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Prospective environmental assessment of reprocessing and …

The main objective of this study is to construct LCA models applied to copper tailings reprocessing and valorization. We develop life cycle models for an operational mine …

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Mine Tailings Reprocessing Methods — Canadian Critical …

Effective tailings management is critical in mining operations. Understanding its importance and potential challenges helps ensure by-products are safely handled and environmental compliance is maintained. ... For additional tips and guidance, explore related topics such as gold tailings reprocessing and copper tailings reprocessing ...

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Feasibility of re-processing mine tailings to obtain critical …

The case study features Chilean copper mine tailings, to analyze the ones with significant volume among the 740 tailing storage facilities present in the country. Mine tailings deposits that are currently active were analyzed, using geochemical content information provided by The National Service of Geology and Mining (SERNAGEOMIN).

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Copper Mine Tailings — Canadian Critical Minerals Research

Maximize copper mine tailings with smart compliance strategies. Discover techniques for analysis, monitoring, and more. ... By responsibly managing tailings, your mining operation can maintain its social license to operate, fostering trust and positivity within the community. ... Copper Tailings Reprocessing Strategies. Canadian Critical ...

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A review on complex utilization of mine tailings: Recovery of …

Historically, safe containment has been the main goal of tailings management. Disposal has taken place in sizable surface impoundments that are enclosed by dams or embankments, as well as in subterranean workings and unnatural depressions [10], [11].However, the environment and communities are seriously endangered by the inappropriate management …

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Mine tailings: reprocess, recover & recycle

By reprocessing tailings, dewatering them and then storing them in a dry stack, mines can remove some of the economic, environmental and societal risks associated with …

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From Tailings to Treasure? A New Mother Lode

Miners Make Money Reprocessing Tailings. ... De Beers recovered 815,036 carats of diamonds from 6,133,799 tons of tailings in 2013 and expects to continue operations beyond 2030. ... Resources is investigating the technical viability of extracting an estimated million ounces of gold and 60,000 tons of copper left in the tailings at the old Mt ...

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Recovery of Sulfur, Copper, and Gold by Reprocessing Old …

The final concentrate contained 50.7% sulfur, 1.65% copper and 9ppm gold. Reprocessing of old mine tailings can be both economic and environmentally friendly solution through recovering a substantial amount of copper, gold, and sulfur into concentrate, that can be utilized in smelting as a source of energy or fed to sulfuric acid plants.

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Capstone's 'fast follower' philosophy keeps bearing copper …

It is expected that much of the capital required for the Phase II expansion will be earmarked for improvements to the concentrate filtration circuit, thickening and filtering of tailings, while tailings reprocessing – re-leaching (via chloride leaching) ripios from historical VAT leaching operations and coarse/fine tailings – is also being ...

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Toward sustainable reprocessing and valorization of sulfidic …

This study aims to quantify the environmental benefits, impacts, and tradeoffs of large-scale deployments of copper tailings reprocessing and mineral valorization technologies …

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New approaches for extracting and recovering metals from mine tailings

When bioleached aerobically at 30 °C, ∼35% of the copper was extracted from CLC tailings during the first two weeks, but after that time copper concentrations decreased alongside those of soluble iron (Fig. 2 a), and the final copper concentration in the leach liquor was equivalent to 32% extraction from the tailings.

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New Tailings Reprocessing Technology Has …

Tailings, mineral waste products produced by mining operations, are a well-known pollutant requiring remediation. Tailings may be dumped in or near water or transported by wind or water to contaminate the surrounding …

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Stirred-tank bioleaching of copper and cobalt from mine tailings …

Processing tests, adjusted cost models and the economies of reprocessing copper mine tailings in Chile. Metals (2021) View more references. Cited by (21) ... data from 48 Chilean mining operations were analyzed. Since copper is the element whose concentration in Chilean mine tailings is the highest, and vanadium is the main critical raw ...

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(PDF) Recovery of Sulfur, Copper, and Gold by Reprocessing …

Especially this is case in early-stage operations, in which the head grades were higher, and the tailings were higher grade. These tailings can also present a substantial risk to the environment.

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Toward sustainable reprocessing and valorization of sulfidic copper …

Request PDF | Toward sustainable reprocessing and valorization of sulfidic copper tailings: scenarios and prospective LCA | There has been increasing attention recently to reprocessing of mining ...

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Mining copper tailings could answer supply deficits later …

With the copper mine development cupboard remaining bare, both Trafigura Group, the world's top copper trader, and Goldman Sachs Group say prices could hit $15,000 a ton in the coming years.

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(PDF) Prospective environmental assessment of reprocessing …

Cu in tailings vs. ratio of reprocessing to metal-only credits (route B without valorization). MDP, human toxicity, and freshwater ecotoxicity are hardly visible due to low values below 5%.

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REPROCESSING AND TAILINGS REDUCTION

While tailings dam liabilities and falling water resources are affecting the ability of miners to start new mines, or expand existing ones, these issues are strengthening the case for reprocessing …

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Metalkol RTR Clean Cobalt Performance Report

Metalkol RTR, our cobalt and copper tailings reprocessing operation in the DRC, has released its performance report as part of Eurasian Resources Group's commitment under the Clean Cobalt Framework. The annual report, which was assured by independent auditors, PwC, tracks the important progress that Metalkol RTR has delivered against the seven goals …

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BHP tailings challenge: Repurposing copper tailings

Each year, multi-million tonnes of copper tailings are generated by the mining industry's operated assets across North and South America. ... Safe and effective operation and closure of TSFs is a BHP priority. In 2020, BHP launched a tailings challenge with the aim of developing innovative solutions to repurpose copper tailings, which could ...

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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 changes arising in the …

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Reprocessing historic tailings – three Chilean case studies

economical potential for the reprocessing of several metals, such as copper, molybdenum, silver, iron, cobalt, zinc and lead. In this work, three industrial case studies of Chilean historic tailings are discussed. The first case corresponds to the reprocessing of secondary copper from an abandoned tailings dam. The second

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Copper tailings reprocessing

Copper tailings reprocessing Pridobivanje bakra z deponij Damjan Hann* University of Ljubljana, Faculty of Natural Sciences and Engineering, Department of Geotechnology, ... copper mines were in operation in Europe, so several sites with tailings dams are available for research purposes [12, 13]. Sampling was

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Copper tailings reprocessing

In the past, owing to the lower level of technological development and lower copper prices, materials comparable in copper content to the copper ores mined today have ended up in tailings. Since these are already …

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Copper tailings reprocessing

Copper tailings reprocessing 9 The economic balance of tailings reprocessing can also be improved through environmental protection if a government or community is in-terested in …

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How to generate value from tailings with …

In gold, copper sulfide and iron ore tailings, the potential of extracting minerals is an opportunity. Reprocessing tailings to collect the valuable minerals can be a cost-effective...

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Preface to the Thematic Section: Mine Tailings: Problem or

Within SULTAN, both waste rock from the mining operations as well as tailings from the flotation operations to produce copper and zinc concentrates are studied. The size of the operation is obvious from the amount of tailings and waste rock deposited in the Cerro do Lobo Tailings Management Facility, which is estimated to comprise 47 Mton [ 7 ].

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Copper Tailings Reprocessing Strategies — Canadian …

Effective tailings management is crucial for ensuring safety, profitability, and environmental responsibility in mining operations. This section covers holistic strategies for tailings management, particularly focusing on copper tailings reprocessing. Holistic Strategies for Tailings Management

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Making Paving Stones from Copper Mine Tailings as …

To reduce the negative impact on the environment and use the secondary resource of copper mine tailings, this study provides an attractive method for recycling mine tailings into building materials and creating zero-emission tailings, which could be helpful for the production of construction bricks using green raw materials and industrial waste ...

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Historical assessment of metal recovery potential from …

Reprocessing implies that the tailings material is used as a feedstock for producing valuable products such as recovered minerals and metals (Edraki et al., 2014).According to Gordon (2002), mine tailings can be observed as the single largest source of copper in waste deposits in the US copper cycle and Johansson et al. (2013) categorized tailings as valuable …

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Copper recovery from tailings through bioleaching and …

A two-stage mineral bioleaching and metal recovery protocol was developed to extract copper from tailings generated as waste materials were proposed by Falagán et al. (2017), and copper recovery more than 84% was achieved at 45 °C using a defined microbial consortium.

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Past, Present, and Future of Copper Mine Tailings

Past, Present, and Future of Copper Mine Tailings Governance in Chile (1905-2022): A Review in One of the Leading Mining Countries in the World. ... some mining operations have tailings production of more than 100,000 mtpd, led by the ndida Mine, which is the largest copper mining operation in the world, with an approximate production of ...

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The Copper Tailings Solution — Canadian Critical Minerals …

Recycling and Reprocessing: Recycling and reprocessing copper tailings can recover valuable minerals and reduce waste. This not only minimizes the environmental footprint but also enhances the efficiency of the mining operation. For more details, explore our page on copper tailings reprocessing.

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Metalkol RTR

In 2021, Metalkol achieved its design capacity for cobalt production and exceeded budget production for both its products, producing 20 718 tonnes of cobalt and 94 807 tonnes of copper. Unlike conventional mining operations which extract primary ore, at Metalkol RTR legacy copper-cobalt tailings are reclaimed and reprocessed.

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Recovery of Sulfur, Copper, and Gold by Reprocessing …

these operations have generated large amounts of mineral processing tailings. The main objective of this study is to show how valuables can be recovered from chemically and mineralogically …

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