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(PDF) Dewatering of Copper Flotation Tailings: Effect …
Thickener feed dilution is often used for enhanced flocculation and sediment compressibility. This work investigated the effect of feed dilution on thickener performance for copper flotation...
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Research on the Process of Sulphatizing Roasting of Copper Slag
However, it has become apparent that copper slag flotation tailings can meet resource requirements under certain circumstances. Besides copper, zinc and cobalt can also be obtained from slag ...
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Ferric leaching of copper slag flotation tailings
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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Ferric leaching of copper slag flotation tailings
Copper can be recovered from the slags by froth flotation after cooling, crushing, and grinding. 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.
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Estimated Water Requirements for the Conventional …
Figure 1 is a generalized diagram of a conventional copper flotation plant from the point where ore first enters the circuit to the production of concentrate and tailings.
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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 separated as tailings.
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Recovery of cobalt and copper through reprocessing of tailings …
The roughing flotation of tailings was achieved at laboratory (14 min) using a Denver D-12 mechanical machine with the impeller speed kept at 1350 rpm (Fig. 3).The yields in copper and cobalt were studied versus the reagents dosage. The reagents were introduced in the slurry to be floated while keeping constant (0.1) the ratio of dosages.
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(PDF) Static tests to assess acid mine drainage potential of copper
Most copper flotation tailings contain a significant amount of sulfide minerals that can generate effluent resulting from the oxidation of sulfides when they are exposed to oxygen and water.
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Mineralogical characterization of copper sulfide tailings using
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) integrated with scanning …
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Leaching of Metals from Flotation Tailings of a Copper Smelter …
This study investigated leaching of metals i.e. Cu, Co and Zn from flotation tailings of a copper smelter slag using sulphuric acid solutions in the absence/presence of hydrogen peroxide.
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The Development of Innovated Complex Process for Treatment …
A sample of old pyrite flotation tailings obtained at an industrial concentrator was used. The main elements contents and mineral composition of the old pyrite flotation tailings are presented in Table 14 and Table 15 and Figure 4. The sample was milled using an LDI-65 disc eraser (Techoborudovanie, Saint Petersburg, Russia) and then mixed to ...
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Dynamic froth stability of copper flotation tailings
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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Bioleaching of Copper From Old Flotation Tailings Samples (Copper Mine
Bioleaching of samples taken from depths of 10, 15, and 20 m from old flotation tailings of the Copper Mine Bor was conducted in shaken flasks using the extremely acidic water of Lake Robule as ...
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Copper recovery from copper slags through flotation enhanced by …
The mass fraction of the total copper of tailings in flotation products was determined through an inductively coupled plasma optical emission spectrometer (ICP-OES, optima 4300 DV, Perkin Elmer). Through the ICP method, a minimum of 0.2 g of the samples are fused at LPG temperature followed by an acidification for conversion into a solution. ...
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Development of copper recovery process from flotation tailings by …
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, which consist of chalcopyrite as the major copper component, high‒pressure leaching (HPL) was conducted using an autoclave under a variety of sulfuric acid concentration (0–0.5 …
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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, ... Cleaner flotation tailings are returned to the head of the rougher flotation circuit for retreatment. In many milling circuits, particularly if coarse grinding is used, the ...
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Development of copper recovery process from flotation tailings by …
In addition, it is expected that more tailings will be produced in the coming years due to the increased exploration of low-grade copper ores. Therefore, this research aims to develop a copper recovery process from flotation tailings using high-pressure leaching (HPL) followed by solvent extraction.
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Reprocessing of copper and molybdenum by flotation method …
Shows that the low-grade fresh tailing is a valuable resource for reprocessing copper and molybdenum by flotation method. Increases the flotation quality by a combination of two …
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Improving Flocculation Performance of Copper Flotation Tailings …
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 …
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Extraction of Gold and Copper from Flotation Tailings Using …
Minerals 2022, 12, 612 3 of 12 ores. The study showed that 85.1% of gold was dissolved into leachate from different ores by leaching with glycine (1.5 kg/t) and potassium permanganate (3 kg/t) for ...
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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 separated as …
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Investigation of the optimal technology for copper leaching from …
This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 °C was 50%, the maximal leaching degree was achieved after 30 minutes.
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(PDF) Extraction of Gold and Copper from Flotation Tailings …
This study presents the novel idea of a cyanide-free leaching method, i.e., glycine–ammonia leaching in the presence of permanganate, to treat a low-grade and copper-bearing gold tailing.
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Dewatering of Copper Flotation Tailings: Effect of Feed
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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(PDF) Investigation of flotation parameters for copper …
We conducted a 2⁴ factorial design on the main parameters that influence flotation performance. The results showed an optimum flotation condition at dosages of 80 g/t, 30g/t, and 150 g/t of...
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Dynamic froth stability of copper flotation tailings
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 was subsequently dried and the …
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Utilization of Copper Flotation Tailings in Geopolymer Materials …
Copper flotation tailings (FTs), resulting from the separation and beneficiation processes of ores, are a significant source of environmental pollution (acid mine drainage, …
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Linking ores flotation results to the Kinsenda copper deposit
The effects from particles size in tailings, and the reagents' suite components and their dosages on the copper flotation efficiency were investigated. Flotation results were significantly improved when tailings contain 70% particles with size smaller than 106 μm were floated using a reagents suite including 3600 g per t NaHS (sulphidiser ...
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Improving Flocculation Performance of Copper Flotation Tailings …
Request PDF | Improving Flocculation Performance of Copper Flotation Tailings by Conventional and New Technology Polymers | The dewatering of tailings is one of the serious challenges that the ...
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Economic potential and environmental impact of metal recovery …
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 potential of CSFT.
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