route is described for the recovery of precious metals from copper anode slime of Sarcheshmeh Copper Complex, which is located in southeastern Iran. Copper anode slime is black or gray powder with a particle size less than 200 mesh. Approximately 2 to 20 kg of anode slime is produced per ton of copper cathode.

MOSTmodern electrolytic copper refineries have found it expedient to build and operate a complete secondaries plant for the treatment of the electrolytic slime accumulated in the cells …

Decopperization of anode slimes is the first stage of selenium recovery processes. Several techniques have been developed for decopperization, and the most popular ones are by dissolving after sulfatizing or oxidizing roasting, by leaching in concentrated sulfuric acid solution or by dissolving under oxygen pressure (Hoffmann, 2000, Rao, 2006). ...

This study showed to enhance the recovery of copper telluride from a de-copperizing leach solution at 80–90 °C temperature and linear velocity of 3.7 cm/s. Recycling of copper telluride from copper anode slime processing was reported by Xu et al. and Xu et al. . Tellurium and copper were selectively recovered from copper telluride through ...

Copper anode mud is an important industrial by-product generated at the bottom of an electro-refining tank during copper electrolytic refining, which makes up 0.2%−0.8% of anode copper (Hait et al., 2002).It is regarded as a hazardous solid waste because of the enrichment of toxic and harmful components.

CAS, a by-product of the electrolytic refining of Cu (including primary copper and regenerated copper), is a mixture of various substances that are poorly soluble in the electrolyte during the electrolytic refining of copper anodes (Fahidy, 2006; Gu et al., 1995; Petkova, 1997).

Anode slimes are valuable by-products in the electrolytic copper refinery process. ... Xiao et al. [31] investigated selenium and copper recovery from anode slime by using MnO 2 in dilute H 2 SO 4 ...

Copper Anode slime is collected from electrolytic cell to recover precious metal. Metalcess offers solution of TBRC smelting, lead distillation and gold metal extraction. ... suitable for the recovery of anode slime, PM-containing smelting slag, lead refining dross and all kinds of dust. ... Anode slime is a byproduct of copper or lead electro ...

A research study has been undertaken to develop the fundamentals of a method for the direct recovery of copper from brass (Cu–30 wt.% Zn) scrap based on simultaneous electrolytic dissolution of the scrap at the anode and electrodeposition of copper at the cathode in an acidified sulfate electrolyte.In the present paper, effects of the concentrations of Cu 2+ …

Generally in electrolytic metal recovery, the rate of metal ion transfer in dilute solution is low. To overcome this problem, three-dimensional cathodes in different forms have been investigated by many researchers because they provide high specific surface area and high mass transfer rates [23], [24], [25].Marco et al. studied a very dilute effluent (Cu = 340 mg l −1, …