role of ph in flotation of copper
Welcome to the broken dawn

role of ph in flotation of copper

The Importance of pH in Flotation - 911 Metallurgist

2015-8-10  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

More

Reduction of pH modifying agent in the flotation of

In the flotation separation of various minerals, pH plays an important role. Indeed, where possible flotation is carried out in an alkaline medium as most collectors, including xanthates, are stable under alkaline conditions and the corrosion of cells, pipework and the like is minimized.

More

Copper Flotation - 911 Metallurgist

2016-5-16  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

More

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

2011-9-10  PGMs. Flotation depends on a number of factors which include particle size, pulp density, reagent dosage and pH. In practice, selectivity in complex separation is dependent on a balance between reagent dosages and pH [1]. Thus reagents and pH should be delicately balanced to achieve optimum recoveries and grade. Previous studies on the

More

Sulphidizing reactions in the flotation of oxidized

1974-5-1  It has been found that the pH of activation is more important than the pH of flotation. The influence of the pH of activation on flotation conducted at pH 8.5 is illustrated in Fig.6, where all the presented results were obtained in experiments with decantation and replacement of the sulphidizing solution. In Fig.7 the flotation of natural and ...

More

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

2021-2-4  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 ...

More

The role of cations in copper flotation in the presence

2016-10-1  The previous study indicated that the presence of bentonite decreased copper flotation recovery mainly through the high pulp viscosity, with a less amount of froth generating on the top of pulp phase (Wang et al., 2015).In clay science, it is well-known that bentonite viscosity could be reduced by using salt water (Komine et al., 2009, Lagaly and Ziesmer, 2003, Suzuki et al., 2005).

More

Flotation Reagents - 911 Metallurgist

2016-6-8  How much Flotation Sulphidizer is needed. Sulphidizers are usually fed into the conditioner just ahead of the flotation circuit. The quantity required varies with the characteristics of the ore and may range from .5 to 5 lbs. per ton. Conditioning time should be carefully determined and an excess of sulphidizing reagent avoided. Flotation pH ...

More

Role of Sodium Sulfide - Copper Lead Zinc Ore

2018-7-17  This review on the role of sodium sulfide in the flotation of copper, lead, and zinc ores resulted in the following conclusions: In mineral pulps though oxygen is one of the oxidants of S²- and HS- ions, the rate of oxidation is markedly increased as a

More

Flotation Conditioners -Modifiers -Activators

2015-8-10  Flotation Conditioners -Modifiers -Activators -Depressants. This branch of chemicals will prepare the mineral surface so other reagents will be able to collect the metal. For Conditioners and Modifiers, it may be simply cleaning the surface of the

More

what ph is commonly used in copper ore flotation

Flotation of mixed copper oxide and sulphide minerals with xanthate ... used in this laboratory scale investigation was 70% sulphide ore and 30% oxide ore on a weight basis. The ... ore. Until recently, flotation of copper oxides would normally have .... the pulp for flotation was the natural pH of the ground ore, at. Read more

More

Reduction of pH modifying agent in the flotation of

In the flotation separation of various minerals, pH plays an important role. Indeed, where possible flotation is carried out in an alkaline medium as most collectors, including xanthates, are stable under alkaline conditions and the corrosion of cells, pipework and the like is minimized.

More

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

2011-9-10  PGMs. Flotation depends on a number of factors which include particle size, pulp density, reagent dosage and pH. In practice, selectivity in complex separation is dependent on a balance between reagent dosages and pH [1]. Thus reagents and pH should be delicately balanced to achieve optimum recoveries and grade. Previous studies on the

More

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

2021-6-18  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.

More

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

2021-2-4  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 ...

More

The Critical Role of Pulp Density on Flotation Separation ...

2018-7-26  minerals Article The Critical Role of Pulp Density on Flotation Separation of Nickel-Copper Sulfide from Fine Serpentine Yawen Gao 1, Guofan Zhang 1,2,*, Mengtao Wang 1 and Dezhi Liu 1 1 Department of Mineral Engineering, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; [email protected] (Y.G.); [email protected] (M.W.);

More

Interpreting the role of reagents in the flotation of ...

2009-8-26  copper ions at the surface to form a hydrophobic species WIESE, J.G., BECKER, M., BRADSHAW, D.J. and HARRIS, P.J. Interpreting the role of reagents in the flotation of platinum bearing Merensky ores. International Platinum Conference ‘Platinum Surges Ahead’, The Southern African Institute of Mining and Metallurgy, 2006.

More

Flotation separation of chalcopyrite from galena by

2016-1-20  Fig. 2 Flowsheet of closed-circuit flotation test of copper/lead bulk concentrate same way used in micro-flotation tests. 1.0 g sample was settled in 20 mL reagent solution at pH 6.5 and agitated for 30 min, filtrated and flushed 3 times with the corresponding pH buffer solution. The treated sample was dried in a vacuum desiccator for infrared

More

Feasibility Study of Differential Flotation of Cu–Pb–Zn ...

2020-8-28  In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO2. The experimental design methodology (RSM) was conducted to investigate the effect of ...

More

Enhancing flotation separation of chalcopyrite and ...

2021-3-18  As for the talc type Copper-Nickel Sulfide Ores, the talc entrained in flotation concentrate with foam will affect the grade of copper sulfide ore, so gum Arabic (GA) is a good depressant to ...

More

Reduction of pH modifying agent in the flotation of

In the flotation separation of various minerals, pH plays an important role. Indeed, where possible flotation is carried out in an alkaline medium as most collectors, including xanthates, are stable under alkaline conditions and the corrosion of cells, pipework and the like is minimized.

More

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

2011-9-10  PGMs. Flotation depends on a number of factors which include particle size, pulp density, reagent dosage and pH. In practice, selectivity in complex separation is dependent on a balance between reagent dosages and pH [1]. Thus reagents and pH should be delicately balanced to achieve optimum recoveries and grade. Previous studies on the

More

Recovery of copper and cobalt in the comparative

2020-4-16  99.63%. At pH 11, the curve of the PAX is better than DANA, giving a concentrate at 16.1% copper with a yield of 99.05%. Thus, the copper recovery is quick at natural pH with the DANA until the fifth minute. After the fifth minute of flotation, the PAX is better. At pH=11, PAX have a good selectivity.

More

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

2018-3-11  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).

More

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.

More

Feasibility Study of Differential Flotation of Cu–Pb–Zn ...

2020-8-28  In this research, flotation of copper, lead and zinc minerals from a copper oxide–sulfide ore was studied. The identification tests showed that the sample is a mixture of quartz, chalcopyrite, galena, cerussite, hemimorphite and iron oxide minerals with 5.04% CuO, 1.61% PbO, 2.07% ZnO and 56.40% SiO2. The experimental design methodology (RSM) was conducted to investigate the effect of ...

More

Removal of copper (II) from aqueous solutions by

Flotation is a separation technology for removing toxic heavy metal ions from aqueous solutions. Here a simple and rapid flotation procedure is presented for the removal of copper(II) from aqueous solutions. It is based on the use of polyaluminum chloride silicate (PAX-XL60 S) as coagulant and flocc

More

CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

2015-10-19  In this model the role of the oxygen is to oxidise lattice sulphide ion to sulphur. Flotation of Galena (PbS) Complete flotation of galena is achieved from pH 2 to pH 10 using ethyl xanthate The collector adsorption mechanisms were discussed above. The hydrophobic metal-collector species responsible for flotation is PbX 2.

More

1 Froth Flotation – Fundamental Principles

2009-8-27  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 Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration

More

Flotation - SGS

of flotation cell hydrodynamics, SGS Minerals Services has the expertise to provide you with reliable data and solutions for more efficient flotation. SULPHIDE FLOTATION SGS Minerals Services has over 70 years of experience in the design and evaluation of sulphide base metal flotation regimes, with more than a thousand ores including the minerals

More

Reduction of pH modifying agent in the flotation of

In the flotation separation of various minerals, pH plays an important role. Indeed, where possible flotation is carried out in an alkaline medium as most collectors, including xanthates, are stable under alkaline conditions and the corrosion of cells, pipework and the like is minimized.

More

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

2011-9-10  PGMs. Flotation depends on a number of factors which include particle size, pulp density, reagent dosage and pH. In practice, selectivity in complex separation is dependent on a balance between reagent dosages and pH [1]. Thus reagents and pH should be delicately balanced to achieve optimum recoveries and grade. Previous studies on the

More

Recovery of copper and cobalt in the comparative

2020-4-16  99.63%. At pH 11, the curve of the PAX is better than DANA, giving a concentrate at 16.1% copper with a yield of 99.05%. Thus, the copper recovery is quick at natural pH with the DANA until the fifth minute. After the fifth minute of flotation, the PAX is better. At pH=11, PAX have a good selectivity.

More

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

2018-3-11  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).

More

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.

More

Characterization and Flotation of Sulfur from Chalcopyrite ...

2013-12-24  Flotation Tests. Collector, dispersant and pH are among the parameters examined in the sulfur flotation tests. The tailings from the sulfur flotation were subjected to halcopyrite c flotation to recover copper value. (a) Effect of collector. Sulfur is known for

More

CHAPTER 7 FLOTATION OF SULPHIDE MINERALS

2015-10-19  In this model the role of the oxygen is to oxidise lattice sulphide ion to sulphur. Flotation of Galena (PbS) Complete flotation of galena is achieved from pH 2 to pH 10 using ethyl xanthate The collector adsorption mechanisms were discussed above. The hydrophobic metal-collector species responsible for flotation is PbX 2.

More

Influence of Pulp pH on Flotation of Fluorite and

Pulp pH value plays a significant role in the froth flotation. Especially in the flotation of fluorite, the performance of flotation will be affected greatly by pulp pH. MO, a new kind of modified fatty acid was used as collector, and H2SO4 and Na2CO3 were used to regulate pulp pH in the experiment. The mechanism of influence of pulp pH on flotation of fluorite and calcite was investigated by ...

More

1 Froth Flotation – Fundamental Principles

2009-8-27  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 Equipment Components Cell Design Agitation Air Flow Cell Bank Configuration

More

17 - Flotation of Gold Ores

2017-2-16  The preferred pH regulator is soda ash, which acts as a dispersant and also as a complexing reagent for some heavy metal cations that have a negative effect on gold flotation. Use of lime often results in the depression of native gold and gold-bearing sulphides. The optimum flotation pH ranges between 8.5 and 10.0.

More
Copyright © 2021.Company name All rights reserved.Dawn Broken