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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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Chile has a long history of mining and large-scale mining started in the first decade of the twentieth century. In 2016, Chilean mining exports were valued at 30,379 million USD according to the National Service of Geology and Mining (SERNAGEOMIN), 90% of which came from copper mining (SERNAGEOMIN, 2017).Chile is the world's …
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This study aimed to recover cobalt using tailings of the Küre flotation plant, which were determined to contain 0.17% Co. Flotation tests were conducted on samples taken from the tailings to ...
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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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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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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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Flotation Tailings: Effect of Feed Dilution on the Thickener Performance, Mineral Processing and Extractive Metallurgy Review, DOI: 10.1080/08827508.2018.1497626 To link to this article: https ...
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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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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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2. 2. Flotation Procedure All the flotation test-work was done using the Denver laboratory machine with a 1.5l stainless steel flotation cell. The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about
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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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In the process of flotation of copper ore, flotation tailings containing metal sulfides are separated and represent a special challenge for the topic of mining waste management. ... Many researchers have already developed and proposed various technologies with a high degree of success in their experiments. It is certainly most …
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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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An efficient copper recovery process (total copper recovery of 86.2%) is proposed for the utilization of concentrate of flotation tailings as one of the new copper …
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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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Samples of copper tailings were collected from the overflow and underflow streams of the primary hydrocyclone at the processing plant discussed in Section 2.1.The d90s of these samples were 63.7 μ m and 279 μ m respectively and the particle size distributions of each can be found in Fig. 1.The samples were obtained as slurry, which …
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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 flotation tests were conducted in a 'Denver' cell with a stainless steel reactor of 8 L effective capacity, fitted with 9 ultrasonic transducers (Clangsonic 2045-68LB P8), as shown in Fig. 2.The transducers were connected to a Clangsonic SONOCLG XR 2000G generator of 2000 W.Each transducer emits 100 W of power at a frequency of 20 …
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A brief statistical analysis has shown that froth flotation is a reliable process to recover copper from flotation tailings. Collector dosage remains the main parameter …
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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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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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Response surface methodology is used to optimize the leaching process for refractory flotation copper tailings. The proportion of the refractory combination oxide copper (chrysocolla) is 64.84%. At …
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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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Copper froth flotation tailings containing 1.19 and 0.97 wt% total and acid-soluble copper, respectively, from Chibuluma mines in the Copperbelt province of Zambia were characterized by SEM and XRD techniques. The major phases in the feed material were malachite,...
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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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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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The present research aims at identifying exploitable routes for recovering metals retained in the tailings from the flotation of Cu and Co ores (oxidized and …
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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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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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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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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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These results show that froth flotation, carried out with the appropriate reagents, is a successful method for recovering Co by enriching the flotation plant tailings.
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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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The tailings treatment includes three key aspects: (i) settling efficiency for flocculation and sedimentation; (ii) sediment moisture content for concentration and …
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