apatite depression in flotation pdf



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DEFINITION THE TECHNOLOGY METHOD OF APATITE

flotation concentration The apatite concentrates are obtained using the selective flotation from the silicate and oxide minerals while defining the process of selective flotation of apatite from carbonate deposits is the major problem worldwide The experimental part of this paper presents the results of laboratory flotation tests of phosphate ore...

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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 analys...

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Selective flotation of apatite from calcite using 2

Jun 01 2019 0183 32 PBTCA exhibited selective depression for calcite flotation in the apatite-calcite system Preferential flotation of apatite was achieved when the pulp pH value was adjusted to 85 Zeta potential measurements indicated that the pre-treatment using PBTCA interfered with the adsorption of sodium oleate on the calcite surface while did not prevent...

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Understanding the depression mechanism of sodium citrate

Mar 05 2020 0183 32 To study the depression effects of NaCit in detail the floatability of apatite at pH = 80 and pH = 105 were also investigated by flotation experiments as shown in Fig 3 c At pH = 80 NaCit has little depression effect on apatite flotation when the dosage was less than 400 mg/l...

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Flotation of Dolomite from Apatite

separate apatite from dolomite Micro-flotation tests were performed to reveal the selective depression of apatite by NaPP In addition the underlying mechanism was investigated through zeta potential and contact angle measurements and XPS analys 2 Experiments 21 Materials...

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Investigations on soluble starch as the depressant of

anionic flotation processing the apatite is floated with fatty acids collectors after depressing the iron oxide by suitable reagents such as starch dextrin sodium silicate and CMC In addition a series of studies have been undertaken to improve apatite separation efficiency and also to develop novel...

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PDF FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING

Download Full PDF Package This paper A short summary of this paper 37 Full PDFs related to this paper The apatite flotation test T3 is illustrated in collector dosage was set at 120 g/t literature explaining the collector adsorption onto this mineral while mechanism of apatite depression and apatite remains hydrophilic...

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Depressing effect of sodium hexametaphosphate on apatite

The separation of rutile from apatite by flotation and the mechanism of depressing the apatite of sodium hexametaphosphate were studied The results showed that rutile and apatite could be...

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Mechanisms Of Phosphate Depression Flotation

Marmatite Depression In Galena Flotation Gavin Marmatite depression in galena flotationBut this does not correspond to mechanismsThe formation of a zinc hydroxide pre- phosphate and butyl xanthate Read More...

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EFFECfS OF DISSOLVED MINERAL SPECIES ON THE ELECfRO

The effects of dissolved mineral species of calcite and apatite on the flotation of these minerals has been shown recently in our laboratory to be drastic under certain solution conditions 6 Flotation of calcite and apatite in mineral supernatants was drastically depressed due to...

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mechanisms of phosphate depression flotation

Flotation Developments Best Practice - International Mining Nov 4 2013 His lecture Size matters- coarse and quick flotation can reduce costs found where Wemco mechanisms were replaced by these mechanisms copper gold gold carbonaceous gold nickel phosphate ores and coal in ore mineralogy and poor pyrite depression even at very high dosages of NaSH...

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Effect of dissolution kinetics on flotation response of

Flotation is applied in most of the phosphate beneficiation plants with the objective of separating apatite from carbonates Abouzeid 2008 Cao et al 2015 Sis and Chander 2003a The success of flotation depends on the range of chemical reagents added to the system in order to control the surface characteristics of minerals determining...

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US3259242A

US3259242A US241057A US24105762A US3259242A US 3259242 A US3259242 A US 3259242A US 241057 A US241057 A US 241057A US 24105762 A US24105762 A US 24105762A US 3259242 A US3259242 A US 3259242A Authority US United States Prior art keywords flotation apatite calcite macrocrystalline acid Prior art date 1962-11-29 Legal status The legal status is an assumption and is...

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Starch modification of the flocculation and flotation of

Nevertheless the interaction between starch and apatite surfaces is relevant to both selective flocculation and flotation of phosphate or The main objective of this thesis is to investigate in detail such interaction in order to provide a more clear understanding on the behaviour of apatite...

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Recovery of Apatite from Slimes of A Brazilian Phosphate Ore

diameter column flotation The rougher apatite flotation tests were carried out in a laboratory column with an internal diameter of 3 inches a height of 20 m and an effective volume of 68 L consisting of three adjustable modul The pulp with 35 -36 solids by weight was conditioned in four flotation...

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NICKEL AND COBALT ORES FLOTATION

DETA and thus causing its depression Effect of pulp potential Pentlandite can be Soated selectively from pyrrhotite by maintaining the pulp III/NICKEL AND COBALT ORES FLOTATION 3493 Figure 5 Flotation selectivity in the separation of pentlandite from pyrrhotite using sulfur dioxide and diethylenetriamine with sodium isobutyl xanthate pH 92...

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Alizarin Red S as a Flotation Modifying Agent in Calcite

Flotation of calcite and apatite Flotation results obtained for calcite and apatite with oleate are given in Figs 5 and 6 Calcite shows a sharp drop in flotation between pH 8 and 10 while elsewhere in the tested pH range flotation is more than 95 The flo-tation of apatite on the other hand is nearly 100 between pH 6 and 12 with...

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PDF Influence of particle size and reagent dosage on the

This takes place because a stronger depression restrains the col- The residual analysis of these regressions show that the residuals lection of apatite and also the amount of collector is not enough are independently and identically distributed according to a normal to provide the required hydrophobic coverage on the particle sur- distribution...

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Effect and mechanism of phosphoric acid in the apatite

While depression of calcite flotation by the dissolved species is found to be governed by depletion of oleate by bulk precipitation the depression of apatite flotation is caused by the carbonate...

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Influence of agitation intensity on flotation rate of

1 Introduction The agitation in a conventional flotation machine is promoted by the rotor-stator system with the turbulence suspending the particles and drawing the pulp through the stator to disperse the bubbles promoting the contact of bubbles and particles Schubert 1999 The typical industrial range of energy input using mechanically agitated flotation cells is 10-20kW/m 3 Deglon...

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Adsorption of oleate on apatite studied by diffuse

PDF 891 KB Get e-Alerts Understanding the depression mechanism of sodium citrate on apatite flotation Herman Mansur Alexandra Mansur Gilberto da Silva Antonio Eduardo Clark Per Apatite flotation using pataua palm tree oil as collector Journal of...

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Improving flotation separation of apatite from dolomite

The flotation results showed that mixing sodium oleate and oleic acid amide could float apatite well in a pH 75-95 range even at the acid number of 120 mgKOH/g and it exhibits better collecting...

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The flotation of apatite and dolomite in orthophosphate

Flotation of dolomite was observed but flotation of apatite did not occur 4-C Oleic Acid Adsorption Tests Infrared spectra of apatite and dolomite samples on which oleic acid had been adsorbed in the pH interval from 55 to 95 are shown in Figures 12 13 1 4 and 15 38 Series 1 - Oleic Acid Adsorption on Apatite Powder Refer to Figure 12 H...

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An Approach to Beneficiation of Apatite Ore of Purulia

Direct flotation Direct flotation of apatite involves the interaction of grind variation as well as reagents optimisation Different reagents like emulsified oleic acid is used for flotation of apatite but it has affinity for iron minerals also Starch is used for suppression of iron minerals and caustic soda as...

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Pyrite depression by dextrin in flotation with xanthates

of carbonaceous pyrite in copper flotation depression of lead in lead-copper bulk separation Bulatovic 2007 and depression of hematite and apatite in their reverse flotation against siliceous minerals Lin and Burdick 1988 Dextrin dosages of up to 1 400 g/Mg is reported...

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PDF Effects of Metal Ions on the Flotation of Apatite

The depression of apatite can be achieved by adjusting the pH of pulp because the flotation behavior barely occurred at pH below 45 in an anionic flotation of apatite without the addition of any...

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US2557455A

US2557455A US14638A US1463848A US2557455A US 2557455 A US2557455 A US 2557455A US 14638 A US14638 A US 14638A US 1463848 A US1463848 A US 1463848A US 2557455 A US2557455 A US 2557455A Authority US United States Prior art keywords ilmenite ore flotation concentrate pulp Prior art date 1948-03-12 Legal status The legal status is an assumption and is not a legal conclusion...

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PDF Reagents used in the flotation of phosphate ores A

Download full-text PDF Read they have been proven to be highly efficient for apatite flotation in plant practice in and reverse flotation of gangue minerals with depression of iron oxid...

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Improving flotation separation of apatite from dolomite

Sep 01 2020 0183 32 Froth flotation is widely used as an effective method for separating apatite from dolomite However it is of difficulty to realize the efficient separation of apatite and dolomite using the traditional fatty acid collectors without any depressants due to their similar physicochemical properti...

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Effect of Sodium Pyrophosphate on the Reverse Flotation of

Flotation results revealed that NaPP could selectively depress the flotation of apatite thus realizing the separation of apatite from dolomite Further the selective depression mechanism of NaPP was studied through zeta potential measurements contact angle measurements and X-ray photoelectron spectroscopy XPS analysis...

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