Recovery of Iron from Copper Tailings Using a Combined
As the world's largest producer of refined copper, China accounts for about 1/3 of the world's production. At present, China's refined copper is mainly produced by pyrometallurgy [1,2,3].The annual discharge of copper slag exceeds 10 million tons according to the calculation of 2.2 tons of copper slag per ton of refined copper …
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Copper tailings reprocessing
years. Total copper production from 1900 until the end of 2020 was about 740 million tons [5, 6]. In a situation in which global copper de-mand is growing and copper prices are steadily increasing, reprocessing copper tailings is be-coming an increasingly logical decision [7, 8, 9]. In most of the copper tailings deposited in the
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(PDF) Tellurium Enrichment in Copper Tailings: A
Prior to processing, a systematic and comprehensive characterization study of copper tailing (CT) samples was conducted to examine the deportment of Te minerals in different mineral phases and to ...
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Renewable ammonium chloride-induced calcium leaching of gold and copper
Renewable ammonium chloride-induced calcium leaching of gold and copper tailings and selective preparation of vaterite CaCO 3 by CO 2 mineralization. Author links open overlay panel Hengshuang Wang a, Zijing Lu a b. Show more. ... This study introduced a high-value green processing solution for copper tailings to prepare high …
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Mining copper tailings could answer supply deficits later …
There is an estimated total of 217,330,652,000 m 3 of tailings in storage globally, with copper accounting for ... its "more energy-efficient process to extract copper from regular- and lower ...
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Mine tailings: reprocess, recover & recycle
Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in …
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Highland Valley Copper Mine, Logan Lake, BC, Canada
The Highland Valley Copper Mine is located just outside the town of Kamloops in British Columbia, Canada. The mine produces copper (435,000 tonnes in 2003) and molybdenum (6405 tonnes in 2003) concentrates. The tailings pumped to the Valley Impoundment in 2003 were 48.5 million tonnes. Valley Impoundment
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Enhancing solid-liquid separation performance of copper tailings …
To better highlight the changes in pore space of copper tailings flocs under different reagent conditions, threshold-based image processing analysis was conducted using ImageJ. The blue coloration was defined as the pore space within the floc structure by the over/under method, as shown in Fig. 12 .
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2. Processing of Sulphide Ores and Mine Tailings: …
The main chemical reagents used in the metallurgical flotation process of copper sulphide minerals and present in copper mining tailings are presented below [2,47]. The following types of reagents are disclosed: (i) acids, (ii) alkalis or pH regulators, (iii) modifiers, (iv) collectors, (v) ing agents, and (vi) flocculants ( Table 1 ).
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A Review of the Cyanidation Treatment of Copper-Gold Ores …
The cyanidation of copper flotation tailings containing sulfides for gold recovery is an example of the formation of cyanide complexes with copper and silver during the leaching process [11,12]. Figure 4 shows the MLA Automated Minerology image of an ore sample from a copper mine in Mexico, containing chalcopyrite and bornite as copper sulfide ...
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Bioleaching of heavy metals from metal tailings utilizing …
The tailings will be released and migrated into water bodies and soil through oxidation, weathering, and other effects in the process of tailings storage. Heavy metals cause serious pollution to the surrounding water and soil environment, pose a threat to farmland and other ecosystems, and human health is also endangered (Nguyen et al., …
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Processing Tests, Adjusted Cost Models and the …
The copper grade is substantially higher compared to the average copper grade in tailings from the 1930s of 0.33% and far above the average of SERNAGEOMIN's cadaster of mine tailings (sampling only the first meter), which gives copper grades of 0.27% for inactive and abandoned tailings <10 M t . The investigated TSF was in operation between ...
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BHP tailings challenge: Repurposing copper tailings
The second finalist is a consortium comprising Americas Tailings Inc. and Advancing Materials Processing Inc., which aims to produce fertiliser from copper tailings. By the …
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Low Energy Process Development for Chibuluma Copper Tailings
Copper froth flotation tailings containing 1.19 and 0.97 wt% total and acid-soluble copper, respectively, from Chibuluma mines in the Copperbelt province of Zambia were characterized by SEM and XRD techniques. ... Low Energy Process Development for Chibuluma Copper Tailings. In: Iloeje, C., et al. Energy Technology 2024. TMS 2024. …
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Recent practices in mine tailings' recycling and reuse
Copper-rich tailings can be turned into lightweight ceramics by sintering iron tailings mixed with fly ash and sewage sludge in paint making. Tailings can be used as additives for soil in road construction in the construction industry. ... After this process, the tailings are brought into a homogeneous state and mixed with water and activator ...
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Potentially Exploitable Reprocessing Routes for Recovering Copper …
Abstract This research aimed at recovering metals retained in the tailings from the flotation of copper (Cu) and cobalt (Co) ores conducted at the New Concentrator in Kipushi (NCK). Metals retention in the tailings (0.73% Cu and 0.37% Co) increased due to the removal of the gravity separation section from the processing circuit together with …
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(PDF) Copper flotation tailings processing
Copper flotation tailings processing - Hydrometallurgical alternatives. June 2018; ... The subject of the research was a sample of pyrite flotation tailings containing copper, 0.26%, zinc, 0.22% ...
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Processing Tests, Adjusted Cost Models and the …
The copper grade is substantially higher compared to the average copper grade in tailings from the 1930s of 0.33% and far above the average of SERNAGEOMIN's cadaster of mine tailings (sampling only the first …
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Selective Process Route to Recover Magnetite from …
Copper mine operations consistently generate a large quantity of tailings after their concentration processing. These tailings are either piled up or stored in a dam, where both alternatives of disposal lead to environmental impacts. The dam copper tailings have a huge potential for by-product production thus improving sustainability …
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Element cycling and secondary mineralogy in porphyry copper tailings …
2.2.. Piuquenes tailings impoundment, La Andina porphyry copper deposit, ChileRegional geology and ore geology.The Rı́o Blanco-Los Bronces ore body is a giant copper–molybdenum porphyry system with >50×10 6 tonnes grading 1.0 and 1.5% Cu (Serrano et al., 1996).The deposit is located high on the west flank of the central Chilean …
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Copper-processing technologies: Growing global …
If the potential production uplift is extended across all metals produced from sulfide ores using a similar production process, while valued at forecast market prices (minus additional processing costs), 3 Based …
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to deliver copper tailings dewatering plant unit in …
has been awarded an order for the delivery of sustainable tailings dewatering technology to an operating copper mine in Africa. The total value of the order exceeds €20 million. One fourth of the value has been booked in Minerals segment's 2024 second-quarter orders received, and the rest ...
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Estimating processing cost for the recovery of valuable …
The results show that a plant to be installed in Chile to process copper tailings for the recovery of vanadium pentoxide using hydrometallurgical processes would generate the processing cost of 6,218 US$/t of V 2 O 5. It is assumed that this plant would have annual production of 4,400 t, using average ore grade of 0.26%, and a recovery …
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The Challenges and Prospects of Recovering Fine Copper …
Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings. However, a significant amount of copper is lost into tailings during the processing; therefore, tailings can be …
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Toward sustainable reprocessing and valorization of sulfidic …
Copper tailings are produced from different mines, and thus it is important to fully characterize the quality and quantity of copper tailings at each site. ... Feasibility of …
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Experimental Study of the Sulphatizing Roasting of Flotation Tailings …
The present study focuses on the experimental investigation of sulphatizing roasting of flotation tailings from copper slag processing using iron (II) and (III) sulfates followed by water leaching. The effect of temperature, duration of sulphatizing roasting, as well as the amount of iron sulfates on the conversion of zinc, copper, iron and ...
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Improving Flocculation Performance of Copper Flotation Tailings …
The dewatering of tailings is one of the serious challenges that the mining and mineral processing industries have encountered internationally. Solid–liquid separation methods are applied to wastewater, which generally consists of fine particles and water; fine particles are settled in thickeners by the flocculation method and the cleaned water is …
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Research on leaching kinetics and reactivity evaluation of copper …
1. Introduction. Copper tailings are the fine-grained remains of copper ore produced through a series of processing techniques, and belong to the by-products produced during the mining process of mineral resources [1].It is characterized by a high SiO 2 content and a mineral composition dominated by quartz and silica-aluminates [2].As of 2022, the …
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Tellurium Enrichment in Copper Tailings: A Mineralogical …
As the global demand for tellurium (Te) increases, it is crucial to develop efficient recovery methods that consider existing supply streams. This research …
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Recovery of pyrite from copper tailings by flotation
The concentration of sulfide copper minerals by means of flotation generates large volumes of tailings. It is estimated that one hundred twenty-five tons of tailings are generated per one ton of produced copper, and its generation is on a continuous rise because of the decrease of the copper grades [1].On the one hand, the tailing is …
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