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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 on gold Sotation Use of lime often results in the depression of native gold and gold-bearing sul-Rd The optimum Sotation pH ranges between 85 and 100 The type of frother also plays an important role in the Sotation of native gold and gold-bearing sulRd Glycol esters and cyclic alcohols pine oil can improve gold recovery...

Figure 1 Effect of pH on collectorless flotation recoveries on Enonkoski noritic ore after grinding in steel mill Reprinted from Heiskanen et al 1991 with permission from Elsevier Science Figure 2 Effect of pH on collectorless flotation recoveries on Enonkoski noritic ore after grinding in ceramic mill Reprinted...

May 01 2002 0183 32 Effect of Al III as an Activator for Adsorbing Flotation Separation Science and Technology 1984 19 13-15 1061-1072 DOI 101080/01496398408058348 Witold A Charewicz Sergiusz Basak A kinetic study of precipitate flotation of Zinc II Cobalt II and Copper II hydroxid...

ground particles under microscope During the flotation tests the effects of type and dosage of collectors pH and dosage of activator Na 2 S were examined Results of flotation tests were unsuccessful in terms of both recovery and grade of concentrate product The highest copper recovery of concentrate was found as 6135 with...

Sep 24 2018 0183 32 This study aims to investigate the effects of operational variables on concentrate grade recovery separation efficiency and kinetic parameters of the copper flotation process For this purpose the effects of the pulp solids content collector and frother dosage and preparation and concentrate collection time were studied using a Taguchi experimental design...

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 95 as pH levels in the 9 to 10 range yielded 1 to 2 better recoveries Mineralogy data also...

Flotation of nickel-copper sulphide ore optimisation of2020-01-08 the flotation recovery of ni cu and co from a nickel-copper sulphide orethe effect on flotation performance of various parameters such as ph collector dosage solids and depressant dosage at different levels was investigated...

Sep 01 2015 0183 32 Fig 7 Recoveries of copper and molybdenum in forth as function of pH for molybdenum-bearing copper concentrate flotation by collector kerosene 83 mg/L with DMSA 467 mg/L 34 Adsorption isotherms measurement The effects of pH on the adsorption density of DMSA onto chalcopyrite and molybdenite are plotted in Fig 9...

Selectivity index and modified flotation rate constants of copper and iron based on kinetic model of Agar were evaluated to rougher flotation of the Sarcheshmeh porphyry copper ore by a series of...

Dec 01 2020 0183 32 The effect of sodium chloride concentration and microorganism type on extraction of copper a nickel b cobalt c iron d pH e ORP f and optical density g during bioleaching experiments of the sulphidic tailing at initial pH of 15 the pulp density of...

The samples for flotation were taken from on-site samples of flotation which were ground to 95 passing 0045 mm and contained 3490 specularite and hematite 870 magnetite 020 limonite 3940 quartz 1140 chlorite and hornblende and 490 calcite and dolomite...

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 pH on sulphide flotation examined paying particular attention to the pulp potentials involved Sodium sulphide is used as the depressant of the copper and iron bearing minerals...

extract copper from free-milling crystallized copper slag aggregates 1 2 Flotation copper ground to 0074 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...

The effect of sulphite on the xanthate-induced flotation of copper-activated pyrite 189 Under the experimental conditions studied at pH 7 and 9 the effect of sodium bisulphite on the xanthate-induced flotation of copper-activated pyrite with nitrogen purging was found to be similar In the presence of sulphite the recovery of pyrite was...

2 Separation of different copper sulphide minerals from pyrite after regrinding 3 Importance of pulp chemistry during regrinding rougher concentrates 4 Effect of particle breakage mechanisms on subsequent flotation In this study it was found that copper activation of pyrite and its flotation in the cleaner stage were affected by regrinding...

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 CuSO...

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 95 as pH levels in the 9 to 10 range yielded 1 to 2 better recoveri Mineralogy data also supports this and shows between 3 and 10 of the...

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...

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 recoveryThey are Collectors for difficuty to float ores such as copper lead zinc nickel sulfid Wide Flotation pH value range It can be used for separation of Cu-Zn and...

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 analys...

The flotation tailing froth product was collected for 3 min In the study the effect of different collectors flotation pH values and mixed collector rates were investigated Figure 1 Flow sheet of flotation tests The concentrates and tailings from flotation after the filtering and...

What Ph Is Commonly Used In Copper Ore Flotation use of lime copper flotation - ewagsorg what ph is commonly used in copper ore flotation Copper ore may be separated from crude ore using a flotation pro cess that the copper yield pH control is necessary in the flotation tanks Plants typically add lime to the The InDip 508 Immersion Housing is recommended for use with...

A method and an apparatus for the separation of the mineral components of a pyrite containing copper- molybdenum ore by flotation The method comprises grinding the ore in the presence of soda ash in an open circuit to produce an aqueous ore slurry subjecting the slurry to a collective flash flotation step 10 in the presence of soda ash and sodium sulphide to recover a first part of metal...

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...

Jul 08 2011 0183 32 1 Introduction Wet milling in ball mills followed by flotation is the general practice employed in the beneficiation of copper sulphide ores in which the major minerals of commercial significance typically are chalcopyrite CuFeS 2 bornite Cu 5 FeS 4 covellite CuS and chalcocite Cu 2 S The flotation response of ground minerals can be influenced by the grinding conditions used...

The Kansanshi mixed copper sulfide-oxide ore contains significant proportions of fine material manifesting in a variety of processing challeng 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...

In the presence of xanthate using vation and flotation of pyrrhotite with xanthates and high levels of aeration flotation recoveries of pyrrho- copper sulfate at pH 51 It was found that copper sul- tite were improved as compared to low levels of fate significantly improves pyrrhotite recovery...

In the study batch cleaner tests were conducted to confirm the target regrind size and select the cleaner pH conditions The objective of the high pH collector-starved environment in the cleaners is To liberate and reject attached silicates Depress the previously-floated pyrite If the floatability imparted on the pyrite in rougher flotation is not adequately depressed during regrinding...