Search - effect of ph for bornite flotation

Search - effect of ph for bornite flotation

Jaw Crusher

As a classic primary crusher with stable performances, Jaw Crusher is widely used to crush metallic and non-metallic ores as well as building aggregates or to make artificial sand.

Input Size: 0-1020mm
Capacity: 45-800TPH

Materials:
Granite, marble, basalt, limestone, quartz, pebble, copper ore, iron ore

Application:
Jaw crusher is widely used in various materials processing of mining &construction industries, such as it is suit for crushing granite, marble, basalt, limestone, quartz, cobble, iron ore, copper ore, and some other mineral &rocks.

Features:
1. Simple structure, easy maintenance;
2. Stable performance, high capacity;
3. Even final particles and high crushing ratio;
4. Adopt advanced manufacturing technique and high-end materials;

Technical Specs

cost of river rock per yard

A STUDY OF FLOTATION AND LEACHING BEHAVIOUR OF

Mar 17, 2011 Figure 14: Collectorless flotation of pyrite in the presence of Cu2+ ions (pH 9.2, flotation time 5 min). [15]. .. 28 Figure 15: Effect of atmosphere (grinding, flotation

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The Importance of pH in Flotation

Aug 10, 2015 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 chemical substance called a BASE. This is very important.

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Adsorption kinetics and thermodynamics of sodium butyl

高达12%返现 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). The adsorption kinetics showed the reaction of NaBX on the bornite conformed to

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Effects of pH and pulp potential on selective separation

flotation experiments, including the addition in the flotation conditioning stage and 4 minutes lasting frothing. Fig. 3: The variation of the pulp potential as a function of time after addition of 16kg/t Na 2 S and aeriation. 3.1. Effects of solid percent and pH at low level of Na 2 S

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AN INVESTIGATION OF COPPER RECOVERY FROM A

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,

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Effect of pH on pulp potential and sulphide mineral

Abstract. Control of pH is one of the most widely applied methods for the modulation of mineral flotation. In this study the effect of pH on potential in solution and sulphur minerals flotation is

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Effect of pH on the Recovery and Grade of Base Metal

Abstract—This study investigated the effect of pH on the recovery and grade of the Platinum Group Metals (PGMs) and base metal sulphides from the UG2 ore of the bushveld complex. This was achieved through running a series of test work in a Denver flotation cell at varying pH 6-11 at constant reagent dosage. The UG-2 reef is characterized by two

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Effect of pulp potential on the flotation of a sulfide

[Show full abstract] sulfide into the oxide cycle of flotation increases pH of the pulp from 7 to 9 in the first case and from 8 to 10 in the second case, which is favorable for an increase in

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Effect of regrinding and pulp aeration on the flotation of

Nov 01, 2014 Impeller speed and pH during conditioning and flotation in the cell were maintained at 1000 rpm and 10.5, respectively for all experiments. Four flotation concentrates were collected after cumulative times of 1, 3, 6 and 10 min at an air flow rate of 2.5 dm 3 /min. The flotation froth was scraped every 10 s. The dry masses of the four

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7 Factors Affecting Froth Flotation Process JXSC Machine

Dec 20, 2018 Froth Flotation machine plays an indispensable role in the mineral beneficiation process, flotation is susceptible to a number of factors during the process, including grinding fineness, slurry concentration, pulp pH, pharmaceutical system, aeration and agitation, flotation time, water quality and other process factors. The factors that affect

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Effects of pH and pulp potential on selective separation

flotation experiments, including the addition in the flotation conditioning stage and 4 minutes lasting frothing. Fig. 3: The variation of the pulp potential as a function of time after addition of 16kg/t Na 2 S and aeriation. 3.1. Effects of solid percent and pH at low level of Na 2 S

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Adsorption kinetics and thermodynamics of sodium butyl

Abstract: 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). The adsorption kinetics showed the

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The effect of water quality on the collectorless flotation

Jun 06, 2012 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. The depressant effect was so strong that the little recovery achieved in these

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(PDF) A Review of the Flotation of Copper Minerals

Another important parameter whic h has a remarkable effect on the flotation of sulphide minerals is pH. It is It is established that xanthates decompose in acidic environment and hence, resulting

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The effect of underground mine water on performance of the

The flotation pH is, however, slightly different. East ore responds better at a higher pH of 10.5 while the west ore is best floated at a pH of 9.5 (Table I). The reason for this difference is not precisely known but this is likely attributable to the slight mineralogical variation in the host rock and the bornite to chalcopyrite ratios—these

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Effect of pulp potential on the flotation of a sulfide

[Show full abstract] sulfide into the oxide cycle of flotation increases pH of the pulp from 7 to 9 in the first case and from 8 to 10 in the second case, which is favorable for an increase in

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The impact of water quality on flotation performance

The impact of water quality on flotation performance pH, Eh, DO and dissolved species in recycle water streams (e.g. thickener overflow, decant (tailings) dam return) contributing to a circuit water are also shown in Table I. TDS and TOC levels may also be raised by reagent addition for pH control (e.g. lime) and recycled organics (e.g

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(PDF) The effect of grinding conditions on the flotation

The effect of the grinding media on flotation is mostly determined using three parameters, namely dissolved oxygen concentration, slurry potential, and galvanic interaction between the medium and

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Evaluation of flotation collectors for copper sulfides and

Aug 01, 1987 Effect of xanthate concentration on the flotation of chalcocite at pH 10.5: [] potassium ethyl xanthate, C) potassium amyl xanthate, A potassium octyl xanthate, V potassium dodecyl xanthate. and (2) there is a minimum in the number of carbon atoms in the xanthate for 50% flotation of some of the minerals at five to eight carbon atoms.

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The effect of pH, solid content, water chemistry and ore

Nov 19, 2013 The role of pH, solid content, water chemistry and ore mineralogy on the galvanic interactions between chalcopyrite and pyrite and low alloy steel balls were investigated in the grinding of Sarcheshmeh porphyry copper sulfide ore. All these factors strongly affect the galvanic current between the minerals and the steel during the grinding process. The galvanic current density decreased as the

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An Investigation of the Adsorption of Xanthate on Bornite

An atomic force microscope (AFM) was applied to study of the adsorption of xanthate on bornite surfaces in situ in aqueous solutions. AFM images showed that xanthate, i.e., potassium ethyl xanthate (KEX) and potassium amyl xanthate (PAX), adsorbed strongly on bornite, and the adsorbate bound strongly with the mineral surface without being removed by flushing with ethanol alcohol.

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Separation of Copper-Nickel by Flotation and Magnetic Methods

Nov 23, 2018 Effect of pH on Flotation Response. To determine if matte separation could be accomplished at lower pH’s than that of saturated lime solutions (12.4), a series of tests was carried out with pH’s ranging from that of the natural flotation pulp (7.7) to 12.3 (table 5).

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Centenary of Flotation Symposium nanoparticles

THE INFLUENCE OF pH AND OLEATE CONCENTRATION ON CHROMITE FLOTATION (after Palmer, M.C.Fuerstenau and Aplan, 1975) This chromite, FeO.Cr 2O 3, assayed 42% Cr(III), 8% Al 2O 3, 4% Fe(III), 7% Fe (II), and 8% Mg(II), with a PZC at about pH 7. Flotation response at high pH match the hydrolysis peaks of FeOH and MgOH, respectively.

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Effect of P80 Grind Size on Flotation Collector

Oct 02, 2017 The pH of the flotation was held constant at 9.5 using lime. Time cuts of concentrate were taken using a batch Wemco flotation cell with an automated paddle removal device at 30 seconds, 1, 2, 4, 8, and 16 minutes. Table 3 lists the overall R and K values measured for the total flotation feed run under each condition.

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Minerals Free Full-Text Derivation of Flotation

Bornite recoveries also increased at any pH condition by a small dosage of NaHS. Moreover, the effect of pH was confirmed, and it was found that the floatability at low pH (pH 8) was higher than the high pH condition. This can be because of complex ion, Fe(HS) 2 0 .

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Decoupling the Effects of Pulp Potential and pH on the

2.2 Effect of pH and Collector Concentration on Flotation To determine the effects of pulp pH on the flotation recovery of the pyrite mineral, representative subsamples were conditioned and floated at pH 4, 6.4, 8, 9.2 and 11. Conditioning of the pulp was carried out at the set pH

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Effect of pH on the flotation performance of incinerator

Oct 29, 2018 (2019). Effect of pH on the flotation performance of incinerator fly ash. Separation Science and Technology: Vol. 54, No. 11, pp. 1829-1841.

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The effect of underground mine water on performance of the

The flotation pH is, however, slightly different. East ore responds better at a higher pH of 10.5 while the west ore is best floated at a pH of 9.5 (Table I). The reason for this difference is not precisely known but this is likely attributable to the slight mineralogical variation in the host rock and the bornite to chalcopyrite ratios—these

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Effect 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 effect of pH on potential in solution and sulphur minerals flotation is discussed with various electrodes. The electrodes were platinum, gold, chalcopyrite, pyrite and galena. In solution, potentials were linearly dependent on pH with a different slope for each electrode.

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Centenary of Flotation Symposium nanoparticles

THE INFLUENCE OF pH AND OLEATE CONCENTRATION ON CHROMITE FLOTATION (after Palmer, M.C.Fuerstenau and Aplan, 1975) This chromite, FeO.Cr 2O 3, assayed 42% Cr(III), 8% Al 2O 3, 4% Fe(III), 7% Fe (II), and 8% Mg(II), with a PZC at about pH 7. Flotation response at high pH match the hydrolysis peaks of FeOH and MgOH, respectively.

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Water Quality in PGM Ore Flotation: The effect of Ionic

This study investigates the interactive effect of plant water ionic strength and pH in the flotation of a sulphidic PGM bearing ore. Results suggest that water quality variations may have effects at both the air-water interface as well as the mineral air interface. Key words Froth stability, Ionic strength, pH, Water quality, Water recovery

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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 chemical reagent configuration on selective flotation in low and high pyritic copper sulphide ores.

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Effect of P80 Grind Size on Flotation Collector

Oct 02, 2017 The pH of the flotation was held constant at 9.5 using lime. Time cuts of concentrate were taken using a batch Wemco flotation cell with an automated paddle removal device at 30 seconds, 1, 2, 4, 8, and 16 minutes. Table 3 lists the overall R and K values measured for the total flotation feed run under each condition.

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Laboratory Flotation Testing An Essential Tool for Ore

flotation separation curves for a batch flotation test (calculated using flotation modelling techniques) performed over different time periods and for tests in which the concentrate has been refloated. The flotation separation curve is a plot of recovery versus the flotation rate of a particle in a particular flotation process.

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Froth Flotation Sulphides [Experiment 2] metallurguy

Sep 28, 2011 Froth Flotation Sulphides [Experiment 2] Objective of this experiment was. To gain experience in sulphide flotation. To investigate some effects of chemical environment on the flotation of sulphide minerals, the effect of pH on pyrite in particular. We were given pyrite ore and had to grind the ore to minus 250 microns and prepare four

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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

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Use of chelating agents as collectors in the flotation of

Feb 01, 1999 Fourteen reagents that are potentially capable of chelating with a metal ion on the surface of the major copper sulfide minerals and pyrite were evaluated for their effectiveness in floating these sulfides. The reagents studied fall into the classes of mercaptobenzole mutations, thiouronium, thionocarbamates, thiourea, imidazole mutations, oximes, hydroxyquinoline and xanthogen

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THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

When the flotation response of enargite at pH 11 is compared with the flotation response of chalcocite at the same pH (refer Figure 1) two possible windows wherein separation of chalcocite and enargite should be possible are obvious. The first is a relatively narrow window between -150 mV and -25 mV SHE in which chalcocite floats ahead of enargite.

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