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Evaluation of soil intervention values in mine tailings in ...

2018-11-2  In the case of Chile, copper production schemes have considered the recovery of secondary elements such as gold, silver, and molybdenum. However, the rest of the elements remain as part of the waste, such as tailings, gravel, or slag. On the other hand, there are the environmental problems associated with mining tailings in Chile,

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New Tailings Reprocessing Technology ... - Advancing

2020-10-6  New Tailings Reprocessing Technology Has Environmental Benefits. Tailings, mineral waste products produced by mining operations, are a well-known pollutant requiring remediation. Tailings may be dumped in or near water or

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Geochemistry of Surface Samples of the Tailings

2018-2-23  In Chile, tailings from extractive metal mining have mostly come from copper and gold. On a smaller scale, country has some iron and zinc mining. Other metals have been extracted as by-products (molybdenum, for example), so that there are tailings deposits whose origins are varied, depending on the metal benefited.

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Economic Potential for reprocessing Copper Mine

2016-7-31  Economic Potential for reprocessing Copper Mine Tailings in Chile. Malte Drobe, Axel Schippers, Jürgen Vasters BGR Hannover, Germany, [email protected], [email protected] . Abstract Four copper mine tailings in Chile were investigated for their elemental and mineral composition, in order to evaluate the potential for economic reprocessing.

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Towards mine tailings valorization: Recovery of critical ...

2020-8-1  Historical assessment of metal recovery potential from old mine tailings: a study case for porphyry copper tailings, Chile Miner. Eng. , 127 ( 2018 ) , pp. 334 - 338 , 10.1016/j.mineng.2018.04.022

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Amerigo processes new tailings source in Chile - Canadian ...

2015-9-30  Amerigo Resources (TSX: ARG; US-OTC: ARREF) hasn’t lost much time since it cut a deal with Codelco in April 2014 to treat a new source of tailings from the miner’s El Teniente mine, the world’s largest underground copper operation, near Santiago, Chile.. Until now, the Vancouver-based company has been processing fresh tailings from El Teniente and historic tailings from the mine’s ...

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About Tailings Fact Sheet - Ballarat Gold Mine

The tailings may also contain traces of chemicals that are used in the gold recovery process, the most notable being cyanide. Cyanide is one of the few chemicals that can dissolve gold. At Ballarat Gold Mine, cyanide is chemically destroyed to harmless

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Evaluation of soil intervention values in mine tailings in ...

2018-6-9  The aim of this work is to show a methodological proposal for the analysis of soil intervention values in mine tailings in order to determine the intervention requirements in the commune of Andacollo in northern Chile. The purpose of this analysis is to

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Amerigo processes new tailings source in Chile - Canadian ...

2015-9-30  Amerigo Resources (TSX: ARG; US-OTC: ARREF) hasn’t lost much time since it cut a deal with Codelco in April 2014 to treat a new source of tailings from the miner’s El Teniente mine, the world’s largest underground copper operation, near Santiago, Chile.. Until now, the Vancouver-based company has been processing fresh tailings from El Teniente and historic tailings from the mine’s ...

Read More
International Mining Reprocessing Tailings Reduction

2020-6-22  recovery of a high-grade saleable copper sulphide product, the re-generation of cyanide (a major operating cost at Parral) and an improvement in the leaching efficiency of the heap. In Africa, the likes of Goldplat and Jubilee. Metals Group have been profitably processing . gold and platinum group and base metals from waste streams for many years.

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Gold Recovery Study from a Small Scale Mine Tailings

Artisanal Gold Mining (AGM) in 2013 accounted for approximately 12 to 15% of all the gold produced in the world. In many countries, the main method of extraction is whole ore gold amalgamation using mercury in a grinding media. This technique loses to the environment 30 to 50% of the mercury added into the mill and only around 30% of the gold is extracted. This study provides a technical ...

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New Tailings Reprocessing Technology ... - Advancing

2020-10-6  New Tailings Reprocessing Technology Has Environmental Benefits. Tailings, mineral waste products produced by mining operations, are a well-known pollutant requiring remediation. Tailings may be dumped in or near water or

Read More
Alkali activation as new option for gold mine tailings ...

2018-6-20  The mining industry produces a huge quantity of sulphidic mine tailings, which cause several short- and long-term environmental problems when disposed by landfilling in impounding lakes. The possibility of immobilizing several heavy metals from gold mine tailings by reactive geopolymerization technique has been investigated in the present study.

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About Tailings Fact Sheet - Ballarat Gold Mine

The tailings may also contain traces of chemicals that are used in the gold recovery process, the most notable being cyanide. Cyanide is one of the few chemicals that can dissolve gold. At Ballarat Gold Mine, cyanide is chemically destroyed to harmless

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Tailingsfo Hydraulic Mining of Tailings

2021-1-4  A typical flow sheet for the reprocessing of tailings is shown below in figure 2. Figure 2: Simplified diagram showing the hydraulic re-mining of tailings. It can be noted that the use of hydraulic mining for tailings can be to either reprocess the waste, mine the waste as a product, or for moving of the tailings to a more suitable location.

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Re-Processing Gold Tailings in South Africa

historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid

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Decomposition of Cyanide from Gold Leaching Tailingsby ...

Cyanidation is widely used by most gold mine worldwide and will remain prevail in years (or decades) to come, while cyanide is hazardous, toxic pollutants whose presence in wastewater and tailings can seriously affect human and its environment; hence, it is necessary to control these contaminants. The purpose of this study was to examine the effects through the investigation of changes in pH ...

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Amerigo processes new tailings source in Chile - Canadian ...

2015-9-30  Amerigo Resources (TSX: ARG; US-OTC: ARREF) hasn’t lost much time since it cut a deal with Codelco in April 2014 to treat a new source of tailings from the miner’s El Teniente mine, the world’s largest underground copper operation, near Santiago, Chile.. Until now, the Vancouver-based company has been processing fresh tailings from El Teniente and historic tailings from the mine’s ...

Read More
Geochemistry of Surface Samples of the Tailings

2018-2-23  In Chile, tailings from extractive metal mining have mostly come from copper and gold. On a smaller scale, country has some iron and zinc mining. Other metals have been extracted as by-products (molybdenum, for example), so that there are tailings deposits whose origins are varied, depending on the metal benefited.

Read More
Metals Free Full-Text Submarine Tailings in Chile—A ...

In Chile, tailings have been mainly produced by the copper and gold industries, and to a lesser, the iron and zinc industries . The government plan only covers 37 abandoned tailings, but according to Sernageomin (Spanish acronym of National Geological and Mining Survey), there are about 800 tailing deposits, mainly in the Antofagasta, Atacama ...

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El Indio’s use of cyanide leach/CIP circuit to scavenge ...

Mining and milling of high-grade gold/silver/copper ores at the El Indio mine in Chile commenced in 1981, and continues to be a successful and profitable operation. Mining of the hydrothermal sub-volcanic quartz and enargite/pyrite veins is performed by open-pit and selective cut-and-fill methods.

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New approaches for extracting and recovering metals from ...

Mine tailings are an environmental burden that contains precious metals such as gold, but further treatment of the tailings and improving the gold recovery has the potential to offer massive ...

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International Mining Reprocessing Tailings Reduction

2020-6-22  recovery of a high-grade saleable copper sulphide product, the re-generation of cyanide (a major operating cost at Parral) and an improvement in the leaching efficiency of the heap. In Africa, the likes of Goldplat and Jubilee. Metals Group have been profitably processing . gold and platinum group and base metals from waste streams for many years.

Read More
Rare Earth Reclamation Mining Company

2021-10-8  Apache Mill Tailings USA, Inc. is a precious metals mining company specializing in gold, silver, copper and high value, rare earth minerals reclamation recovery. To maximize profits, accelerate project success and reduce risk, we work with above ground mine and ore mill tailings deposits. We have developed a business growth and expansion ...

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Decomposition of Cyanide from Gold Leaching Tailingsby ...

Cyanidation is widely used by most gold mine worldwide and will remain prevail in years (or decades) to come, while cyanide is hazardous, toxic pollutants whose presence in wastewater and tailings can seriously affect human and its environment; hence, it is necessary to control these contaminants. The purpose of this study was to examine the effects through the investigation of changes in pH ...

Read More
Re-Processing Gold Tailings in South Africa

historic gold tailings dams in the Witwatersrand area of South Africa is being investigated. The objective is to recover uranium and residual gold from the tailings, as well as to oxidize the sulphides to eliminate long term environmental liabilities associated with acid

Read More
Americas Region OPERATIONS Gold Fields

Mining method : Open pit : Open pit : Infrastructure : Cerro Corona mine operates one open pit and one copper-gold flotation plant. The mining administration and maintenance facilities are located at the mine. Open pit with combined counter-current decantation, Merrill-Crowe and Carbon in Pulp (CIP) processing at 2Mtpa. Dry-stack tailings disposal

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