pyrite flotation parameters

Optimization of physicochemical parameters of pyrite flotation

Sep 23, 2016  Tailings issued from polymetallic ore flotation of Chaabat el-Hamra mine contain sulfides such as Galena (PbS), Pyrite (FeS2) and Chalcopyrite (CuFeS2). They present environmental threats such as the acid mine drainage. Chemical analysis showed that the major element of these tailings is Pyrite. The processing of the latter eliminates much of the sulfur.

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Pyrite Flotation - Froth Flotation (Sulphide Oxide ...

Can you list the factors affects the floatability of pyrite from refractory low grade ore. I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC , pH and others like pulp density and particle size (70 and 150 microns) .However how these factors affect the floatability of the pyrites from low grade refractory ore.

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[PDF] A study on the effect of active pyrite on flotation ...

Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to decrease the active pyrite recovery by flotation.

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Method for Evaluating Flotation Kinetics Parameters

Case 3-Data reported by Panuu for the flotation of-0.15/+0.10 mID and -0.20/+0.15 mm pyrite ore shown in Fig. 5 as a function of time is also treated in a similar manner and the results obtained are given in Table 1. Values for the order is found to be two in this case for

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The Flotation of Pyrite using Xanthate Collectors

The flotation properties of pyrite were found to be significantly influenced by va~iations in the pH. In acidic solutions the pyrite floatability is very high, and ... 3.1.4 Constant parameters 3. 1. 5 Flotation tests and flotation 3.2 ADSORPTION TESTS 3.2.1 Description of the apparatus 3.2.2 Preparation of ore

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Flotation of heavily oxidized pyrite in the presence of ...

Jan 01, 2018  Flotation kinetics studies the variation in the amount of froth product with flotation time and quantitative identification of all rate-controlling variables (Hernáinz and Calero, 2001).The classical first-order flotation kinetic model was used to analyse the flotation of heavily oxidized pyrite depending on the digenite amount in the presence of SBX at pH 8.5 or pH 12.1.

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A study on the effect of active pyrite on flotation of ...

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical

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Flotation kinetics of a pyritic gold ore - ScienceDirect

Jan 17, 2011  The second order flotation kinetic parameters were also computed for the pyrite component of the ore sample studied. These results are given in Table 6. Model fit of the pyrite data to second order kinetics is also much better than to that of first order kinetics.

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The Flotation of Pyrite using Xanthate Collectors

The flotation properties of pyrite were found to be significantly influenced by va~iations in the pH. In acidic solutions the pyrite floatability is very high, and ... 3.1.4 Constant parameters 3. 1. 5 Flotation tests and flotation 3.2 ADSORPTION TESTS 3.2.1 Description of the apparatus 3.2.2 Preparation of ore

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[PDF] A study on the effect of active pyrite on flotation ...

Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical parameters were evaluated in order to decrease the active pyrite recovery by flotation.

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THE INFLUENCE OF DESIGN PARAMETERS ON THE

Witwatersrand were used to investigate the effect of design parameters on the flotation of pyrite in an air-sparged hydrocyclone (ASH). In the ASH, air is sparged radially through the porous cylinder and dispersed by the high velocity of slurry in swirl flow countercurrent to the rising froth phase.

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Flotation kinetics of a pyritic gold ore - ScienceDirect

Jan 17, 2011  The second order flotation kinetic parameters were also computed for the pyrite component of the ore sample studied. These results are given in Table 6. Model fit of the pyrite data to second order kinetics is also much better than to that of first order kinetics.

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A study on the effect of active pyrite on flotation of ...

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical

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Pyrite Depressant - Froth Flotation (Sulphide Oxide ...

So when you know what the mineralogy is, you can do the entire test: Grinding to liberation, improve pH to depress pyrite, improve reagents (Aero 5100 and Aero 3894 of Cytec are very selective in copper flotation) select a depressor, and all the parameters to improve your flotation.

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Study of Flotation Parameters for Copper Recovery from ...

grained pyrite , performs interstitial 100-500 microns by size [16]. Intergrowth of pyrite, sphalerite, tennantite and other copper sulphides, difference in their activity and size create the considerable problems in implementation of selective flotation, obtaining conditional copper and zinc concentrates.

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(PDF) A study on selective flotation in low and high ...

A study on selective flotation in low and high pyritic copper sulphide ores. Ahmad Hassanzadeh. mohammad hasanzadeh. ... Related Papers. The kinetics modeling of chalcopyrite and pyrite, and the contribution of particle size and sodium metabisulfite to the flotation

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An Investigation Of The Effect Of Particle Size On ...

We have used X-ray photoelectron spectroscopy (XPS) to study the variation of surface pyrite density with coal particle size (53 4m - 250 4μm). We also detect and monitor pyrite oxidation to sulfate, an important process influencing the surface-dependency of coal-cleansing methods such as flotation. It is very likely that as coal is crushed as part of the processes employed to rid it of ...

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Flotation Parameters For Copper Sulphide Ore Pdf

Best Particle Sie For Copper Sulphide Flotation. Pyrite Flotation Froth Flotation Sulphide amp Oxide. Can you list the factors affects the floatability of pyrite from refractory low grade ore.I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages PAX Activator Copper sulphateMIBC pH and others like pulp density and particle sie 70 and 150 microns .However.

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FLOTATION PLANT DESIGN AND PRODUCTION PLANNING

of test kinetic parameters to a set of standard kinetic parameters, as shown on the right side of the table. 1 Primary data is defined as ore-specific parameters, which in the case of flotation describe the inherent floatability of the ore regardless of the plant flowsheet, equipment or operating targets and conditions. 2 Described by P 80

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The practice of pyrite flotation in South Africa and ...

The flotation of pyrite is of great importance to the gold mining industry in South Africa and Australia. The flotation plants fall into a number of categories, viz. flotation after milling, flotation of current residues and reclaimed residues, flotation of refractory ores and the flotation of gold-copper ores.

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Froth flotation: a quick overview - European Training ...

Apr 06, 2021  Chemico-physical properties of the minerals play a key role for selecting the collectors and setting the flotation parameters. All minerals are classified into nonpolar or polar types according to their surface characteristics. Relatively weak molecular bonds characterize the surfaces of nonpolar minerals. ... Pyrite, which is a naturally ...

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US5171428A - Flotation separation of arsenopyrite from ...

Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO 3 - 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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A study on the effect of active pyrite on flotation of ...

Abstract: Active pyrite is one of the most undesirable phenomena in the flotation of porphyry copper ores. Misreported pyrite into copper concentrates decreased the grade and recovery of copper. In this study, the effective parameters on the flotation process including grinding condition and chemical

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pyrite flotation - Xinhai

During the flotation process, the flotation effect of aimed minerals is influenced by many factors. In this passage, we will introduce how slurry concentration, flotation particle size, and the rotating speed of flotation cells influence pyrite flotation.

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Electrolytic flotation of pyrite, Journal of Chemical ...

The effect of the above parameters on flotation behavior will be discussed later. Pyrite flotation by xanthates has been studied quite e x t e n s i ~ e l y . ~ - ~ ~general conclusion is that diThe ~ ~ xanthogen is the only product of xanthate adsorption/ reaction on pyrite and is responsible for pyrite flotation.

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Pyrite Depressant - Froth Flotation (Sulphide Oxide ...

So when you know what the mineralogy is, you can do the entire test: Grinding to liberation, improve pH to depress pyrite, improve reagents (Aero 5100 and Aero 3894 of Cytec are very selective in copper flotation) select a depressor, and all the parameters to improve your flotation.

More

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 ...

More

Froth flotation: a quick overview - European Training ...

Apr 06, 2021  Chemico-physical properties of the minerals play a key role for selecting the collectors and setting the flotation parameters. All minerals are classified into nonpolar or polar types according to their surface characteristics. Relatively weak molecular bonds characterize the surfaces of nonpolar minerals. ... Pyrite, which is a naturally ...

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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 selective ...

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Critical importance of pH and collector type on the ...

Feb 04, 2021  Collector type and pulp pH play an important role in the lead–zinc ore flotation process. In the current study, the effect of pulp pH and the collector type parameters on the galena and ...

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FLOTATION PLANT DESIGN AND PRODUCTION PLANNING

of test kinetic parameters to a set of standard kinetic parameters, as shown on the right side of the table. 1 Primary data is defined as ore-specific parameters, which in the case of flotation describe the inherent floatability of the ore regardless of the plant flowsheet, equipment or operating targets and conditions. 2 Described by P 80

More

An Investigation Of The Effect Of Particle Size On ...

We have used X-ray photoelectron spectroscopy (XPS) to study the variation of surface pyrite density with coal particle size (53 4m - 250 4μm). We also detect and monitor pyrite oxidation to sulfate, an important process influencing the surface-dependency of coal-cleansing methods such as flotation. It is very likely that as coal is crushed as part of the processes employed to rid it of ...

More

Coupling mineralogy with physicochemical parameters in ...

Keywords: copper ore, flotation, quantitative mineralogy, physico chemical factors 1. Introduction 1.1. Geology The Chelopech mine located in Bulgaria is a part of the Dundee Precious Metals (DPM) group from Canada. The underground mine and the associated flotation plant produce copper and pyrite

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Minerals Free Full-Text Selective Flotation of Pyrite ...

Since flotation selectivity and separation efficiency are dependent on the reagent concentrations, pulp redox potential and slurry pH in the conditioning stage, rigorously controlling of these parameters is also considered necessary for the prevention of depressing the pyrite .

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Treatment of Old Pyrite Flotation Tailings for Recovery of ...

The effects of temperature, pH, and duration of the biooxidation of old pyrite flotation tailings on the recovery of gold by carbon-in-pulp cyanidation were investigated. The best technological parameters of the biooxidation step for recovery of gold from the leach residue were the temperature of 35°C, pH 1.2– 1.5, biooxidation for 12 days.

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The Effect of Bubble Surface Area Flux on Flotation ...

Pyrite (FeS 2) particles of eight size classes containing -37, -53+37, -75+53, -106+75, -212+106, -300+212, -420+300 and -500+420 µm were used for flotation experiments. Chemical composition of the pyrite sample is given in Table 1. The frother was Table 1: Chemical composition of Pyrite used in the experiments (XRF).

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