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  • Atalaya Mining halts tailings facility at Rio Tinto copper

    Atalaya Mining has temporarily suspended usage of tailings facility at its Rio Tinto copper project in Andalucía, Spain, after receiving an information request from the Junta de Andalucía. The company provided all relevant reports to the Junta and hopes that it will result in the lifting of the provisional suspension soon.

  • FQM’s Cobre Las Cruces to fill International Mining

    First Quantum Minerals’ majority-owned Cobre Las Cruces mine looks to have pushed out production for at least another year after devising a way to reprocess tailings at the copper operation in Spain.

  • Spain’s OHL to oversee El Teniente’s tailings facility

    Spain’s OHL to oversee El Teniente’s tailings facility. Valentina Ruiz Leotaud which is the world’s largest underground copper mine and the sixth biggest by reserve size,

  • Boliden Ltd Zinc, Copper, Lead and Silver Mine Mining

    Nov 30, 2020· Los Frailes zinc, copper, lead and silver mine is approximately 45km west of Seville in southern Spain. The mine was operated by Boliden Apirsa SL, then a wholly owned subsidiary of Boliden Ltd, but following a major tailings dam failure in 1998, the operation was initially suspended, and subsequently closed.

  • Reinforced Mine Tailings Pond Closure in Huelva, Spain

    The Sotiel Coronda mining complex is located at Calanas in the province of Huelva (Andalucia), Southwest Spain. This was a huge deposit of pyrite mineral that had been extracted over centuries of mining in the area. The main mineral extraction activity was the processing of copper, lead and zinc, as well as the production of sulphuric acid.

  • Major El Teniente tailings project for Spain’s OHL

    Major El Teniente tailings project for Spain’s OHL Posted by Paul Moore on 27th December 2017 Spain’s OHL has been awarded a contract at the largest underground copper mine, El Teniente, located 120 km from Santiago de Chile. The project has been awarded by Codelco, with a budget of approximately $20 million.

  • Mining Copper Tailings Spain

    The tailings pond failure at the Aznalcóllar mine, Spain1 Boliden. Mine Environmental Consultant, Sevilla, Spain closure of the failed tailings pond, the re-start of the operations, as well as the human aspects and copper.

  • New approaches for extracting and recovering metals from

    May 15, 2017· A two-stage mineral leaching and metal recovery protocol was developed to extract copper from tailings generated as waste materials in two mines currently operating in Spain and Serbia.

  • Geochemistry of a copper mine tailings deposit in

    Dec 10, 2018· Within copper mining and extraction, the resulting tailings usually account for a high proportion (up to 99%) of the mined ore (IIED, 2002). Submarine tailing disposal is considered to be a viable option as the tailings are not visible on land, may be more stable on the ocean floor and are less likely to oxidize in the submarine environment.

  • Economic Potential for reprocessing Copper Mine Tailings

    The copper grade of the tailings varied between 0.1 % and 1.7 %. Further elements of interest were iron, gold, molybdenum and zinc. This data and the tonnage of the tailings ponds was the basis to select four sites for a more detailed analyzes (Minera Carola, Minera Clarita, El Salado and Taltal).

  • Evaluation of metal mobility from copper mine tailings in

    (4)Agrarian Science and Technology Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203, Cartagena, Spain. This work shows the results obtained on a copper mine tailing in the Antofagasta Region, Chile. The tailing was classified as saline-sodic with high concentrations of metals, especially Cu and Fe, with pH 8.4.

  • Mining Mining in Andalucia Andalucia

    It was controversial at the time and it did spark foreign interest in mining in Spain. This led to the Taylors and others investing successfully in lead mines in Linares and Matheson in the Río Tinto copper mines. Gold Fever in Rodalquilar. Mining was restarted in 1864 and gold fever struck in 1880.

  • Tailings Wikipedia

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.. The extraction of minerals from ore can be done two ways: placer mining, which uses water

  • Environmental Risks From Mine Tailings

    Aug 10, 2018· Tailings from copper and uranium mining often produce measurable levels of radioactivity. Tailing Ponds . Some mining wastes become very fine after they have been ground up during processing. The

  • Geotechnical Properties of Mine Tailings Journal of

    The engineering properties of tailings are important for the safety evaluation and engineering design of tailing dams. In the present study, laboratory experiments were performed to investigate the geotechnical properties of four different tailings, including two iron tailings (coarse and fine) and two copper tailings (coarse and fine).

  • About us Doré Copper Mining Corp

    About us Overview. In 2017 AmAuCu Mining Corp., a private company, acquired an option on the former Campbell Resources assets, which included the Copper Rand mine, mill and tailings area, the Cedar Bay mine, Lac Doré mine, Jaculet mine, Shaft 3, Portage Island and mine, Henderson I&II mines, Devlin deposit, 50% JV in the Gwillim mine and the Corner Bay mine.

  • Expande BHP Tailings Challenge

    Tailings is a common by-product of the mineral recovery process. In hard rock mining, the rock containing the ore is pulverized in a series of crushing and grinding processes in order to extract the mineral. This process is also known as comminution, i.e., grinding the ore into fine particles.

  • Copper Tailing an overview ScienceDirect Topics

    Rapid hardening Portland cement P. O 42.5 R, fly ash, and silica fume were used as binding materials. Local river sand with a specific surface area of 0.101 m 2 /g and copper tailings with a specific surface area of 0.141 m 2 /g served as the fine aggregates. Highly efficient polycarboxylate-based superplasticizer with a water reducing rate of more than 30% and a solid content fraction of 37.2

  • Copper extraction Wikipedia

    Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

  • Home Lundin Mining Corporation

    Welcome to Lundin Mining Lundin Mining is a diversified Canadian base metals mining company with operations in Brazil, Chile, Portugal, Sweden and the United States of America, primarily producing copper, zinc, gold and nickel.

  • Responsible mining? Minnesota has a long way to go. MinnPost

    Aug 21, 2020· The only copper-nickel mine that has reached the permitting stage in Minnesota the PolyMet/Glencore mine would fail any reasonable science-based independent certification system.

  • Treasure from trash: how mining waste can be mined a

    Jun 28, 2016· Identifying mine waste materials as economic resources will help support global demand for critical metals, boosting the mining industry during the downturn. All with environmental benefits.

  • Copper Sulfide Mining Earthworks

    Tailings spills have occurred at nine operations, and a partial failure of the tailings impoundment occurred at four out of fourteen mines (28%). These included a 1997 partial failure of the tailings impoundment at the Pinto Valley Mine, where the creek bed and surrounding upland were buried under material as deep as 42 feet.

  • Tailings Retreatment: The Next Revenue Source for the

    Tailings deposited into dams are in the form of a slurry. In 1998, a tailings dam failed at the Los Frailes zinc mine in Spain, causing more than one billion gallons of acidic, heavy metal-laden sludge to spill into the surrounding area, eventually making its way into the Guadiamar River. The spill decimated the area, resulting in massive

  • Temperature Effects on Rheological Properties of Fresh

    Total tailings, binder, and tap water of the same mix proportion were used to prepare the paste samples under different temperature conditions. 2.1.1. Tailings. Unclassified tailings samples were collected from Jiashi copper mine in Xinjiang autonomous region, China.

  • Tailings Retreatment: The Next Revenue Source for the

    Tailings deposited into dams are in the form of a slurry. In 1998, a tailings dam failed at the Los Frailes zinc mine in Spain, causing more than one billion gallons of acidic, heavy metal-laden sludge to spill into the surrounding area, eventually making its way into the Guadiamar River. The spill decimated the area, resulting in massive

  • Copper extraction Wikipedia

    Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

  • Evaluation of metal mobility from copper mine tailings in

    (4)Agrarian Science and Technology Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203, Cartagena, Spain. This work shows the results obtained on a copper mine tailing in the Antofagasta Region, Chile. The tailing was classified as saline-sodic with high concentrations of metals, especially Cu and Fe, with pH 8.4.

  • Expande BHP Tailings Challenge

    Tailings is a common by-product of the mineral recovery process. In hard rock mining, the rock containing the ore is pulverized in a series of crushing and grinding processes in order to extract the mineral. This process is also known as comminution, i.e., grinding the ore into fine particles.

  • Jubilee nearly doubles rights to copper tailings in Zambia

    Nov 05, 2020· Jubilee Metals Group has concluded further copper tailings transactions to secure the rights to an additional approximately 115 Mt of copper and cobalt containing surface tailings in Zambia. supply and process development agreements with a number of privately held entities who collectively hold both the mining rights to the tailings and the

  • 1, á 2 Í é 5 novas Álvarez MDPI

    minerals Article A Methodology Based on Magnetic Susceptibility to Characterize Copper Mine Tailings Elizabeth J. Lam 1,*,Rodrigo Carle 2, Rodrigo González 2, Ítalo L. Montofré 3,4, Eugenio A. Veloso 5, Antonio Bernardo 6, Manuel Cánovas 4 and Fernando A. Álvarez 3,7 1 Chemical Engineering Department, Universidad Católica del Norte, Antofagasta CP 1270709, Chile

  • British Columbia’s Mount Polley Copper Mining Disaster of

    Immediately below are satellite photos of the Mt Polley copper/gold mining facility’s before and after it suddenly dissolved in 2014. Note the change in color of the tailings pond, the nearby lakes and the widening of the Hazeltine Creek that directed the poisonous sludge into Quesnel Lake.

  • (PDF) Geotechnical Characteristics of Copper Mine Tailings

    The disposal of copper tailings is one of the environmental challenges in the copper mining industry. Particles in tailings may cause air pollution in summer season and erosion of tailings in the

  • Why are Atalaya's RioTinto tailings dams at risk? London

    Its Riotinto Mine [formerly owned by, but no longer associated with, Rio Tinto mining company] is an open-pit copper mine in the province of Huelva, Andalusia, southern Spain. The mine currently processes 9.5 million metric tons of copper ore per year with

  • About us Doré Copper Mining Corp

    About us Overview. In 2017 AmAuCu Mining Corp., a private company, acquired an option on the former Campbell Resources assets, which included the Copper Rand mine, mill and tailings area, the Cedar Bay mine, Lac Doré mine, Jaculet mine, Shaft 3, Portage Island and mine, Henderson I&II mines, Devlin deposit, 50% JV in the Gwillim mine and the Corner Bay mine.

  • Jubilee nearly doubles rights to copper tailings in Zambia

    Jubilee has secured the exclusive processing rights to the material through its subsidiary Braemore Platinum by entering into tailings supply and process development agreements with a number of privately held entities who collectively hold both the mining rights to the tailings and the property title on which the tailings are located.

  • Mining Mining in Andalucia Andalucia

    It was controversial at the time and it did spark foreign interest in mining in Spain. This led to the Taylors and others investing successfully in lead mines in Linares and Matheson in the Río Tinto copper mines. Gold Fever in Rodalquilar. Mining was restarted in 1864 and gold fever struck in 1880.

  • Lessons from a Polluted Superfund Copper Mine that used

    Aug 02, 2019· The acid mine drainage into the Rio Tinto river estuary from the copper mine tailings has resulted in total and permanent poisoning of the downstream area for over a century, even before open pit mining with giant earth-moving equipment made it feasible to mine low-grade copper sulfide ore. Most of Spain’s Rio Tinto river has a pH as low as 2

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