المنتجات الساخنة
Evaluation of the possibility of copper recovery from
网页2018年1月10日The present research aims at recovering copper by reprocessing of tailings at China Molybdenum Co. Ltd. (CMOC) from bench-scale to industrial tests. It focuses on the determination of the reagents' dosage and pulp concentration that
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Processing Tests, Adjusted Cost Models and the Economies of
网页2021年1月6日This makes old tailings or tailings originating from processing facilities with a non-homogeneous ore feed or with a non-homogeneous copper mineralogy
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Prospective environmental assessment of reprocessing and
网页2022年11月1日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
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Regionalized Life Cycle Inventories of Global Sulfidic
网页2022年3月16日This research combines state-of-the-art environmental and mineral processing frameworks, indicating highly variable impacts caused by sulfidic copper tailings deposited worldwide. Regionalized Life Cycle
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New Tailings Reprocessing Technology Has
网页2020年10月6日Several efforts are underway to extract gold and copper from tailings. Reprocessing mine tailings may also have
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Mine tailings: reprocess, recoverrecycle The
网页2019年9月13日By reprocessing tailings, dewatering them and then storing them in a dry stack, mines can remove some of the economic, environmental and societal risks
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How to generate value from tailings with reprocessing
网页2020年6月2日A standard method of reprocessing involves dragging tailings from an existing dam back to the concentrator and using required mineral processing solutions to liberate the valuable metals.
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Tailings Processing PlantEquipment Mineral Processing
网页We provide gold tailings processing solutions, also suitable for all kinds of tailings with re-selection value, including iron, gold, lead-zinc, copper, tungsten, fluorite ore and other
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Keeping Up with Demand: Copper Tailing Reprocessing
网页2022年4月22日Finally, the copper content is enriched using equipment such as flotation cells and multi-gravity separators, and then the tailings composition is redetermined.
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Copper Ore Processing Plant Fote Machinery
网页Applicable copper ores: Copper sulfide ores such as chalcopyrite, bornite and chalcocite, as well as common copper oxide ores such as azurite, etc. Five common flotation methods: sulphidizing flotation, fatty acid flotation,
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The Reprocessing and Revalorization of Critical Minerals in Mine Tailings
网页2022年1月1日Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue minerals that
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Potentially Exploitable Reprocessing Routes for Recovering Copper
网页2021年1月4日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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Prospective environmental assessment of reprocessing and
网页2022年11月1日The environmental impacts of reprocessing copper mine tailings were studied. • Process modeling and technology upscaling were performed for inventory analysis. • Tailings reprocessing resulted in climate-positive impacts from a life cycle perspective. • Mineral recovery is essential to ensure significant benefits from
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Regionalized Life Cycle Inventories of Global Sulfidic
网页2022年3月16日Worldwide, an issue of copper production is the generation of mine waste with varying characteristics. This waste can pollute natural environments, and in particular, the heavy metal emissions of the
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Towards mine tailings valorization: Recovery of critical materials
网页2020年8月1日In copper mining, tailings can account for 95–99% of crushed and ground ores (Edraki et al., 2014). Worldwide, mine tailings are produced at a rate of anywhere from five to fourteen billion tons per year (Adiansyah et al., 2015; Edraki et al., 2014; Schoenberger, 2016).
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Feasibility of re-processing mine tailings to obtain critical raw
网页2021年4月1日Recently, authors have also investigated the use of Chilean coppertreated tailings as supplementary cementitious materials to improve properties of concrete [86,87], the use of copper tailings
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(PDF) A SUSTAINABLE TAILINGS REPROCESSING
网页2018年7月2日HeizmannLiebetrau (2017) [2] found that tailings contain significant amounts of ores in a recent study on the efficiency of artisanal and small-scale mining in Rwanda, and recommended
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How to generate value from tailings with reprocessing to be
网页2019年10月15日With advent of novel technologies, mining companies are now figuring out ways to extract valuable metals from tailings. 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 approach compared to processing virgin material.
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Reprocessing historic tailings three Chilean case studies
网页Reprocessing historic tailings e.g. average copper content in tailings decreased from 0.8% in the 20th century to 0.1% nowadays Consequently, many historic tailings have higher or comparable grades to current ore deposits. The reprocessing of these historic tailings can have important economic and environmental benefits, as
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Economic Potential for reprocessing Copper Mine Tailings in
网页potential for tailings reprocessing is strongly dependent on the composition of the valuable metals hosting minerals in connection with the applied processing technology. Key words: Tailings, reprocessing, bioleaching, conventional leaching. Introduction In Chile copper mining started in the middle of the 19 th century. During the 20 th
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Prospective environmental assessment of reprocessing and
网页2022年11月1日The environmental impacts of reprocessing copper mine tailings were studied. • Process modeling and technology upscaling were performed for inventory analysis. • Tailings reprocessing resulted in climate-positive impacts from a life cycle perspective. • Mineral recovery is essential to ensure significant benefits from
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The Reprocessing and Revalorization of Critical Minerals in Mine Tailings
网页2022年1月1日Mine tailings, the byproduct of mining and mineral processing, are increasingly mass produced as a result of increased demand for metals and minerals as well as the advancement in technology that allows for the exploitation of lower-grade ores. Lower grades can increase the volume of tailings that may contain new gangue minerals that
Contact
Potentially Exploitable Reprocessing Routes for Recovering Copper
网页2021年1月4日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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Recovery of critical materials from mine tailings: A comparative
网页2019年5月1日The environmental performance of reprocessing of tailings is influenced by technology routes, secondary material market penetration, The results obtained agree with this fact, identifying several copper ores (mainly oxides, oxidized and sulphide minerals). Copper has average concentrates of 0.27% in S1, and 0.48% in S2).
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Towards mine tailings valorization: Recovery of critical materials
网页2020年8月1日In copper mining, tailings can account for 95–99% of crushed and ground ores (Edraki et al., 2014). Worldwide, mine tailings are produced at a rate of anywhere from five to fourteen billion tons per year (Adiansyah et al., 2015; Edraki et al., 2014; Schoenberger, 2016).
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Toward sustainable reprocessing and valorization of sulfidic copper
网页2023年5月1日Environmental impacts of copper tailings reprocessing in the EU are quantified. • Future scenario narratives are leveraged to create prospective life cycle assessment models. • Copper tailings reprocessing can mitigate GHG emissions and toxicity impacts in 2050. • Tailings reprocessing can supply up to 2 % of future
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(PDF) A SUSTAINABLE TAILINGS REPROCESSING PROJECT: A
网页2018年7月2日HeizmannLiebetrau (2017) [2] found that tailings contain significant amounts of ores in a recent study on the efficiency of artisanal and small-scale mining in Rwanda, and recommended
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Reprocessing historic tailings three Chilean case studies
网页Reprocessing historic tailings e.g. average copper content in tailings decreased from 0.8% in the 20th century to 0.1% nowadays Consequently, many historic tailings have higher or comparable grades to current ore deposits. The reprocessing of these historic tailings can have important economic and environmental benefits, as
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Waste Production and Utilization in the Metal Extraction Industry
网页For example, Lutandula and Maloba (2013) used flotation to recover copper and cobalt by reprocessing tailings from oxidized ores in the Democratic Republic of the Congo (DRC). However, the excessive consumption of reagents in relation to tailings was found to be of major concern from a technical and economic standpoint.
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Economic Potential for reprocessing Copper Mine Tailings in
网页potential for tailings reprocessing is strongly dependent on the composition of the valuable metals hosting minerals in connection with the applied processing technology. Key words: Tailings, reprocessing, bioleaching, conventional leaching. Introduction In Chile copper mining started in the middle of the 19 th century. During the 20 th
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