effect of ph on bornite flotation

Effect Of Ph On Bornite Flotation

A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF …

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.

The Importance of pH in Flotation

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 stone 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 ...

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

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

INFLUENCE OF PYRITE CONTENT ON THE FLOTATION OF ...

Effect of pyrite content on flotation The effect of pyrite content on the flotation recovery and grade of chalcopyrite after IsaMilling is shown in Figures 3 and 4. The initial experiments (Figure 3) were carried out at a constant collector addition of 250 g/t, irrespective of the proportion of

AN INVESTIGATION OF COPPER RECOVERY FROM A …

The flotation of a natural porphyry copper ore with bornite and malachite was investigated via fundamental work with pure minerals and a bench-scale testing regime. The

Effect of pH on Copper Flotation Recovery VS Mass Pull

An example of testing the effect of pH on rougher flotation on pit samples and the results are presented. Since this is only an example, it needs reminding that not all ores will respond the same. Here, rougher flotation is most Selective at a pH of 9.5 as pH levels in the 9 to 10 range yielded 1% to 2% better recoveries. Mineralogy data also supports this and shows between 3% and 10% of the ...

Electrochemical interaction of bornite with grinding media ...

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 ...

Effect of pulp potential on the flotation of a sulfide ...

Effect of pulp potential on the flotation of a sulfide copper ore ... is likely a strong contributor to the difficulty in recovering bornite by flotation ... that the flotation time, pH, feed size ...

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

Many published articles relating to the effect of pH on oleate flotation of iron oxides. • Very few examine the effects of Eh as well as pH. • Low pH and low Eh are detrimental to the oleate flotation of iron oxides.

RECOVERY OF COPPER FROM OXIDE COPPER ORE BY …

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.

The separation of chalcopyrite and chalcocite from pyrite ...

In the rougher flotation prior to regrinding, high chalcopyrite and chalcocite recovery were obtained in conjunction with high pyrite flotation recovery due to the activation of pyrite by copper ions during primary grinding. The rougher flotation concentrate was reground in a rod mill before cleaner flotation.

TECHNICAL NOTE THE EFFECT OF pH MODIFIER ON THE …

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 when working in …

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

conditions of pulp such as the pH, type and concentration of reagents (collectors, depressants and frothers) also are the effective factors on the process efficiency. Hassanzadeh and Hasanzadeh (2016) evaluated the effect of three stone reagent configuration on selective flotation in low and high pyritic copper sulphide ores.

Effects of pH and pulp potential on selective separation ...

flotation cell. The pH was adjusted by lime and Merck sulfuric acid. Na 2 S was applied as copper minerals depressant and also flotation pulp potential adjustment. 50 g/t diesel oil was used as molybdenite collector. Flotation pulp potential measured with an ORP electrode (Ag/AgCl) in presence of nitrogen gas and air.

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

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 …

bornitic ore copper flotation difficulties

effect of ph on bornite flotation - bilalmatch.co.in. bornitic ore copper flotation difficulties - BINQ Mining 4.75·Ł.1K ratingsMar 23, 2013· Bornite flotation Crusher,crusher solution,crusher application Bornite flotation. Bornite is in many porphyry copper operations that have a complex >>Chats Online.

The Flotation of Chalcocite, Bornite, Chalcopyrite, and ...

The flotation of chalcocite, bornite, chalcopyrite, and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically. The ethylxanthate-induced flotation of each mineral is markedly dependent on electrochemical ...

The effect of grinding conditions on the flotation of a ...

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.

The Effect of Multivalent Ions on the Flotation of Coal

The Effect of Multivalent Ions on the Flotation of Coal M. S. CELIK. and P. SOMASUNDARAN COLUMBIA UNIVERSITY NEW YORK. NEW YORK 10027 Abstrect Flotation of coal generally exhibits a maximum around neutral pH. This maximum. despite the marked mineralogical heterogeneity. has been attributed to the isoelcctric point of the coal in this pH region.

Flotation of Copper Sulfide Ores - PDF Free Download

The wire shape is the least floatable, while the flakes respond well to xanthate flotation at a pH of 9–11. A pH 9 has a negative effect on the floatability of native copper. The use of Na2S has a positive effect on native copper flotation and it is known that additions of 100–500 g/t improved native copper significantly.

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