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Leaching characteristics and mechanism of copper flotation …

The copper deposit in Yangla zone of China is large, and its recovery is low only using flotation process. Therefore, the copper in the flotation tailings is leached by sulfuric acid can improve copper recovery. The factors affecting leaching process and the leaching mechanism were investigated in this study. Copper is leached at a rate of …

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Statistical investigation of flotation parameters for copper …

Several attempts have been done, aiming to recover copper from flotation tailings through mainly acid leaching [17], and froth flotation [4].Using the latter, the recovery of copper through reprocessing of tailings has been studied both in the …

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Recovery of Copper from Cyanidation Tailing by …

Recovery of Copper from Cyanidation Tailing by Flotation TINGSHENG QIU,1,2 XIONG HUANG,2 and XIULI YANG1,2,3 ... Effect of Sodium Hypochlorite on Copper Recovery in the Flotation Process The effect of sodium hypochlorite on copper recov-ery was examined at pH 9.8–10.2, xanthate concen-

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Enhanced flocculation and sedimentation of copper tailings …

The copper tailing suspension was prepared at 30 wt% solids concentration. Initially, the polymer solutions of NPAM (0.05 wt%) and PCE (1.00 wt%) were prepared for all the measurements at 25 °C. The copper tailing suspension of 100 mL was stirred vigorously at 500 rpm using a stirrer for 10 min in a beaker. After adding the required ...

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Evaluation of the possibility of copper recovery from tailings …

Based on environmental protection and economic considerations coupled with scientific and technological developments, various technologies for the treatment and comprehensive utilization of Cu tailings have been investigated (Ma et al., 2014, Onuaguluchi and Eren, 2016).The flotation plant in Luanchuan (Henan, China) is …

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Copper Sulfide Flotation

The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values. The ore, ranging from 60-65% silica, with pyrite, ... The concentrate from …

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The Challenges and Prospects of Recovering Fine Copper …

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are ...

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The Challenges and Prospects of Recovering Fine Copper …

After flotation, copper concentrates are sent to the smelter for the production of highly purified copper cathodes (>99.99% Cu), while tailings are disposed of in tailing dams near mine sites. In an ideal mineral processing of copper ores, all copper mineral grains must be liberated from gangue minerals in the comminution step (crushing and ...

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The Challenges and Prospects of Recovering Fine …

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are …

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Flotation-assisted electrodeposition process to recover copper …

The metal-rich concentrate used for electrodeposition was obtained by removing non-metallic tailing from crushed WPCBs through flotation, and the recovery rate of copper after flotation was calculated via Eq. ... Flotation increased the copper content in metal-rich concentrate by 183.2 %, providing a raw material with a copper …

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Copper distribution in tailing of rougher …

Download scientific diagram | Copper distribution in tailing of rougher flotation cells as a function of particle size fractions. from publication: Recovery Improvement of Coarse Particles by ...

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An Experimental Investigation on the Copper Recovery from Flotation …

In this study, the possibility of copper recovery from flotation tailing of Mazraeh copper mine was investigated. Magnetic separation method was used for concentration of non-magnetic minerals, especially copper bearing minerals, from iron minerals. As a result, copper grade increased up to 0.18% and its recovery reached …

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Recovery of Copper from Cyanidation Tailing by Flotation …

Recovery of valuable sulfide minerals by flotation from the tailing of an iron-copper mine in central China was investigated in this paper. The surface oxidation status of sulfide minerals is an ...

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Economic potential and environmental impact of metal …

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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Potentially Exploitable Reprocessing Routes for Recovering …

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 …

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(PDF) Dewatering of Copper Flotation Tailings: Effect of …

Dewatering of Copper Flotation Tailings: Effect of Feed Dilution on the Thickener Performance July 2018 Mineral Processing and Extractive Metallurgy Review 40(1):1-7

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1 Froth Flotation – Fundamental Principles

Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...

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Tellurium Enrichment in Copper Tailings: A Mineralogical …

The copper tailing (CT) samples were collected from rougher flotation tailings at a major copper producer in the USA. Two sample batches were provided with a time difference of two years; the first batch received was called Tailings 1 (CT1), and the second batch was called Tailings 2 (CT2).

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Old copper flotation tailings waste reprocessing

The beneficiation plant at this particular mine in Mexico produces a copper concentrate, however their flotation circuit only recovers around 75% of the gold; the rest is lost in the tailings [14 ...

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Response Surface Methodology for Optimization of Copper …

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 present, few studies have examined the leaching of chrysocolla. In this study, we examine the effects of several variables, including the …

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Ferric leaching of copper slag flotation tailings

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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(PDF) Copper Upgrading and Recovery Process from Mine Tailing …

The copper concentrate obtained from the flotation of tailings [30] was used as feed sample in this study. To achieve an excellent copper dissolution from the concentrate of flotation tailings ...

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Copper Recovery from Yulong Complex Copper Oxide Ore by Flotation …

Another 17.34% Cu was further recovered from the flotation tailing by magnetic separation at 0.8 T. The cumulative recovery of copper reached 91.42%. The modifier LA played a positive role in facilitating the sulfidation of copper oxide with Na2S, and the combined collector COC was better than other collectors for the copper flotation.

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Selective process route to recover magnetite from Sossego copper

This paper describes a study aiming at producing a magnetite pellet feed from a Sossego DAM copper tailing, which industrial copper flotation plant is in northern Brazil. The chemical assay and ...

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(PDF) Investigation of flotation parameters for …

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 ...

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Mineralogical characterization of copper sulfide tailings …

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 Development of Innovated Complex Process for …

The reserves of metals contained in flotation tailing in some sites may be estimated as significant due to the large volumes of wastes accumulated from decades of exploitation of some ... Chmielewski, A.G. Solvent extraction of Cu, Mo, V, and U from leach solutions of copper ore and flotation tailings. J. Radioanal. Nucl. Chem. 2017, 314, 69 ...

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Mineralogical and morphological factors affecting the separation …

A positive correlation of arsenic, copper and cadmium is observed in the flotation process. • Arsenic-copper alloys in FSF slag account for nearly 90 % of arsenic-bearing phases. • Different fates of arsenic are depended on its embeded ways. • The recombination of As-O and Cu-S affects the selectivity of copper and arsenic.

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Pressure Leaching of Copper Slag Flotation …

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 …

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Ultrasound treatment on tailings to enhance copper flotation recovery

Flotation recovery of copper sulfide from the El Teniente plant has deteriorated in recent years, in this regard ultrasound treatment of tailings for enhanced copper recovery was evaluated in laboratory experiments. The impact of the ultrasound wave was examined under different conditions, with the conclusion that improved …