pyrite flotation in copper tails

pyrite flotation in copper tails

Recovery of pyrite from copper tailings by flotation ...

Sep 01, 2019 · 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 and originates a serious environmental problem.

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Resource Potential of Stale Flotation Tails of Copper ...

Keywords: Concentration tails, copper-pyrite ore deposits, material composition, gold, silver, technologies, processing. INTRODUCTION In the tailings of the mining enterprises of the Southern Urals copper-pyrite complex, the largest of them is the Uchalinsky GOK, to date, tens of millions of tons of stale flotation tailings

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Effects of Pyrite Texture on Flotation Performance of ...

Oct 18, 2021 · Pyrite particles, having framboidal/altered texture, are known to significantly affect pulp chemistry and adversely affect flotation performance. Therefore, the main objectives of this study were to demonstrate influence of pyrite mineralogy on the flotation of copper (sulphidic) ores and develop alternative conditions to improve the performance.

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Recovery of metal values from copper slags by flotation ...

The second route was flotation of the slags, roasting of the flotation tailings with pyrite and leaching. The second route was found to be suitable for

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Influence of gold mineralogy on its flotation recovery in ...

The present study investigates the effect of regrinding and aeration on the separation of pyrite from gold in copper rougher flotation tailings (0.07% Cu, 0.61g/t Au, tail grades).

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Resource Potential of Stale Flotation Tails of Copper ...

Keywords: Concentration tails, copper-pyrite ore deposits, material composition, gold, silver, technologies, processing. INTRODUCTION In the tailings of the mining enterprises of the Southern Urals copper-pyrite complex, the largest of them is the Uchalinsky GOK, to date, tens of millions of tons of stale flotation tailings

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Recovery of metal values from copper slags by flotation ...

Coarse copper metal was present in the flotation tails for this test suggesting the pre-flotation screen size was too coarse. ... recovery of cobalt from a copper flotation tailing (pyrite ...

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Characterisation of sphalerite and pyrite flotation ...

Jun 01, 2003 · Sphalerite and pyrite particles reporting to the concentrate after 2 min of flotation and tail samples were collected and analysed by XPS and ToF-SIMS. In this concentrate sample, 67 wt.% sphalerite and 5 wt.% pyrite were recovered while the tail sample contained 7 wt.% sphalerite and 89 wt.% pyrite. 3.2.1.

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Method of floatation of copper-zinc-pyrite ore (versions)

1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used is supplied in the following sequence composition

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The Adsorption of Cu Species onto Pyrite Surface and Its ...

Jan 17, 2016 · The adsorption of Cu species onto pyrite surface and its effect on flotation were investigated by using microflotation tests, first-principle calculations, and XPS surface analysis. The results indicated that the flotation of pyrite appears to be activated with CuSO4 only at alkaline pH, while being depressed at acidic and neutral pH. The

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Nitrogen flotation of pyrite in a continuous minicell at ...

Jan 01, 1990 · Attempts to float pyrite without collector addition gave recoveries of only around 3% with a grade of 33% Fe. This proves that the use of collector is necessary for pyrite flotation. Tails from pyrite flotation were fed to a second minicell for sphalerite flotation in which three options were tersted: 1. 1. CuSO 4 addition; no CaO addition. 2. 2.

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Copper Flotation - Mineral Processing & Metallurgy

May 16, 2016 · A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more parallel ...

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REPROCESSING OF THE OLD FLOTATION TAILINGS

the copper content) were produced during that period, as illustrated by Figure 1. According to the RTB Bor archive and the pub-lished data [19], the average copper content in the processed ores varied from 4%, at the very beginning to 0.6% at the end of the Old Flotation Plant works. Copper content in the flotation tailings had been

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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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The depression of pyrite in selective flotation by ...

Introduction. Pyrite (FeS 2, iron disulfide), is the most abundant sulfide mineral and commonly associated with valuable minerals such as sphalerite, chalcopyrite, galena, gold as well as coal (Wang and Forssberg, 1991, Wang, 1995, Dimitrijevic et al., 1996, Jiang et al., 1998).Pyrite has very low economic significance and is usually removed from the valuable components by

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Copper-Lead-Zinc ores - Danafloat

The zinc reporting to the bulk flotation tails feeds the zinc circuit which is operated as previously described in the lead-zinc flotation section. Which flotation scheme used in the differential copper-lead bulk concentrate separation is generally and often dependent upon which mineral has the greater mass in the bulk concentrate.

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EP0568672B1 - Flotation separation of arsenopyrite from ...

Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO3- ions at elevated temperature and pH below about 8 for a period sufficient to impart a selective depression property to the arsenopyrite. On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings ...

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ore of copper pyrite concentrate - thetipsypizza

Method of floatation of copper-zinc-pyrite ore (versions) 1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used

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projects related to flotation of pyrite from gogi ore

12/08/2020· Projects Related To Flotation Of Pyrite From Gogi Ore. Pyrite Activation in the Lead Zinc Tailings Recovery Xinhai. Most non ferrous metals are metal sulfides ores, such as lead zinc ore, copper sulfide, which often coexist with a large number of pyrites.Pyrite is the main raw material for industrial sulfuric acid, but China is a leading manufacturer and consumer of

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Pyrite Depression - Froth Flotation (Sulphide & Oxide ...

From the lead tail we have to recover sphalerite depressing pyrite. Now we use copper sulphate to activate cyanide depressed sphalerite while doing so we must ensure that pyrite is not activated. Copper added to lead tails has to do two functions: To remove cyanide/zinc cyanide from the sphalerite surface Form copper layer or patches on ...

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Characterisation of copper flotation products utilizing ...

Flotation tests resulted in 62-80% of the arsenic reporting to cleaner tails, along with 7.4-14.1% of the liberated copper. It was concluded that although chalcopyrite and tennantite were ...

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projects related to flotation of pyrite from gogi ore

12/08/2020· Projects Related To Flotation Of Pyrite From Gogi Ore. Pyrite Activation in the Lead Zinc Tailings Recovery Xinhai. Most non ferrous metals are metal sulfides ores, such as lead zinc ore, copper sulfide, which often coexist with a large number of pyrites.Pyrite is the main raw material for industrial sulfuric acid, but China is a leading manufacturer and consumer of

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MINERALOGICAL CHARACTERISTICS OF COPPER FLOTATION

It is found out that relatively high amount of chalcopyrite is concentrated in the finest fractions as particles below 9 µm, especially in copper rougher and copper final concentrate. Class 20 – 36 for all samples (except Cu rougher tail) contains low chalcopyrite and the highest pyrite content due to the better pyrite flotation.

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Copper Flotation - Mineral Processing & Metallurgy

May 16, 2016 · A Copper Flotation Flowsheet. Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two or more parallel ...

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Copper-Cobalt ores - Danafloat

Differential flotation sequence: A differential copper-cobalt flotation separation which begins with selective copper flotation by raising the slurry pH to 10 with lime and using a dithiophosphate copper collector. The tails produced in the first differential flotation step is followed by a pyrite and pyrrhotite flotation stage using xanthate ...

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REPROCESSING OF THE OLD FLOTATION TAILINGS

the copper content) were produced during that period, as illustrated by Figure 1. According to the RTB Bor archive and the pub-lished data [19], the average copper content in the processed ores varied from 4%, at the very beginning to 0.6% at the end of the Old Flotation Plant works. Copper content in the flotation tailings had been

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Copper-Lead-Zinc ores - Danafloat

The zinc reporting to the bulk flotation tails feeds the zinc circuit which is operated as previously described in the lead-zinc flotation section. Which flotation scheme used in the differential copper-lead bulk concentrate separation is generally and often dependent upon which mineral has the greater mass in the bulk concentrate.

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Altiplano Receives Approval for Industry Leading Water ...

1 天前 · Altiplano has generated greater than US$7.2 million from the recovery and sale of approximately 3.6 million pounds of copper with an average grade of

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ore of copper pyrite concentrate - thetipsypizza

Method of floatation of copper-zinc-pyrite ore (versions) 1. Method of flotation of copper-zinc-pyrite ore, including grinding in an alkaline medium, air conditioning with reagents - collectors and frothers, collective copper-zinc flotation to produce collective concentrate containing copper minerals and natural-activated sphalerite, and tails, characterized in that as the collector used

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Replacing Dichromate with Polysaccharide Depressant in Cu ...

Aug 27, 2021 · Bulk flotation tail was floated to collect gold bearing pyrite. When dichromate was permitted, qualified copper concentrate and lead concentrate were obtained from both ores of caves 740 and 780. However, since environmental policy was strengthened, banning dichromate usage in flotation, copper-lead separation has been poor even after various ...

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North Island Copper and Gold Project, Vancouver Island ...

Pyrite will be recovered from the bulk copper-molybdenum flotation rougher tails in a pyrite scavenger flotation circuit. The concentrate will be combined with the tails from the bulk cleaner circuit and processed in a pyrite upgrade flotation step to produce a

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Statistical comparison of hydrophobic and hydrophilic ...

Statistical comparison of hydrophobic and hydrophilic species on galena and pyrite particles in flotation concentrates and tails from TOF-SIMS evidence

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Improved Statistical Methods Applied to Surface Chemistry ...

A chalcopyrite/pyrite/ sphalerite mineral mixture conditioned at pH 9 for 20 minutes to study transfer of Cu from chalcopyrite via solution to the other two mineral surfaces, since this mechanism can be responsible for their inadvertent flotation in copper recovery, showed no statistical difference in the copper intensities on pyrite and ...

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