effect of ph on bornite flotation

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TECHNICAL NOTE THE EFFECT OF pH MODIFIER ON THE …

Water quality had no effect on the collectorless flotation of chalcopyrite which was very strong, in excess of 96% copper recovery, but all three lower quality waters had a detrimental effect on the recovery of bornite compared to that obtained in distilled water.

Effects of Eh and pH on the oleate flotation of iron oxides

Jan 03, 2020· In this paper, the effect of sodium butyl xanthate (NaBX) adsorption on the surface of bornite at different pH on flotation was studied by adsorption kinetic and thermodynamic. The flotation results demonstrated that the recovery was the highest when pH was 9 in NaBX solution (4×10−5 mol/L).

chalcocite flotation

flotation tests in order to recovery copper and cobalt. This paper investigates the effect of potassium amyl xanthate (PAX) and sodium dibutyl dithiophosphate (DANA) performance on both copper and cobalt recovery in single roughing flotation. The effect of pH on the flotation …

Effect of pH on the Recovery and Grade of Base Metal ...

Figure 12.29 Effect of pH adjusted with SO2 on copper flotation from the Cayeli Riz Yellow ore (lime added to the grind, 10 kg/t). followed by copper flotation. The effect of the lime–SO2 depressant system on the Cayeli Riz Yellow ore is shown in Figure 12.29. Optimum copper recovery was obtained at a pH …

NIOSHTIC-2 Publications Search - 10004717 - The Flotation ...

Jul 09, 2019· The floatability of common copper sulfide minerals is reduced in the following order: chalcopyrite > covellite > bornite > chalcopyrite. (4) The floatability of copper sulfide minerals is also affected by factors such as crystal grain size, grain size, etc. fine grain is not easy to float. Where to buy suited flotation machines and chemical agents?

Related Information Of Chalcopyrite Flotation Cell

A detailed study was conducted to evaluate the effect of particle size, pH, flotation time, collector type and addition on efficiency of tennantite flotation. It was shown that maximum copper recovery of 95,3% was obtained at pH 12.3 by lime.It was suggested to grind up to 65.72% of -0.074 mm to achieve the optimum recovery of copper and high

bornite extraction techniques

Examples of such minerals include chalcopyrite (CuFeS 2), bornite (CusFeS 4), chalcocite ... throughout the whole experiment for pH regulation, unless otherwise stated. ... Effect of pyrite content on flotation The effect of pyrite content on the flotation recovery and grade of chalcopyrite after

Flotation of Copper Sulfide Ores - PDF Free Download

Effect of pH modifier on flotation of celestite 991 at 10 -2 M, giving rise to intense mineral depression. G~ilvez [4], found a similar effect of the depressant Na2SiO 3 …

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

Fundamental adsorption, micro-flotation and Eh-pH tests were conducted on pure ... Figure 2.8- pH effect on the activation of chrysocolla and subsequent recovery with sodium ... Comparison between collectorless bornite flotation and flotation with PAX,

The Importance of pH in Flotation

Most articles published on the flotation of iron oxide minerals with oleate involve the effects of pH on the interfacial properties of the iron oxides as a function of pH, together with some attention given to the solution chemistry of the collector.

Dual effects of sodium sulfide on the flotation behavior ...

E ect of pH on Pulp Potential and Sulphide Mineral Flotation Ferihan G OKTEPE¨ Bal kesir University, Bal kesir Technical College, Bal kesir-TURKEY e-mail: [email protected] Received 29.03.2001 Abstract Control of pH is one of the most widely applied methods for the modulation of …

Adsorption kinetics and thermodynamics of sodium butyl ...

Effect Of Ph On Bornite Flotation - Bandstraverhuur Nl. Is shown that the underground mine water has a deleterious effect on flotation performance The adverse effect of the underground water was successfully negated by adding lime into the primary ball mills and increasing the pH of the slurry from a natural pH of 8 to the flotation pH of 10 5 ...

E ect of pH on Pulp Potential and Sulphide Mineral Flotation

Chrysocolla Flotation - 911metallurgist. The effect of pH on the flotation response of Chrysocolla and chalcocite with potassium octyl hydroxamate as collector The potential for the chalcocite system is slightly oxidizing A detailed electrochemical investigation of chalcocite with a collector that does not oxidize, namely a chelating compound ...

A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF …

Effect of pH on the Recovery and Grade of Base Metal Sulphides (PGMs) by Flotation Edson Muzenda, Member IAENG, Ayo S. Afolabi, Member, IAENG, Ambali S. Abdulkareem and Freeman Ntuli T Proceedings of the World Congress on Engineering and Computer Science 2011 Vol II WCECS 2011, October 19-21, 2011, San Francisco, USA ISBN: 978-988-19251-7-6

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …

sulphide minerals. Bornite (Cu 5 FeS 4) and covellite (CuS) and energite (Cu 3 AsS 4) are normally present in lesser quantities. The complete flotation of chalcocite is achieved between ph = 1 to ph = 10 with ethyl xanthate. The resulting hydrophobic species is CuX. 1. Hydroxyl as depressant (OH-)

Electrochemical interaction of bornite with grinding media ...

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY FLOTATION AND LEACHING Kiraz, Emirhan M.S., Department of Mining Engineering Supervisor: Prof. Dr. Mustafa Ümit Atalay December 2014, 65 pages The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H 2 SO 4) leaching.

Research Article The Role of pH and Solid Content of Ball ...

is shown that the underground mine water has a deleterious effect on flotation performance. The adverse effect of the underground water was successfully negated by adding lime into the primary ball mills and increasing the pH of the slurry, from a 'natural' pH of 8 to the flotation pH of 10.5. Traditionally, the pH …

Mining Industry | Copper Sulfide Ore and Flotation Process ...

In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE. This is very important. The ore may be either alkaline or Acidic. To have a positive control over flotation, it is necessary to be ...

The effect of underground mine water on performance of the ...

3.1.1 Effect of particle size Enargite ore samples of four different size fractions; >150, 75­150, 38­75 and <38µm were used separately to study and investigate effect of particle size during flotation. 25g of each size fraction was dispersed in 250mL water to prepare slurries of 10% pulp density conditioned to pH …

The effect of water quality on the collectorless flotation ...

Nov 01, 2003· Read "The effect of grinding conditions on the flotation of a sulphide copper ore, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Effects Of Underground Water On Sulphide Flotation – Made ...

This study explores the flotation behavior of chalcopyrite in the presence of different concentrations of sodium sulfide (Na 2 S·9H 2 O) at pH 12 under controlled potential conditions. It was observed that the flotation of chalcopyrite is not depressed completely when the pulp potential is low, even at high concentrations of sodium sulfide, i.e., 10 −1 –10 −2 mol/L.

pH Ranges for Sequential Cu Pb Zn Flotation | Separation

Electrochemical interaction of bornite with grinding media and its effect on flotation Article in Mineral Processing and Extractive Metallurgy IMM Transactions section C 117(4):214-220 · December ...

Centenary of Flotation Symposium - nanoparticles.org

Effects of pH and pulp potential on selective separation of Molybdenite ... flotation, the effects of pH, pulp potential, aeration by nitrogen and air ... bornite and chalcocite were identified as the minor sulphide copper phases in the concentrate. Particle size analysis

Effect Of Gold Sulfid Ores On Grinding

A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF BORNITE AND CHALCOPYRITE. ii Abstract This study was carried out to investigate the flotation and leaching behaviour of bornite and chalcopyrite when they are together as principal sulphide minerals. Bench scale flotation performance was examined both ... ph modifiers for chalcopyrite flotation

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