Effect Of Ph To Iron Bearing Copper In Flotation

Effect Of Ph To Iron Bearing Copper In Flotation

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. The ore may be either alkaline or Acidic. To have a positive control over flotation, it is necessary to be ...

Effect Of Ph To Iron Bearing Copper In Flotation

Copper-nickel ores - danafloat - homeome plants use bulk flotation in an acid ph environment which is achieved using so2 or h2so4eparation of the bulk concentrate copper and nickel minerals is generally accomplished by flotation of the copper from pentlandite and nickel-bearing iron sulphides which report to the flotation tails.

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

Many articles have been written and published on the effects of pH on the flotation recovery of iron oxides using oleate, especially when the iron oxide mineral under investigation was hematite. There is a paucity of information published regarding the combined influence of both Eh and pH on the oleate flotation of oxide type minerals.

Cited by: 18

(PDF) A Review of the Flotation of Copper Minerals

Copper is most commonly present in the earth’s crust as copper-iron-sulphide and copper sulphide minerals, for example, chalcopyrite (CuFeS2), bornite (Cu5FeS4) and chalcocite (Cu2S).

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).

Cited by: 1

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

文件大小: 542KB

Effect of iron content in sphalerite on flotation ...

The effect of iron, substituted in the mineral lattice, on the froth flotation of sphalerite has been investigated at alkaline pH. It has been found that a critical copper sulphate concentration ...

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 ...

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 ...

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

Jan 01, 2018 · Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag. ... aqueous solution at different pH values. The flotation temperature was room temperature. The stirring speed was 1000 r/min, and the concentration of the collector butylxanthate and compound higher alcohols frother 2# pine camphor oil was 0 ...

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

Jan 01, 2018 · In this study, the effects of [Cu.sup.2+] and [Fe.sup.3+] on the sulphidizing and flotation of copper oxide in copper smelting slag are systematically investigated based on the analysis of chemical composition and phase of copper smelting slag.

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

Froth Flotation of Iron Ores

With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing demand on the international market. In over half a century’s practice in the iron ore industry, froth flotation has been established as an efficient method to remove impurities from iron ore.

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. • Iron oxide flotation corresponds to region of ferric oleate stability.

The Adsorption of Cu Species onto Pyrite Surface and Its ...

The adsorption of Cu species onto pyrite surface and its effect on flotation were investigated by using microflotation tests, first-principle calculations, and XPS surface analysis. The results indicated that the flotation of pyrite appears to be activated with CuSO4 only at alkaline pH, while being depressed at acidic and neutral pH. The adsorption of copper ions on pyrite surface ...

Influence of Ferric and Ferrous Iron on Chemical and ...

The effects of ferrous and ferric iron as well as redox potential on copper and iron extraction from the copper flotation concentrate of Sarcheshmeh, Kerman, Iran, were evaluated using shake flask leaching examinations. Experiments were carried out in the presence and absence of a mixed culture of moderately thermophile microorganisms at 50C.

The effect of redox on the relative solubilities of copper ...

Seyfried, W. E., & Ding, K. (1993). The effect of redox on the relative solubilities of copper and iron in Cl-bearing aqueous fluids at elevated temperatures and pressures: An experimental study with application to subseafloor hydrothermal systems.

FLOTATION CHEMISTRY OF HEMATITE/OLEATE SYSTEM

oleate flotation Effect of agitation Agitation time Recovery (%) pH 7.3/75°C 0 10 30 0 3 10 0 3 10 15 78 88 5 20 50 67 75 78 pH 3.7/100°C pH 8.1/100°C Fig. 2. The effect of adjusting pH after conditioning on hematite flotation at 26°C and 2 x 10-5 M KNO, using 3 X 10-5 M oleate, collector. case, the conditioning is carried out at the pH of ...

Effect of HPGR on platinum bearing ores and the flotation ...

Corpus ID: 110069051. Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill @inproceedings{Solomon2011EffectOH, title={Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill}, author={Nomonde Solomon}, year={2011} }

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.

Clay Minerals in Flotation and Comminution Operations ...

Effect of CMC and pH on the rheology of suspensions of isotropic and anisotropic minerals. ... Selective flotation of silicates and Ca-bearing minerals: The role of non-ionic reagent on cationic flotation. ... Iron oxide slime coatings in flotation.

Copper-Cobalt ores

Various cobalt bearing minerals have economic significance including cobaltite (CoAsS). carrollite (Cu(Co.Ni)2S4), and linnaeite (Co3S4). These are often associated with copper minerals and pyrite and pyrrhotite iron sulphides. Two different flotation separation strategies are used.

Investigation of quartz flotation from decarburized ...

Iron-bearing minerals Copper-bearing mineral Chlorite Feldspar Silicate Calcite Roscoelite Sulfate Vanadium sphene Rutile ... The effect of the pH on the flotation of quartz in the presence and absence of Fm 2835-2L is shown in Fig. 2 b. The results indicate that the

A Comparative Study on the Effect of Flotation Reagents on ...

There are some investigations on the effect of flotation reagents in bioleaching technology that generally focused on their impacts over the metallurgical parameters (recovery and grade of products) [1,3,6,7,8,9,10], however, the fundamental effects of these chemicals on bacterial activities are not yet widely studied.It was reported that the recovery and grade in a bioleaching process of ...

A Comparative Study on the Effect of Flotation Reagents on ...

There are some investigations on the effect of flotation reagents in bioleaching technology that generally focused on their impacts over the metallurgical parameters (recovery and grade of products) [1,3,6,7,8,9,10], however, the fundamental effects of these chemicals on bacterial activities are not yet widely studied.It was reported that the recovery and grade in a bioleaching process of ...

Effects of Process Parameters on Selective Flotation of ...

The effects of variation of collector dosage (potassium ethyl xanthate in this case) was studied on flotation of lead and zinc bearing minerals. For flotation of zinc the xanthate dosage was varied from 0.094 kg/t to 0.752 kg/t. The results are shown in Fig. 6. These experiments were carried out using feed with 38.5% -0.074 mm at pH 8.5.

Effect of Desliming on Flotation Response of Kansanshi ...

The Kansanshi mixed copper sulfide-oxide ore contains significant proportions of fine material manifesting in a variety of processing challenges. This paper presents the work which was carried out to evaluate the efficacy of desliming in improving the flotation response of the ore. Two modes of desliming were investigated, namely; sieving and elutriation after which the deslimed material was ...

Water pH and Your Plumbing

With copper plumbing, these stains are blue-green; with galvanized steel or cast iron, you might encounter red or rust-colored stains. The corrosive effects of acidic water are for the most part mitigated when plastic plumbing is used for water distribution - PEX and

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

Jul 09, 2019 · 1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

Effects of Metal Ions on the Flotation of Apatite ...

The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy (XPS) analyses.

An Experimental Investigation on the Copper Recovery from ...

In this study, the possibility of copper recovery from flotation tailing of Mazraeh copper mine was investigated. Magnetic separation method was used for concentration of non-magnetic minerals, especially copper bearing minerals, from iron minerals. As a result, copper grade increased up to 0.18% and its recovery reached 86%. Due to mineral’s oxidized surface, accompanied oxide minerals

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

to that of the common copper sulfide and copper-iron sulfide minerals using flotation conditions typical in most ... conditions where pulp potential and pH effects might be exploited to separate copper-arsenic minerals from other ... potential where it should be possible to make a separation between the arsenic-bearing copper minerals and other ...

Foam Flotation Treatment of Heavy Metals and Fluoride ...

----- EPA-600/2-77-072 April 1977 FOAM FLOTATION TREATMENT OF HEAVY METALS AND FLUORIDE-BEARING INDUSTRIAL WASTEWATERS by David J. Wilson Vanderbilt University Nashville, Tennessee 37235 Grant No. R-803564 Project Officer Mary K. Stinson Industrial Pollution Control Division Industrial Environmental Research Laboratory Cincinnati, Ohio 45268 INDUSTRIAL

1. Introduction

In the first stage, effects of flotation parameters including collector type, collector dosage, and pH and pulp density were examined. The results showed that over 80% copper recovery was achieved under the optimized flotation conditions while nickel recovery was lower than 30% due to its co-ex-istence with gangue minerals of pyrrhotite, pyrite ...

US20110155651A1

US20110155651A1 US12/960,041 US96004110A US2011155651A1 US 20110155651 A1 US20110155651 A1 US 20110155651A1 US 96004110 A US96004110 A US 96004110A US 2011155651 A1 US2011155651 A1 US 2011155651A1 Authority US United States Prior art keywords feed material sulfide valuable metal process containing feed Prior art date 2009-12-04 Legal status

Research of Laws Pyrite-Bearing Slag Flotation of Copper ...

extract copper from free-milling crystallized copper slag aggregates [1, 2]. Flotation copper ground to 0.074 mm class minutes slag is carried out on the circulating water in an alkaline medium created lime [3]. Extracting copper flotation of refractory bad- devitrified lag does not exceed 45-60% on average from the dump and 76% of the converter

ph modifiers for sulphide copper ores flotation

In flotation of gold containing base metal ores, a number of modifiers normally used for selective flotation of copper lead, lead zinc and copper lead zinc have a . a positive effect on gold bearing sulphide flotation, at a pH between 7.5 and 9.0. Inquire Now; 1 Froth FlotationFundamental Principles

Effect of food-grade guar gum on flotation separation of ...

The objective of copper-sulfur flotation is to achieve separation of copper minerals from iron sulfide as well as other gangue minerals. Chalcopyrite (CuFeS 2) is the most important copper bearing mineral; it represents the major source of copper. Among the sulfide minerals, iron sulfide (FeS 2 and Fe 1-x S) is the most common gangue

<fxp_index_title>