An investigation of copper and selenium recovery from copper anode slimes
The effects of oxygen flow rate and solution temperature on the decopperization of anode slimes were examined in H 2 SO 4 medium and copper recovery was achieved with an efficiency of 94%. The X-ray diffraction (XRD) analysis revealed Cu 2 Se as a remaining phase of copper in anode slimes after the decopperization process. …
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Separation and Enrichment of Au and Ag from Lead Anode Slime …
The conventional extraction of precious metals from lead anode slime is based on pyrometallurgical and electrolytic processes, which are seriously conditioned by the separation of harmful elements ...
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Separation behavior of metal and oxide: Vacuum …
Anode slime is a multifaceted secondary resource containing various metals that is generated during the process of metal electrolytic refining. According to the various types of electrolytic refined metals, anode slime can be categorized into lead anode slime (LAS), copper anode slime, and tin anode slime [1, 2].
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Studying on the separation of lead and antimony from alloy …
It is studied on lead and antimony of the separation of alloy in lead anode slimes. First, the lead is abstracted by threeply fused salt electrolytic refining with the system (NaCl-KCl-PbCl2) as ...
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Occurrence Behaviors of As/Sb/Bi in Copper Anode Slime …
Anode slimes
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 …
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Hydrochemically separation of gold from Copper Anode Slime …
However, the conventional gold recovery process is cyanidation, due to the recent environmental laws; researchers are looking for alternative methods for the recovery of gold. Furthermore, the copper anode slime is one of the most important secondary sources of gold (about 1200 ppm). So, the main objective of the current work is gold separation …
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Recovery of metals from chloride leach solutions of anode slimes …
A separation process was developed to recover Au(III) from the chloride leach solution of anode slime using selective extraction and stripping step. The anode slime contained Ag, Au, Cu, Ni, Sn ...
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Precious Metal Recovery from Anode Slime-Slag/Dross …
The chloride leaching solution of lead anode slime is used to recover Cu/ Bi/Sb separately. As a conclusion, it is widely acknowledged that the anode slime is complex in content but of high value, and the tendency to utilize the anode slime is to shorten recovery process and production period, reduce circulating loss and increase recovery rate.
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Separation of arsenic from tin anode slime by vacuum …
At present, vacuum distillation is already being used to treat anode slime; Yi et al. studied the method of using vacuum distillation to recover silver and gold from lead anode slime, and realized the recovery of Ag and Au from LAS, with the recovery efficiency of 92.10% and 96.85%, respectively [19].
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Anode slimes
Anode slimes Anode slimes Anodization Ano diz ed aluminium Anodizing Anodizingaluminum... In both the sulfuric and nitric acid processes, the dorn metal must be in shot form prior to treatment to secure a reasonably rapid reaction.A number of steps also may be required in processing the dorne metal to remove miscellaneous impurities, …
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REMOVAL OF BARITE FROM SAR-CHESHMEH COPPER …
To remove the barite from the anode slimes, 10 g - 45 m fraction (+45 m fraction was removed due to the coarse. particles) was dispersed with 1 % Na SiO and …
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Recovery of metals from chloride leach solutions of anode slimes …
In Part 1 of this paper, gold(III) and Sn(II) were recovered from the chloride leach solution of anode slimes by extraction with Cyanex 272 and stripping with (NH 4) 2 S 2 O 3 and NaOH solutions for gold(III) and Sn(II), sequentially. In this work, solvent extraction experiments were conducted to recover Ag(I) and Cu(II) from the Au(III) free …
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Spectrophotometric determination of gold and palladium in anode slimes …
Determination of Au and Pd in anode slime The anode slime samples were dried at 110 C for 2 h. A 50-100 mg amount of the slime was decomposed with 10-15 ml of aqua regia and the solution was evaporated to dryness. The process was repeated twice. 10-15 ml of a mixture containing 0.4 M NaBr, 0.01 M KSCN and 0.05 M HN03 was …
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REMOVAL OF BARITE FROM SAR-CHESHMEH COPPER …
As a results, the most of the barite can be separated from anode slimes on the basis of particle size without significant loss of any more valuable elements. 2 Table 2: Grade …
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Copper Anode Slime
Copper Anode slime is collected from electrolytic cell to recover precious metal. Metalcess offers solution of TBRC smelting, lead distillation and gold metal extraction. ... hedenbergite and amorphous phase matter. Such slag can be concentrated by separation and enrichment to obtain copper concentrate. Address: 4th Floor, Building F, Yuanhn ...
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From waste to wealth: Unlocking the value of copper anode slimes
Copper anode slime is a by-product of copper cathode production, and it is well-known as a source of precious metals (e.g. Gold, Silver, Palladium, ... and prior to the size and gravity separation of barite from precious anode slime particles, sieve analysis was done to achieve the particle size distribution. In order to determine particle size ...
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Sr, Mn, and Zn extraction and separation from zinc …
After zinc electrolysis, two main Sr-containing secondary resources are concomitantly generated, including the zinc electrolytic anode mud and zinc electrolyte crystallization sidement (ZECS). During the deleading procedure, the Sr 2+ and Pb 2+ combine with sulfate radical (SO 4 2- ) to form a sulfate cocrystallization structure of (Pb …
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Comparison of Life Cycle Environmental Impact between …
The cost of silver separation is lowered when ammonia and hydrazine hydrate are replaced with sodium thiosulfate and sodium dithionite in the process of extracting of metallic silver from copper anode slime. The overall environmental impact of two types of copper silver separation processes from anode slime has been …
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Selective Separation and Recovery of Valuable Metals by …
The anode slime produced from copper electrorefining is an important by-product in the recovery of valuable metals, especially precious and rare metals.1,2,3 …
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Separation of tellurium and selenium ions from leach liquor …
Tellurium and selenium isotopes have wide applications in nuclear medicine. In this study, extraction of these elements from copper anode slime is carried out by using the hollow fiber renewal liquid membrane technique (HFRLM). At first batch experiments were carried out by using different concentrations of extractants (TBP, DEHPA, Alamin …
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A Review on the Recovery of Noble Metals from Anode …
impurities report to the anode slimes. Therefore, in order to improve leaching and separation efficiency, the anode slimes are pretreated by some methods depending on the composi-tion of anode slimes.
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Thermodynamics of separation stibium from tin anode slime …
Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated a route to separate Sn, Sb, Bi, and Cu from tin anode slime after leaching with hydrochloric acid.
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A modified sulfation-roasting-leaching process for …
A single batch of copper anode slimes from Sarcheshmeh Copper Company, Iran, was used to perform all the experiments in this research. First, the copper anode slimes were dried in an oven at 100 °C for 24 h. The dried slimes were ground to 38–75 μm. Characterizations of the head sample. Fig. 5 illustrates the XRD pattern of the …
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The treatment of copper refinery anode slimes | JOM
There are numerous viable approaches to the treatment of anode slimes from electrolytic copper refining. Of particular interest in the treatment of slimes are the behavior and …
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Lead leaching mechanism and kinetics in electrolytic manganese anode slime
The main structure of the lead and anode slime was very different; therefore, it separated from the main body of the anode slime. The compact structure between the wrapped lead and external anode slime was destroyed, forming porous network structures in the form of multidimensional tunnels and cracks ( Xia, 2005a, Xia, 2005b ).
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Processing of copper electrorefining anode slime: a review
Abstract. 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, …
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Metal values separation from residue generated in alkali …
Copper anode slime, a by-product collected from the bottom of the electrolytic cells during the refining of copper, is abundant in valuable metals like Cu, Pb, Sb, Sn Se, Te, Au, Ag and PGMs (Kilic et al., 2013). ... 99.93% of selenium, 96.53% of copper, and 96.48% of silver were recovered. After separation of selenium, copper and …
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Recovery of Crude Silver and Valuable Metals from Tin Anode Slime
Tin anode slime is a by-product of the crude tin electrolytic refining process. This study investigated a process to separate silver and valuable metals by sulfidation vulcanization roasting, and vacuum distillation was proposed by exploiting the physical difference (saturated vapor pressure) of metal sulfides. The Gibbs free energies of …
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