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Pyrite flotation separation and encapsulation in tailings dams is proposed as a viable way to chemically stabilize tailings. Characterization of potential acid mine generation in tailings led to an innovative process in which acid-generating pyrite is separated by flotation from the coarse tailings and incorporated into the slime zone. …
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A new flotation tailings treatment process was developed for efficient Cu recovery.. An efficient Cu dissolution was achieved in an H 2 O media in presence of pyrite.. The dissolution mechanism of CuFeS 2 has been confirmed to be a multistage reaction.. Fe was always co-dissolved with Cu following a linear relation of C Fe = 38.393 × C Cu.. …
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The obtained Cu-concentrate is sent to the pyrometallurgical process. If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved by ferric leaching, and Cu content in tailings is reduced from 0.78% to 0.24%.
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As ore grades constantly decline, more copper tailings, which still contain a considerable amount of unrecovered copper, are expected to be produced as a byproduct of froth flotation. This research reveals the occurrence mechanism of copper minerals in typical copper sulfide tailings using quantitative mineral liberation analysis (MLA) …
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Flotation tailings from copper production are deposits of copper and other valuable metals, such as Mo, V and U. New hydrometallurgical technologies are more economical and open up new possibilities for metal recovery. This work presents results of the study on the extraction of copper by mixed extractant consisting p-toluidine …
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Tailings that are generated in the copper concentrate production contain great amount of sulfide mineral, in particular pyrite. Pyrite in contact with water and oxygen might oxidize spontaneously ...
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produced by flotation (International Copper Study Group, 2012). In 2011, about 60 percent of primary copper produced in the United States originated from flotation (Daniel E. Edelstein, Copper Commodity Specialist, U.S. Geological Survey, …
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This paper presents a review of chemical composition data of the main stages of copper production from sulfide minerals, such as (1) copper minerals, (2) flotation tailings, (3) flotation ...
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Dry magnetic separation was subjected to copper flotation tailings to separate ferromagnetic metals (Fe and Ni) from diamagnetic Al particles and the process achieved a recovery of around 99%. The ...
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plication in the phytoremediation process of the tailings. Keywords Tailings .Coppermining .Metalpollution . Elementaccumulation .Phytoremediation Introduction Mining and processing of copper ores extensively alter the environment, and the main difficulty is a huge amount of flotation tailings which comprise even 96% of the mass of
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Copper tailings are either stored in the dam and/or backfilled. The volume of backfilled materials depends on the mine site's configuration and site information (Section 2.3.2). Backfills also require additional materials and energy consumption, such as cement binder, slags, diesel, and electricity in the operational phase. In the year 2050, it ...
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The present study focuses on the experimental investigation of sulphatizing roasting of flotation tailings from copper slag processing using iron (II) and (III) sulfates followed by water leaching. The effect of temperature, duration of sulphatizing roasting, as well as the amount of iron sulfates on the conversion of zinc, copper, iron and ...
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Flotation tailings produced at three concentrator plants operated by KGHM Polska Miedz SA (SW Poland) are all continuously deposited in the Zelazny Most Tailings Storage Facility. The aim of this study was to analyze the possibility of recovering copper from the stream of final tailings continually produced by the largest of the three KGHM ...
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The laboratory graduated cylinder and jar test methods are commonly used to evaluate the effectiveness of polymers in improving suspension settling rate and flocculation performance.
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The paper presents a study of sulphatizing roasting using iron (II) and (III) sulphates of copper slag flotation tailings of JSC "SUMZ" (Sredneuralsk Copper Smelter) with high content of silica. Temperature ranges of sulphatizing roasting and necessary amounts of Fe 2 (SO 4 ) 3 and FeSO 4 for sulphation of zinc and copper were …
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DOI: 10.1080/00084433.2024.2380577 Corpus ID: 271439966; Linking ores flotation results to the Kinsenda copper deposit mineralogical features: enhancing the recovery of copper retained in flotation tailings
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Loss of copper minerals into the tailings of the rougher and scavenger circuits is one of the challenges in copper processing plants, which reduces the efficiency of the circuit.
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of gold enterprises because of tailings storage facilities.6 What is more, these tailings contain valuable minerals, such as zinc, lead, copper and sulfide minerals. For example, cyanidation tailings from Gaoyao Hetai Gold Plant (Guangdong Pro-vince, China) contains 2.5% Cu, 0.31% Pb, 0.23% Zn and 15.36% Fe12 and that from Tianshui Gold Plant
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Mineral tailings from two copper mines were bioleached under different conditions. • Greatest copper extraction was achieved at extremely low pH, at 45 °C and under oxidative/reductive conditions.. Copper present in tailings PLS was selectively precipitated as CuS by biogenic H 2 S.. Microbial communities were dominated by Sb. …
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After copper recovery by flotation, the remaining part of the slag is considered waste and disposed of in the slag dump area. However, even after copper recovery, copper slag flotation tailings (CSFT) may still contain several metals in varying amounts. However, the complexity and low metal concentration have undermined the …
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The purpose of this study is to identify the physical, mineralogical, and electrochemical properties of copper flotation tailings as well as to investigate how polymer type, dose, suspension pH, and mixing circumstances affect flocculation.
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The presence of fine and ultra-fine gangue minerals in flotation plants can contribute to sub-optimal valuable ore recovery and incomplete water recycling from thickeners, with the performance of the …
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Bioleaching of samples taken from depths of 10, 15, and 20 meters from old flotation tailings of the Copper Mine Bor was conducted in shaken flasks using extremely acidic water of Lake Robuleas … Expand. 15. PDF. Save. Recovery of Copper from a Waste Heat Boiler Dust Leach Liquor using LIX 84I and LIX 622N.
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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), which gives copper grades of 0.27% for inactive and abandoned tailings <10 M t . The investigated TSF was in operation between ...
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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 …
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If grinding is not fine enough for efficient flotation, copper is lost in tailings. In this paper, the ferric leaching of slag flotation tailings is studied. Copper extractions of 66% are achieved ...
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Large amounts of tailings are produced when copper minerals are concentrated by flotation. For instance, the flotation process is performed with water …
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The evaluation of flotation method to recovery copper from tailings has been conducted. The application of novel depressant (NDAD) and collector (COES) …
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Sulfide copper mineral, typically Chalcopyrite (CuFeS2), is one of the most common minerals for producing metallic copper via the pyrometallurgical process. Generally, flotation tailings are produced as a byproduct of flotation and still consist of un‒recovered copper. In addition, it is …
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In this study, a hydrometallurgical method for the recovery of copper, cobalt, and zinc from copper slag flotation tailings (SFT) was investigated. SFT contains large amounts of valuable metallic compounds, such as copper, cobalt, and zinc. A representative SFT sample containing 0.50% Cu, 0.148% Co, 3.93% Zn, and 39.50% Fe was used in …
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