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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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EnviroGold to reprocess Hellyer Gold Mine tailings

Subsequently, EnviroGold Global will reprocess additional tailings from legacy mining operations located on the Hellyer Mine Site. EnviroGold Global is entitled to 50% of the pre-tax cashflows resulting from the tailings reprocessing operations up to US$24 million/yr; thereafter, EnviroGold Global is entitled to 65% of the pre-tax cashflows.

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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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Assessment of geochemistry and reprocessing capacity of old copper …

Reprocessing flowsheets for copper mine tailings in Chile were developed and costs and revenues of possible products from reprocessing were examined for a rough economic assessment.

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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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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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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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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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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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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 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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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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looks to tailings reprocessing as 777 mine winds …

After 90 years of mining in Flin Flon, Man., Minerals' (TSX: HBM; NYSE: HBM) last operation in the area, the 777 zinc-copper underground mine, will process its last ore this year. But the company's tailings facilities - which store more than 100 million tonnes of material - will live on.

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Copper Recovery and Reduction of …

The flotation tailings obtained from Bor Copper Mine contain pyrite (FeS2) and chalcopyrite (CuFeS2), these sulfide minerals are known to promote acid mine drainage (AMD) which poses a serious threat to the environment …

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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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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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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), …

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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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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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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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Whitehorse Copper Tailings Reprocessing and …

Whitehorse Copper Tailings Reprocessing and Reclamation . Project Assessment 2011-0064 . Proponent: Eagle Industrial Minerals Corp. Assessment Completion Date: June 15, 2012 . Whitehorse Designated Office . Suite 203 309 Strickland Street . Whitehorse, YT Y1A 2J9 : Tel: (867) 456–3200 . Fax: (867) 456–3209 .

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Turning the Tide on Tailings: Creating Opportunities Rather …

Every operation and organization is unique, and it would be unrealistic and impractical to expect that all tailings will be eliminated or repurposed, certainly in the foreseeable future, anyway. According to the Global Tailings Review, in 2020, there were approximately 8,500 active, inactive and closed tailings storage facilities (TSFs ...

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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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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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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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Recycling and Reuse of Mine Tailings | Encyclopedia MDPI

The mine may continue to generate AMD for decades even after it ceases its operation. ... D. Copper tailings reprocessing. RMZ Mater. Geoenviron. 2021, 67, 1–10. ... L. Production of eco-friendly bricks from copper mine tailings through geopolymerization. Constr. Build. Mater. 2012, 29, 323–331. ...

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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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Whitehorse Copper Tailings Reprocessing & …

the tailings deposits at the abandoned Whitehorse Copper Mine site in Whitehorse, Yukon Terri-tory, Canada. The primary objective of the project will be to reclaim the existing tailings areas to reduce their environmental impact and improve the usefulness of the main tailings storage area as a potential industrial area.

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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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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 …