effect of ph to iron bearing copper in flotation

Patent US3438494 Flotation method for the recovery of The graph shows a marked effect of pH on The method of claim 1 in which said mineral is an iron bearing mineral and said pH varies Copper flotation with anti



INFLUENCE OF FROTHER TYPE AND DOSE ON

b medium 71 40 µm and c coarse 100 71 µm particles of copper bearing shale Figure 3 shows the influence of frother type and its concentration on the maximum recovery of coarse medium and fine particles of carbonaceous copper bearing shale floated in the flotation column It can be seen from Figs 3a d that the maximum



Investigation of the Possibility of Copper Recovery from

Effect of leach solution acidity on iron recovery as a function of Fig 6 such as the pH value of the leach solution stirring speed pulp density particle size concentration of ferric ions Keywords Flotation tailings pond Leaching Sulphuric acid Copper higher dissolution of iron bearing sulphide minerals chalcopy



Influence of Pulp pH on Flotation of

of Natural Resources Influence of Pulp pH on Flotation of Fluorite and Calcite Effect of Ball Material Ratio on the Grinding Efficiency of Copper Bearing



Recovery of copper from the copper slang and

Keywords copper slag copper slag flotation tailings leaching sulphuric acid bearing slags as the chemical and phase composition of a slag depend on factors such al 2011 and the effect of ultrasound on acid leaching Bese 2007 pH 2 5 70 oC that iron extraction drops from about 95 to 5 with copper



Lead Zinc ores Danafloat Home

The established lead zinc ore flotation processing then floated in a second flotation step after activation with copper to raise pH for iron



Flotation method for the recovery of minerals

a water suspension of the nely divided ore at a pH at which the metal silicate bearing mineral and also with the recovery of iron oxide otation recovery of minerals containing copper and iron The graph shows a marked effect of pH



A Comparative Study on the Effect of Flotation Reagents on

Recently extraction of metals from different resources using a simple efficient and low cost technique known as bioleaching has been widely considered and has turned out to be an important global technology Leptospirillum ferrooxidans and Acidithiobacillus Thiobacillus ferrooxidans are ubiquitous bacteria in the biomining industry To date the effects of commercial flotation reagents



Flotation 19

12 00 Sulphidisation and flotation of oxidised copper sulphides T Moimane Y Huai and Y Peng The University of Queensland Australia 12 15 Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic bearing copper minerals using flotation



Influence of grinding media and water quality on flotation

Influence of grinding media and water quality on flotation performance of gold bearing water quality on flotation upon pH and the cyanide to copper



Molybdenite Flotation University of South

2 3 Water chemistry effect on flotation of molybdenite major issues in the flotation process of molybdenite bearing copper sulfide ores 5 11 Concentration of iron species as a function of pH Prestidge et al 1995



SHENYANG FLORREA CHEMICALS CO LTD thionocarbamate

The Collectors are used in flotation of molybdenum bearing copper ores where molybdenum recovery has been increased by more than 10 without adverse effects on copper recovery They are Collectors for difficuty to float ores such as copper lead zinc nickel sulfides



Water pH and Your Plumbing

Cadmium and manganese might be leached from the environment other metals like lead copper iron and zinc might also be environmental but are more often given up by home plumbing pipes fittings solder faucets in the presence of acidic water Excessive levels of any of these metals in water can result in health problems



Froth flotation Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic pH modifiers include lime CaO Copper Lead Zinc Iron



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



Research of Laws Pyrite Bearing Slag Flotation of Copper

Research of Laws Pyrite Bearing Slag Flotation of Copper Melting in Water used Change Settings I V The article presents the results of studies of the effect of conditioning method of circulating water in the specified pH values The study of flotation of copper slag was carried out on the technical water circulating water underspoil



Patent WO2012053915A1 A process of gold and copper

26 Apr 2012 subjecting the ground ores to copper flotation using xanthate as collector process to extract and recover the gold and copper bearing liquor leaching final gold concentrate with H2S04 at a pH of about 1 to about 2 iron oxide copper gold deposits quot IOCG and volcanogenic massive sulfide deposits



Sodium Metabisulfite MBS for pH Control and Pyrite

For pyrite flotation you see maximum iron pyrite depression using Sodium Metabisulfite MBS takes effect at around pH Selective Flotation for Copper Lead



School of Chemical Technology Degree Programme of

10 Feb 2015 flotation where pH collector and depressant dosages were varied to provoke changes in the responses of copper recovery and grade iron and nickel recoveries This thesis was the result of the unconditional support provided by disseminated way a metal bearing ore therefore usually contains



Flotation of gold and gold bearing ores PDF Free Download

Flotation of gold and gold bearing ores 335 Flotation reagents at the Stawell Gold Mine in Victoria Australia where carbonaceous pyrite–pyrrhotite gold ores with minor quantities of arsenopyrite are floated at a slightly elevated pH value include copper sulfate PAX and Terric 407 frother



A review of the effects of the grinding environment on the

 · The effects of the grinding media sulphide mineral interactions on flotation are summarised below with specific reference to the flotation of copper sulphides 2 1 Effect of pulp potential When metallic iron present in steel grinding media is



Characterization and recovery of copper values from

SIX as the collector The effects of flotation parameters such as pH and collector con indicated the presence of fine copper matte fayalite and iron particles in a and in which the copper bearing phases are distributed at very fine size



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



CU AU AND ZN PB SKARN DEPOSITS USGS Publications

Gold bearing skarns may contain significant amounts of numerous other commodities including copper lead zinc and iron and or they may have been mined in the past A new pyrite flotation process is available as a substitute of generalized effects of pH on aquatic ecosystems based on Potter and others 1982



THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE COPPER AND and copper iron sulfide minerals using flotation and pH effects might be



The effect of redox on the relative solubilities of copper

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 In Geochimica et Cosmochimica Acta 1993 Vol 57 No 9 pp 1905 1917



Low pH Trial in the Ernest Henry Mining Copper

17 Jul 2013 flotation circuit pH EFFECT ON SULPHIDE MINERAL FLOTATION Copper and iron bearing sulphide minerals are the two predominant



Differential flotation of copper zinc at

to develop a method of treatment to recover copper and zinc in saleable grades of con centrates van die koper by 39 n amper neutrale pH met die gebruik van 39 n sink sianide sfaleriet is iron bearing effect on pyrite flotation independently



Investigation of Flotation Parameters for Copper Recovery

Investigation of Flotation Parameters for Copper Recovery from Enargite and Chalcopyrite Mixed Ore Effect of particle size slurry pH



Effect of Collector and pH on Pyrite Fe Selectivity

and recover copper as well as iron of pH from 6 to 7 may have the similar effect on recovery as and pH on Pyrite Fe Selectivity Flotation



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



FLOTATION CHEMISTRY OF HEMATITE OLEATE SYSTEM

flotation process involves solid liquid solid gas and liquid gas interfaces it is expected that the above stated changes in the oleate properties would in fluence oleate flotation response Our study of flotation chemistry of hematite oleate system is formulated on the basis of the above considerations and is directed towards the under



Copper extraction Wikipedia

Copper extraction refers to the methods used to obtaining copper from its ores The conversion For special native copper bearing ore bodies or sections of ore bodies rich in supergene and to remove other sulfide minerals that can deleteriously impact the concentrate quality Iron exists in both primary zone minerals



Sulphide Mineral Flotation DiVA portal

explained by Eh–pH diagrams of these minerals and the existence of free metal hydrogen peroxide by pyrite and its influence on flotation – submitted to loatability of galena and pyrite due to iron materials mainly provoking the iron Acid Mine Drainage AMD is produced when sulphide bearing material is exposed to



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



Behaviour of ilmenite as a gangue mineral in the benzohydroxamic

One challenge identified in the flotation of niobium bearing minerals with hydroxamates is the recovery metals although stability is stronger with iron copper and highly pH 12 3 there was no flotation activity for both minerals and the



Effects of Metal Ions on the Flotation of Apatite

The effects of Ca 2 Mg 2 Al 3 and Fe 3 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



jaatinen pdf Tampereen teknillinen yliopisto

4 May 2011 of two nickel and cobalt containing flotation concentrates from Mondo pH on the dissolution of nickel cobalt iron and arsenic from nickel concentrates that pH has a marked effect on the dissolution and precipitation of iron arsenic and Recovery of valuable metals from arsenic bearing materials in



A Review on Novel Techniques for Chalcopyrite Ore

1 Jan 2012 the most common copper bearing mineral on earth Nesse flotation concentrates rather than ores and is economically quantity and as a result of oxidation of the sulfide mineral split copper and nickel sulfides and separate them from iron 55 o C pH 0 5 2 5 is maintained within the reactors



Cytec Solutions For Solvent Extraction Mineral Processing and

Copper Solvent Extraction Behavior of Iron and Manganese in Electrowinning Solutions Low pH Pyrite Flotation Collector Development Program



Mine to mill optimisation effect of feed size on mill

iron copper flowsheet developed in the scoping study together the process ore that affect tailings storage gold bearing complex sulfide ore feed All copper sulfides are processed through flotation using xanthates at 6 12 pH When pH



The Recovery of Copper from Smelting Slag by

8 Feb 2017 in which bornite was the main copper bearing mineral after a detailed mineralogy Copper concentrate grading at 14 47 with 79 66 Cu recovery was of 50 g t for butyl xanthate and a pH value of 10 adjusted using Na2CO3 Keywords Smelting slag Copper recovery Mineralogy analysis Flotation



Modelling of pyrite depression process by lime in copper

Effect of pH value on the required concentration mol l of ethyl xanthate X ensuring maximum pyrite 1 Pyrrhotite 2 and chalcopyrite 3 flotation Floatability of copper and iron sulphides in the absence of lime can be explained by taking into account the composition of natural sulphides oxidation products



Danafloat 245 mineral collector

Other applications are flotation of copper activated iron sulphides flotation of nickel bearing minerals antimony minerals chalcocite and for improvement in the



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



Sensitivity of pentlandite flotation in complex sulfide

Extreme sensitivity of pentlandite flotation in the Timmins ore towards the use of lime must also be related to some inherent geochemical factors and mineralogical associations which include a lower level of Cu Ni and presence of Mg bearing gangue minerals



Effect of Collector and pH on Pyrite Fe Selectivity

Even at optimum pH 6 over dosage of collector will negate flotation selectivity and recover copper as well as iron lead zinc Also note how letting go of pH from 6 to 7 may have the similar effect on recovery as adding more collector and will less selectively recover more copper as well as iron lead zinc



Selective depression effect in flotation

Selective depression effect in flotation separation of copper−molybdenum sulfides Hebei Iron and Steel Group Mining Co Ltd Tangshan 063000 China Received 21 function of pH for molybdenum bearing copper concentrate flotation



Effect of pyrite content of feed and configuration of

To obtain the liberation degree of copper bearing minerals in the flotation cells for copper iron Effect of collectors conditioning pH and gases in



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



Investigation of quartz flotation from decarburized

Iron bearing minerals Copper bearing mineral Chlorite Feldspar Silicate Calcite Roscoelite The effect of the pH on the flotation of quartz in the



Flotation Reagents Mineral Processing Metallurgy

Flotation Frothers What is the Function of Frothers The function of frothers in flotation is that of building the froth which serves as the buoyant medium in the separation of the floatable from the non floatable minerals Frothers accomplish this by lowering the surface tension of the liquid which in turn permits air rising through the pulp to accumulate at the surface in bubble form



Decreasing Easily Slimed Gangue Minerals Effect on Copper

This article research a low grade ore in Jinping it contain 0 634 nickel 0 329 copper 0 047 cobalt 30 18 SiO2 and 19 72 MgO The rude ore contain amount of gangue minerals such as chlorite mica quartz feldspar which are easily slimed and have undesirable effect on flotation In order to decrease such negative effect this article investigated a method by desliming flotation



Investigation of Flotation Parameters for

22 Feb 2012 The copper ore bearing enargite mineral contained 5 87 mass As and 16 50 mass Cu while the Effect of particle size slurry pH flotation time collector In the mineral industry many copper and iron sulfide ores such as



froth flotation reagents irsil org

froth flotation reagents The effect of copper ore by flotation 207 gation the effect of pH bearing complex sulphide ore by flotation 207



THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE COPPER AND ARSENIC – AN OVERVIEW BASED ON SELECTED CASE STUDIES The dependence of enargite flotation on pulp potential is largely independent of pH over the range tested Between 100 mV and 0 mV SHE standard hydrogen electrode scale the mineral goes from being non floatable



Synthesis of copper oxy chloride and iron oxide

a copper sulphide minerals flotation concentrate Carlos de synthesizing copper oxy chloride 3Cu OH 2 CuCl2 and iron oxide bearing pigments such as The time temperature and the pH in particular are the main parameters that drive the rate of Therefore there are adverse effects on soil biota and plants 5



The influence of the impurities on the flotation behaviors

To investigate the effect of three typical impurities iron copper and cadmium on the flotation behavior of sphalerite we have synthesized impurity doped ZnS using a coprecipitation method



Flotation Reagents 911 Metallurgist

8 Jun 2016 This data on chemicals and mixtures of chemicals in froth flotation with lime is the cheapest and best for iron sulphides while zinc sulphate Modifying the pH of a pulp has a pronounced effect on the action of aerofloat promoter frother for silver bearing lead ores also copper and zinc sulphide



Effect of pulp potential on the flotation of a sulfide

Effect of pulp potential on the flotation of a sulfide copper ore Flotation of carbonaceous copper bearing shale and copper sulfide minerals such as chalcocite and bornite in the presence of



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

 · Read Effects of Eh and pH on the oleate flotation of iron oxides Minerals Engineering on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips



THE USE OF PULP POTENTIAL CONTROL TO SEPARATE

THE USE OF PULP POTENTIAL CONTROL TO SEPARATE COPPER AND ARSENIC – AN OVERVIEW BASED ON SELECTED CASE STUDIES The dependence of enargite flotation on pulp potential is largely independent of pH over the range tested



pH Ranges for Sequential Cu Pb Zn Flotation Separation

By modifying Flotation pH to create kinetic speed differences between the metals and achieve sequential flotation and take full advantage of the hydrophobic nature of each mineral it is best to first lower the pH and see about recovering copper



Effect of pH Concentration and Temperature on Copper and

A speciation study was conducted to investigate the effect of pH and temperature on the concentration of copper species The thermodynamic speciation of copper shown as a function of pH in Fig 1 at a temperature of 25 oC was calculated based on Equations 1 to 4 and values of equilibrium constants obtained from free energy of formation



EFFECT OF CLAY MINERALS ON FROTH STABILITY IN

EFFECT OF CLAY MINERALS ON FROTH STABILITY IN MINERAL FLOTATION A REVIEW Figure 2 Classification of clay minerals from Brindley 1952 Flotation tests



Effect Of Ph To Iron Bearing Copper In Flotation

Flotation of iron bearing tungsten minerals and mica from gravity tailings of rare metal ores processingeffect of ph on the depression of iron oxides in the presence of complex gangue silicate mineralsaid42an atomic force microscopy in the study of the flotation of copper sulfide mineralsaid25henyang zhanghina



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



Recent International Journal of Mineral Processing Articles

Non polar oil assisted DDA flotation of quartz II Effect of different polarity oil components Effects of contact times dosage of adsorbent pH ionic strength In this paper a novel process was studied for the recovery of iron and titanium that contains sulphide mineral bearing tailings is a key parameter that influences its



Depression of pyrite in the flotation of copper ores Trove

The relatively strong flotation of iron sulphides is caused by their copper activation from copper species dissolved from copper minerals present in the ore In this study several methods were used to reduce copper activation of pyrite during grinding or to minimise its effect on the flotation of pyrite at pH 9 0



WO2009109812A1 Process for recovering copper sulphide

Process for recovering copper sulphide and optionally molybdenum sulphide from a copper bearing ore by froth flotation consisting in crushing said ore mixing the obtained ground powder with at least a collector and water aerating the slurry removing and concentrating the mineral froth formed at the surface of the bath wherein the collector is a thioglycolic acid derivate having the



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



effect of ph to iron bearing copper in flotation

Recovery of Copper from the Slag of Khatoonabad Flash Recovery of Copper from the Slag of Khatoonabad Flash Smelting Furnace by the effect of pH on copper effect on copper recovery flotation



Effect of grinding time on flotation recovery of

Therefore to recover their copper by flotation method grinding should be copper bearing minerals was achieved 85 90 The floatation sulfides and oxides of iron and copper Effect of pH on recovery of Cu from copper slags 3 1 3



Investigation of quartz flotation from decarburized

potential as activators in the flotation of albite spodumene and quartz minerals The objective of the present investigation is to improve understanding of the effect of metal ions on quartz flotation and the underlying adsorption mechanism of ether diamine as collector in flotation of quartz from vanadium bearing mica present in coal



Effect of Copper and Iron Ions on the Sulphidizing

 · Free Online Library Effect of Copper and Iron Ions on the Sulphidizing Flotation of Copper Oxide in Copper Smelting Slag Research Article by Advances in Materials Science and Engineering Engineering and manufacturing Adsorption Backup software Sulfur compounds



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



19 Flotation of Oxide Copper and Copper Cobalt Ores

Flotation of Oxide Copper and Copper Cobalt Ores minerals and are the most complex copper bearing ores from a beneficiation point of view dependent on flotation pH and collector concentration Figure 19 2 shows the relationship between malachite recovery and flotation pH It has been proposed that chelation mechan



Flotation to Recover Copper Minerals from a Low Grade

Large amount of sourrounding rocks in Jianshui China has been discarded for many years and the rock is characterized by Cu Fe polymetallic constituents and of low grade According to the results of chemical and phase analysis as well as the mineralogy a joint pocess of flotation and magnetic separation was proposed and used to process the ore



copper arsenic flotation selectivity lenguaglobal in

effect of ph to iron bearing copper in flotation Lastly This thesis will solely focus on the flotation of copper bearing preparation of low arsenic bearing copper and Selectivity in



A Review of the Flotation of Copper Minerals

2 3 Modifiers Modifiers are chemicals used extensively in flotation to modify the action of the collector making collector They are not selective with respect to iron sulphide ore or when the copper flotation is carried out at lower pH 7 Another the most complex copper bearing ores from a beneficiation point of view



Effect of clay minerals on pulp rheology and the flotation

In this study the effect of bentonite and kaolinite minerals with low and high crystallinity on pulp rheology and the flotation of copper and gold minerals was investigated



Modelling of pyrite depression process by lime in copper

26 Jun 2012 Flotation of copper or zinc sulphides by depression of the iron sulphides in selective Effect of pH value on the required concentration mol l of ethyl bearing compounds on the iron and copper sulphide minerals surface



1 Froth Flotation – Fundamental Principles

1 Froth Flotation – Fundamental will produce compensating effects in other areas Grade recovery performance of a hypothetical copper ore flotation process



Leaching Characteristics of Upgraded Copper Flotation

Abstract The copper flotation tailings from Konkola Copper mine in Nchanga feed material were determined at different pH levels and temperature It was observed that cupriferous micas calcites siliceous feldspar and iron bearing oxide gangue result treating of tailing became a costly exercise because of the high

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