No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
No. 1688, Gaoke East Road, Pudong new district, Shanghai, China.
Based on the Eh–pH diagram for the Se–H 2 O system, a new method is proposed for leaching selenium from copper anode slimes using a nitric acid–sulfuric acid mixture. The effects of solid/liquid ratio, HNO 3 and H 2 SO 4 concentrations, leaching temperature, and reaction time on the leaching efficiency of selenium were investigated. Samples were …
Anode slimes is a by-product of the electro-refining process and consists of the insoluble impurities from the anode that fall to the bottom of the refining cell. The anode slimes are recovered from the refining cells, dried in an oven and processed by a metals by-product plant. ... Anode Slimes produced from the Palabora electrolytic copper ...
The plant has its capacity of processing 172 t / M of copper anode slimes and producing 2,500 kg / M of gold, 32,000 kg / M of silver, 40 kg / M of platinum and 400 kg / M of palludium. Read more ...
Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper.
The products are qualified precious metals.The process is mature, involving a relatively small amount of revert and low investment. It is suitable for a treating capacity of no more than 2kt anode slime/a. 10.2Leaching with Downstream Processing by Top …
Fairly complex scrubbing equipment is required to prevent the loss of these gaseous products to the atmosphere. • Soda roasting In this process, copper anode slime is first mixed with soda and then sintered in a rotary kiln/hearth furnace at 450–650 °C. After roasting, the slimes are subjected to stepwise leaching using water, resulting in ...
the Recovery of Noble Metals from Anode Slimes, Mineral Processing and Extractive Metallurgy. Review, DOI: 10.1080/08827508.2019.1575211 ... Copper anode slimes 1 ... the high-quality equipment ...
the treatment of anode slimes from electro lytic copper refining. Of particular interest in the treatment of slimes are the behavior and recovery of selenium. The understanding of the process chemistry involved in the treatment of anode slimes should be aided considerably by recent work on the formation and characterization of slimes.
As for hydrometallurgy of copper anode slime, the process is relatively flexible and smelters adjusts the process as per the characteristics of the raw material. Whereas the lead anode slime is firstly treated with chloride leaching and then …
The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid of copper sulphate solution. As a result of the electro-refining process the anode slime has been gained as secondary product. …
2014 - SUSTAINABLE INDUSTRIAL PROCESSING SUMMIT/SHECHTMAN INTERNATIONAL SYMPOSIUM Volume 3: NON-FERROUS,IRON AND STEEL Edited by Florian Kongoli, FLOGEN, 2014 ANODE SLIME GAINED DURING ELECTROLYTIC REFINING PROCESS OF SECONDARY COPPER ANODES Nurten Deva1, Musa Rizaj1, Ismail Duman2, Florian …
The copper anode slime, a byproduct of the copper electro-refining process, is a 38 valuable secondary resource containing valuable elements such as Cu, Se, Sb, Ag, Au
The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid ... is used, which is realized with the help of D8 Advance Bruker AXS equipment. The anode slime ...
Copper anode slimes, the by-product of the copper electrorefining process, have been the subject of extensive investigation for recovering precious metals viz., Au, Ag, Pt and Pd, in addition to ...
The total global copper production exceeds 25 million tons per year, and it is forecasted to increase by up to 20% by 2035. The copper cathodes are produced through the electrorefining of anodes, and 5–10 kg of anode slime is produced per 1 ton of copper as a by-product [1, 2].The copper anode slime has the highest concentration of precious metals (Ag, Au, Pt, Pd, and Rd) …
Abstract Copper anode slimes, the by-product of the copper electrorefining process, have been the subject of extensive investigation for recovering precious metals viz., Au, Ag, Pt and Pd, in addition to being the main source of rare/energy-critical elements such as Se and Te. There have been various approaches aiming at the development of extraction …
Originally developed for the treatment of copper electrorefining anode slime, the Hydrometallurgical Precious Metals Process can also be used to process other raw materials …
Integrated process for recycling copper anode slime from electronic waste smelting. J. Clean. Prod., 165 (2017), pp. 48-56, 10.1016/j.jclepro.2017.07.094. ... Recovery of metals from waste electrical and electronic equipment (WEEE) using unconventional solvents based on ionic liquids. Crit. Rev. Environ. Sci.
The advantages of atmospheric oxidation acid leaching are simple equipment and operation process, less sulfuric acid consumption and no silver loss in anode slime. ... The copper anode slime was dried at 80 °C for 24 h and followed by pestling and screening to gain a powder of fewer than 80 μm. The phase transition was acquired by an X-ray ...
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 …
The products obtained from the novel route of sulphation roasting-carbothermal reduction-supergravity separation for processing copper anode slime developed in the present study are shown in Fig. 9. First, a calcine was obtained using the sulphation roasting process, then the crushed calcine (b) was well-mixed with graphite powder and pressed ...
Copper anode slimes, the by-product of the copper electrorefining process, have been the subject of extensive investigation for recovering precious metals viz., Au, Ag, Pt and …
The purpose of the copper anode slime treatment is to extract precious metals (Xiao et al., 2018a; Yang et al., 2019; Xing and Lee, 2017), including pretreatment, pyrometallurgical process, hydrometallurgical process, and purification process of precious metals.The purpose of the copper anode slime pretreatment process is to remove as many …
Refining of silver and gold as products from gold mining or the smelting of copper anode slime, is often the final process of these metal production processes (Shi and Ye, 2013;Bard and Sobral, 2008).
The hydrometallurgical processing of copper anode slimes has the advantages such as costs are relatively low when compared to those for a smelter, process may be applied to small and large ...
The use of copper anode slime (CAS) for the removal of lead, bismuth, and arsenic is the key to recovering precious metals. In this paper, vacuum differential gravimetry experiments combined with thermodynamic equilibrium calculations reveal the effects of the temperature, system pressure, and carbon concentration on the interactions among Pb, Bi, …
A hydrometallurgical process is provided for the recovery of tellurium as elemental tellurium powder from copper refinery anode slime containing high amount of lead. The process involves the removal of copper and lead from anode slime followed by the recovery of tellurium as elemental powders. An economical and environment friendly process is provided for producing …
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 ...
Hydrometallurgical processing refers to the method of obtaining gold or silver using wet processes, where all impurity removal steps are conducted in aqueous solutions.Over the past three decades, the hydrometallurgical processing of anode slime has seen significant development and achieved breakthroughs in industrial applications.
Anode slime is the insoluble product deposited at the bottom of the electrorefining tank during electrorefining of copper. It generally contains Cu, Ni, Se, Te, Ag, Au, platinum group metals (PGM), Pb, Ba, Fe, etc. Owing to the presence of valuable metals and metalloids in the anode slime, numerous approaches have been made by the researchers to extract them …
