effect of ph on copper flotation

EFFECT OF CLAY MINERALS ON FROTH STABILITY IN …

EFFECT OF CLAY MINERALS ON FROTH STABILITY IN MINERAL FLOTATION: A ... chlorite,(in ore F) have the most deleterious effect on the copper flotation. Kaolinite and illite (in ore A), on 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 …

A STUDY ON THE EFFECT OF SOME OPERATING …

time, and pH on the flotation kinetics of the copper minerals has been studied. Thus, the effect of each above- mentioned parameter on the recovery in the infinite time and thekinetic constant of ...

1 Froth Flotation – Fundamental Principles

will produce compensating effects in other areas (Klimpel, 1995) Froth flotation is a good example of an engineering "system", in that the various important parameters are highly inter-related, as shown in Figure 1. It is therefore important to take all of Chemistry Components Collectors Frothers Activators Depressants pH

The Effect of Sulfurization Process on Flotation of Copper ...

The Effect of Sulfurization Process on Flotation of Copper Ore Containing Gold and Silver ... Figure 1: The effect of pH on the flotation yield As seen in Figure 1, the best of flotation yield was at pH 11.0. Vol.7, No.3 The Effect of Sulfurization Process 197 ...

Effect of Grinding Environment on Galena Flotation

Effect of Grinding Environment on Galena Flotation ... (DMP), copper (II) sulphate (0.01 M) and phosphate buffer (pH 7.0) used in the analytical method for determining H 2O ... Effect of pH on the flotation recovery of galena with air atmosphere during the flotation.

Effect of pH, Concentration and Temperature on Copper and ...

Effect of pH, Concentration and Temperature on Copper and ... the mining industry as flotation reagents as well as fungicides in the agricultural industry (Durand-Keklikian and Matijevi ć, 1990; Hidmi ... Equations 1 to 4 as a function of pH, copper concentration and temperature (Eh=0.25 V

copper ore impact flotation cell design

For example, froth flotation is a technique commonly used in the mining industry. .. flotation is carried out, for oxidation of the pyrite and the pH regulating effect to Separation of copper sulfide minerals from the gangue is normally carried on .

EFFECT OF pH ON SURFACE CHARACTERISTICS AND …

EFFECT OF pH ON SURFACE CHARACTERISTICS AND FLOTATION OF SULFIDIZED CERUSSITE Qicheng FENG *, Shuming WEN ... sulfidization flotation method. Oxidized lead, zinc and copper minerals are known to ... to flotation to enhance the hydrophobicity of the mineral surface (Banza and Gock, Effect of pH on surface characteristics and flotation of ...

Effect of feed preparation on copper activation in ...

Effect of feed preparation on copper activation in flotation of Mt Keith pentlandite Y. J. Peng*1,2 and D. Seaman2,3 In this work, the effect of copper sulphate on the flotation …

Effect of copper ions on the flotation separation of ...

Flotation results indicated that copper ions dramatically reduced the recoveries of copper and molybdenum, and increased the inhibition effect of sodium sulfide; that is, the flotation separation of chalcopyrite and molybdenite was seriously hindered by copper ions.

Low pH trial in the Ernest Henry Mining Copper Rougher ...

At high pH values (above 10.5), the forged media is passivated, so as the pH of the system drops the media corrosion rate increases and floods the system with the corrosion products, affecting flotation. As the high chrome media is much more inert, pH has less of an effect on copper flotation response.

The interaction of pH modifiers with kaolinite in copper ...

The pH in the flotation was adjusted using AR grade hydrated lime (Ca(OH) 2) and soda ash (Na 2 CO 3). These reagents except soda ash are used in the industrial flotation of the copper–gold ore examined in …

EFFECTS OF EDTA ON SELECTIVE FLOTATION OF SULPHIDE …

Unwanted activation and flotation of sphalerite in a complex lead/zinc ore or copper/zinc ore is an example to this type of behaviour. Therefore, determination of the degree of oxidation, surface species and their influence on flotation behaviour is necessary to develop processing strategies to minimize the negative effect of oxidation on ...

Interaction of copper(II) ions with pyrite and its ...

Time‐dependent adsorption studies were carried out to elucidate the influence of pH on the copper adsorption rate, considering also the different copper oxidation states. ... Challenges and opportunities in the recovery/rejection of trace elements in copper flotation-a review, Minerals ... Effect of regrinding conditions on pyrite flotation ...

(PDF) Effect of iron content in sphalerite on flotation ...

Flotation rate constant (top) and maximum recovery (bottom) for ZnS and (Zn, Fe)S as a function of particle size and copper increase in bubble–particle collision efficiency (e.g., Pyke sulphate concentration in mixed mineral experiments at pH 11.0 in the et al., 2003).

The use of seawater as process water in concentrating ...

effect of using seawater as process water was investigated by using different type of collectors. The object of the second phase was to conduct flotation tests in synthetic seawater and tap water with varying dosages of lime, and observe the effects on pH, and on the recoveries of copper…

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

Dual effects of sodium sulfide on the flotation behavior of chalcopyrite: I. Effect of pulp potential. Authors; Authors and affiliations ... Effect of pH on pulp potential and sulphide mineral flotation ... Depression mechanisms of sodium bisulphite in the xanthate-induced flotation of copper activated sphalerite, Int. J. Miner. Process., 79 ...

Effect of pH on Flotation | Ph | Redox - Scribd

Effect of pH on Flotation - Download as PDF File (.pdf), Text File (.txt) or read online. ... Flotation of Mixed Copper Oxide and Sulphide Minerals With Xanthate and Hydroxamate Collectors. ... . Janetski N.. New York and London. "Natural Olephicity/Hydrophobicity of Sulphide Minerals II.K.. "Electrochemical Effects in Flotation of a ...

The Effect of Sulfurization Process on Flotation of Copper ...

The effect of process water salinity on flotation of copper ore from ... from Lubin mining region (SW Poland) ... of flotation of ores mined in Lubin Mining Region has ..... types of water, balanced for copper, silver and organic carbon.

Development of a Combined Flotation and High Pressure ...

The present study focused on the re-processing of copper and nickel from mine tailings. In this work, recovery of copper and nickel from mine tailing by combined process of flotation and high pressure oxidative leaching were considered. In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined.

(PDF) Effect of cuprous cyanide, dry and wet milling on ...

Effect of cuprous cyanide, dry and wet milling on the selective flotation of galena and sphalerite M.D. Seke and P.C. Pistorius Abstract Batch flotation tests of a lead–zinc sulphide composite ore from the Rosh Pinah Mine have been carried out at pH 8.5 in the presence of copper cyanide complexes.

Improving Flotation of Sphalerite - Effect of pH and ...

The effect of pH and electrochemical potential on copper uptake, xanthate adsorption and the hydrophobicity of sphalerite were studied from flotation practice point of view using electrochemical and micro-flotation techniques.

Effect of Copper and Iron Ions on the Sulphidizing ...

In order to study the influence of S 2−, Cu 2+, and Fe 3+ ions on the flotation of copper oxide, the flotation experiments with various pH values and different amount of Na 2 S, CuSO 4, and FeCl 3 were conducted. The results of copper oxide flotation are shown in Figure 3. The recovery of CuO under different pH conditions is shown in Figure 3(a).

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 EFFECT OF COPPER SULPHATE ON FROTH STABILITY

THE EFFECT OF COPPER SULPHATE ON FROTH STABILITY Wadzanai Nyabeze BSc(Eng) in Chemical Engineering, University of Cape Town ... The decrease in froth stability could have an effect on the overall flotation performance as a result of possible activation of gangue minerals by copper sulphate . Page | v ... 4.3.1 Effect of pH on the zeta potential ...

Effect of pH on Flotation | Ph | Redox - Scribd

Effect of pH on Flotation - Download as PDF File (.pdf), Text File (.txt) or read online. ... Flotation of Mixed Copper Oxide and Sulphide Minerals With Xanthate and Hydroxamate Collectors. ... and Labonte G. Pyrite". and Shergold H. "Electrochemical Effects in Flotation of a Turkish Complex Ore".F. 53-58. 1990a. (Sect.. 1978.

E ect of pH on Pulp Potential and Sulphide Mineral Flotation

E ect of pH on Pulp Potential and Sulphide Mineral Flotation ... Control of pH is one of the most widely applied methods for the modulation of mineral flotation. In this study the e ect of pH on potential in solution and sulphur minerals flotation is discussed with various

INVESTIGATION OF EFFECTIVE PARAMETERS FOR …

Finally, Section 4 analyzes the effect of some of the factors on the flotation of molybdenum and copper. ... The flotation pH in most of the plants is above 10 and most often over 11. The relatively high pH used in the operating plants is not ... 1. Flotation of copper at different pH is associated with the type of frother used. With certain ...

The Importance of pH in Flotation

The Importance of pH in Flotation View Larger Image; In flotation, pH control is a vital method to control selective mineral separation. ... however, that before either of them can have any effect on the surfaces of the gangue particles, they first neutralize the acidity and precipitate the dissolved salts that may be present in the water of ...