Tellurium recovery from copper telluride precipitate generated from anode slime processing was carried out under the optimal process conditions illustrated in Fig. 3. The mass balance of copper and tellurium in the solid and liquid phases for each step …
In summary, the overall recovery efficiency of tellurium from copper telluride reached as high as over 91% and the mass balance of either tellurium or copper accords well for both the solid and liquid phases in each procedure of the whole recovery process. Download : Download high-res image (214KB) Download : Download full-size image; …
The process flow sheet for the recovery of tellurium and copper is given in Figure 4. This study summarizes that the copper supply chain can supply tellurium …
In the process, it is reported that tellurium was oxidized to insoluble Te (VI) compound while selenium and arsenic were both dissolved in solution (Wang, 2011). ... The recovery of tellurium from the aqueous solution was finally realized by reduction with Na 2 SO 3 under the parameters of Na 2 SO 3 /Te mole ratio of 3.2, temperature of 85 °C ...
The recovery of tellurium from Te-cement obtained during the processing of copper anode slimes was carried out by a series of hydrometallurgical processes, i.E. leaching Te-cement in NaOH solution ...
There are two main problems for copper telluride slag recovery. First, the process is long, and some metallurgical enterprises directly sell copper telluride slag cheaply, of which the tellurium recovery only reaches 70%(Wang et al., 2003; Wang, 2011).Secondly, most tellurium extractions are carried out using acid and alkaline …
DOI: 10.1016/J.HYDROMET.2018.02.009 Corpus ID: 103781861; Recovery of tellurium from aqueous solutions by adsorption with magnetic nanoscale zero-valent iron (NZVFe) @article{Yu2018RecoveryOT, title={Recovery of tellurium from aqueous solutions by adsorption with magnetic nanoscale zero-valent iron (NZVFe)}, author={Hanqiang Yu …
The continuous removal and recovery of tellurium in an up-flow anaerobic granular sludge bed reactor were reported to recover Te from very dilute solutions (Mal et al. [21]). Recovery of tellurium from de-copperizing leach solution of copper refinery slimes by a fixed bed reactor packed with copper cuttings was studied [22]. This study …
However, the reaction process is more complicated for most practical experiments, and experimental verification of the reaction probability has been of considerable importance for the recovery process of tellurium and bismuth. Therefore, selective sulfidation experiments were carried out with Bi 2 Te 3 waste, and S was used …
It is observed that the dissolution of tellurides occurs rapidly during the first 15 min, reaching a tellurium recovery greater than 50%. It is also observed that for the first 60 min, the recovery of tellurium is fast and then it remains approximately constant. Tellurium recovery is 78.05% in 60 min and after 6 h is close to 80%.
Tellurium in the Cu-depleted solution was finally recovered by reduction with Na 2 SO 3 under the process parameters of Na 2 SO 3 /Te mole ratio of 3.2, temperature of 85 °C, and reaction time of 2.0 h, and a tellurium recovery of around 95% was achieved. The produced elemental Te particles generally have uniform phase …
DOI: 10.1016/j.jclepro.2020.122723 Corpus ID: 224848836; An environmental-friendly process for recovery of tellurium and copper from copper telluride @article{Liang2020AnEP, title={An environmental-friendly process for recovery of tellurium and copper from copper telluride}, author={Xu Liang and Yanhang Xiong and …
The comprehensive recovery of tellurium exceeded 90% during this process and its purity reached 99.83%. The converted copper oxide could then undergo the copper smelting pro-cess for further copper extraction. This study conrmed the process as a sustainable and highly ecient method to extract
Copper telluride is a sort of solid waste generated from copper anode slime processing, from which the recovery of copper and particularly the high-value element of tellurium always encounter technical difficulties due to the complex physicochemical properties of tellurium. In this study, an efficient and compact process for copper …
The rigorous environmental requirements promote the development of new processes with short and clean technical routes for recycling tellurium from tellurium-bearing sodium carbonate slag. In …
Herein, a clean and efficient process was proposed to separate and recover tellurium and copper from high value-added industrial copper telluride slag. This process includes the separation of Cu and Te by soda smelting, leaching and precipitation to prepare TeO2, and the recovery of elemental Te by vacuum carbothermal reduction.
In the pyrometallurgical treatment, tellurium can be converted into soluble or insoluble forms according to the needs of subsequent processes. Then, tellurium is recovered in the hydrometallurgical process. However, due to the long process, the recovery of tellurium is usually <70% (Ludvigsson and Larsson, 2003; Wang, 2011).
Tellurium, from Copper Anode Slime to High Purity Product: A Review Paper. ALIREZA MAHMOUDI, SINA SHAKIBANIA, MOHAMMAD MOKMELI, and FERESHTEH RASHCHI. Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery …
Recovery process, and recycling situation of Se, Te, Au, Ag, Pt, and Pd are reviewed. ... or sodium carbonate to adjust the pH of the Cu separation solution after leaching of CAS to 3–4 so as to obtain tellurium dioxide precipitation. The process is relatively mature in terms of industrial application; however, a large number of sodium …
DOI: 10.1016/j.hydromet.2020.105436 Corpus ID: 225490477; Recycling of copper telluride from copper anode slime processing: Toward efficient recovery of tellurium and copper @article{Liang2020RecyclingOC, title={Recycling of copper telluride from copper anode slime processing: Toward efficient recovery of tellurium and copper}, author={Xu Liang …
The process exhibited considerable advantages over conventional processes, including high Te recovery, no waste gas, effective resource utilization, fast refining, good working conditions, energy savings, and clean production. The recycled tellurium and bismuth sulfide are suitable for the next purification process.
The cupellation process has been used by Metallurgie Hoboken, Belgium and Cerro Corporation, Oroya, Peru to treat copper refinery slimes, where lead refinery has been located at the same plant. However, the tellurium recovery was said to be poor (Cooper, 1971). At Metallurgie Hoboken, the slimes that have been decopperised by …
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 …
The Tellurium Recovery Process. Kennecott Utah Copper operates the concentrator plant, smelter, and refinery at Bingham (Figure 6). Ore from the mine is transported on a conveyor belt to the Copperton Concentrator, where the material is ground and processed to separate waste from ore-bearing minerals. Copper concentrate is …
Sustainable recovery of tellurium (Te) from large-scale wastewater is of great importance to offer stable supply of this strategic element. However, the concentration of tellurium is very low, and there is usually coexisting metallic ion of copper. In this study, a novel selective and efficient electrochemical extraction of Te and Cu from HCl …
Abstract A novel process for recovery of tellurium (Te) from spent Te electrolytes by cyclone electrowinning was developed. The effects of current density, electrolysis time, flow rate of the electrolyte (FRE), electrolyte temperature and cathode substrates on current efficiency (CE), tellurium recovery, cell voltage, energy …
Tellurium is a rare metalloid that is vastly produced from copper anode slime, which is a by-product of the copper electrorefining process. Choosing the proper recovery method strongly depends on ...
