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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(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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(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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Potentially Exploitable Reprocessing Routes for Recovering Copper …

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 changes arising in the …

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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

The present study investigated the extraction of gold and copper from gold sulfide flotation tailings using a cyanide-free leaching method, i.e., glycine-ammonia solution in the presence of permanganate. The characterization indicated that the tailings sample contained 1.11% copper, 10.10% iron and 2.1 ppm gold.

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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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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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Thin-layer heap bioleaching of copper flotation tailings containing

Thin-layer heap bioleaching of copper flotation tailings containing high levels of fine grains was carried out by mixed cultures on a small scale over a period of 210 d. Lump ores as a framework were loaded at the bottom of the ore heap. The overall copper leaching rates of tailings and lump ores were 57.10wt% and 65.52wt%, respectively. The dynamic shifts of microbial …

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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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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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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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Heavy metal and nutrient uptake in plants colonizing post-flotation

Copper ore mining and processing release hazardous post-flotation wastes that are difficult for remediation. The studied tailings were extremely rich in Cu (1800 mg kg −1) and contaminated with Co and Mn, and contained very little available forms of P, Fe, and Zn.The plants growing in tailings were distinctly enriched in Cu, Cd, Co, Ni, and Pb, and the concentration of copper …

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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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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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Statistical investigation of flotation parameters for copper recovery

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 affecting …

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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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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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Estimated Water Requirements for the Conventional …

General Description of Ore Processing in a Conventional Copper Flotation P lant 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. To prepare ore for the flotation

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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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(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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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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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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Selective Recovery of Mushistonite from Gravity Tailings of Copper…

Based on this hypothesis, process mineralogy and the flotation of copper–tin tailings were studied to recover mushistonite. Experimental results confirmed that flotation of copper–tin tailings, using BHA as the collector, was feasible. It provided an economical and realistic method for the use of mushistonite.

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Recovery of pyrite from copper tailings by flotation

Keywords: Copper tailing, Pyrite recovery, Flotation, Split factor Accumulated recoveries as a time function of the rougher, scavenger, cleaner, and recleaner flotation stages.

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Ultrasound treatment on tailings to enhance copper flotation recovery

As ore grades fall, the amount of tailings production for the same copper production is expected to rise. 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.

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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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Experimental Study of the Sulphatizing Roasting of Flotation Tailings

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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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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