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Effect of reverse flotation on magnetic separation

2012-8-9  Reverse flotation studies on magnetite samples have revealed that the use of starch as a depressant of Fe-oxides has a hydrophilic effect on the surface of Fe-bearing silicates and significantly decreases Fe in the silica-rich stream when used in combination with an amine (Lilaflot D817M).

Reverse magnesite flotation ScienceDirect

2001-1-1  Test conditions were: Collector dosage: 300 g/t, 3/6 in the rougher stage, 2/6 in the cleaner stage and 1/6 in the scavenger stage; Fuel oil:amine ratio = 27%:73%; Depressant dosage: 100 g/t, single dosage; Percent solids: 25% Reverse magnesite flotation 111 CONCLUSIONS Cationic reverse flotation is an adequate route for the production, at bench scale, of a magnesite concentrate with SiO2

Inhibiting the amine flotation of magnetite through

2018-4-1  The bubbles-magnetite agglomerates did not float because of the large mass of the magnetite agglomerate, so that they passed out as the tailings. The external uniform magnetic field offers the possibility of carrying out the reverse amine flotation of quartz and silicates without the use of depressant to produce iron concentrates.

Improving reverse flotation of magnetite ore using

2019-7-1  The reverse flotation performance of magnetite ore in the flotation column was enhanced by the pulse magnetic field. The possible mechanisms of this enhancement are speculated as follows. In the absence of a magnetic field, no additional magnetic force exists.

Reverse Combined Microflotation of Fine Magnetite

Magnetite is an essential iron-bearing mineral. The primary method of magnetite ore beneficiation involves successive steps of crushing, grinding, and magnetic separation. Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1–3%, depending on metallurgical processing route

The use of collectors mixture in the reverse cationic

2010-1-1  The paper describes effective reagent combinations for removal of silicates by reverse cationic flotation from magnetic concentrate in magnetite ores processing. This work is based on a hypothesis that a further development in reverse cationic flotation of iron ores implies, a more detailed consideration of the nature of the Fe-bearing gangue minerals.

The importance of mechanical scrubbing in

2014-12-1  Getting magnetite concentrate with extremely high Fe grade using reverse flotation method has become increasingly important due to the enhanced requirement of iron making industry. The coagulation in magnetite-concentrate flotation system may impose negative effect on flotation

Amine Flotation of Feldspar from Magnetite

2019-1-31  The amine flotation of feldspar from magnetite concentrate was investigated using zeta potential measurements, Hallimond tube flotation tests and laboratory-scale flotation tests. The zeta potential of various feldspars (microcline, albite, anorthite, oligoclase and anorthoclase) were determined as a function of pH; the point of zero charge ranged from pH 1.4 to 2.5. Hallimond tube flotation

REMOVING IRON IMPURITIES FROM MAGNESITE ORE BY

2020-12-3  For the flotation of magnesite ore, the amine collectors were used in the reverse flotation, and the fatty acid collectors were used in the positive flotation [10,11]. The collector KDL, consisting of two kinds of amines and two kinds of alcohol, was developed because of the weak removal effect of calcium and iron with the dodecyl amine as a collector by reserve flotation. The reserve flotation

Beneficiation of magnetite concentrates by flotation

Process of separating magnetite from ores containing the same together with locked magnetite-silicious gangue particles, free quartz, magnetic and non-magnetic iron silicates and non-magnetic iron oxides, which comprises grinding the ore to a particle size somewhat coarser than that required for complete liberation, separating the ground mixture by magnetic separation into a non-magnetic portion

reverse flotation magnetite amine ordinacemirova.cz

Inhibiting the amine flotation of magnetite through . Apr 01, 2018 Of these two routes, reverse flotation with cationic collectors (amines) remains the most popular approach used by the iron ore industry Adsorption of amines at pH higher than 8 is more favorable on quartz and silicabearing minerals than on magnetite due to differences in their surface electrical properties ( Peres and Correa

Effect of reverse flotation on magnetic separation

Reverse flotation studies on magnetite samples have revealed that the use of starch as a depressant of Fe-oxides has a hydrophilic effect on the surface of Fe-bearing silicates and significantly decreases Fe in the silica-rich stream when used in combination with an amine (Lilaflot D817M). In this study, the effect of reverse flotation on the optimization of products obtained from magnetic

Inhibiting the amine flotation of magnetite through

2018-4-1  Even low amine adsorption promotes flotation of magnetite, however, so that depressants are used to inhibit the flotation of the iron oxide. Starches are the universal depressants due to their high affinity towards the surface of iron oxides ( Araujo et al., 2005,Filippov et al., 2014,

Reverse Combined Microflotation of Fine Magnetite

Magnetite is an essential iron-bearing mineral. The primary method of magnetite ore beneficiation involves successive steps of crushing, grinding, and magnetic separation. Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1–3%, depending on metallurgical processing route

Reverse flotation of ultrafine magnetic concentrate by

2017-3-19  Reverse anionic flotation of magnetite is conducted at a higher pH value (pH 11–12) than reverse cationic flotation (pH 10–10.5). Since the point of zero charge (PZC) of pure magnetite is around pH 6.5, the surface charge of magnetite in reverse cationic flotation (pH 10–10.5) would be less negatively charged than that at pH 11-12 (Li et

Flotation in a magnetic field and preparation of

1. The method of reverse flotation, based on floculation of magnetite in a magnetic field, with initial magnetite concentrates from magnetic separation being crushed to 30–80% of <0.074 mm size, can yield concentrates with 70–71.8% Fe and high Fe recovery. 2. The flotation of nonmagnetic minerals and their concretions with magnetite in a magnetic field can be effected with either cationic

APPLICATION OF REVERSE FLOTATION METHOD FOR

reduction process in rotary kiln for 3 hours at 900 °C by transforming limonite/goethite to magnetite containing Fe 45.6 % and Ni 1.16 %. The reverse flotation tests were focused on the separation of iron mineral from nickel mineral using amine complex, ARMAC-C, a commercially available amine

REMOVING IRON IMPURITIES FROM MAGNESITE ORE BY

2020-12-3  reverse flotation, the positive flotation is used to process the magnesite ore for most magnesite ores containing quartz/silicate and carbonate gangue minerals [2,3]. Wang Qianqian et al. [1] removed the Fe by different combinations of reserve flotation and high-intensity magnesite, and obtained the useful indexes.

Amine Flotation of Feldspar from Magnetite

2019-1-31  The amine flotation of feldspar from magnetite concentrate was investigated using zeta potential measurements, Hallimond tube flotation tests and laboratory-scale flotation tests. The zeta potential of various feldspars (microcline, albite, anorthite, oligoclase and anorthoclase) were determined as a function of pH; the point of zero charge ranged from pH 1.4 to 2.5. Hallimond tube flotation

Synergistic effect of a mixture of dodecylamine and

2016-5-17  Reverse flotation to remove quartz has been proved to be a very effective technique in the industry. Reverse cationic flotation of quartz uses mainly fatty amines and their derivatives as a collector, e.g. mono-amine, di-amine, and ether amine or a mixture of di-amine and mono-amine

reverse flotation magnetite amine ordinacemirova.cz

Inhibiting the amine flotation of magnetite through . Apr 01, 2018 Of these two routes, reverse flotation with cationic collectors (amines) remains the most popular approach used by the iron ore industry Adsorption of amines at pH higher than 8 is more favorable on quartz and silicabearing minerals than on magnetite due to differences in their surface electrical properties ( Peres and Correa

A Simple Introduction on the Magnetite Reverse

2015-10-22  The cationic collector in the magnetite reverse flotation process is Lilaflot collector. When the dosage of the Lilaflot collector increase to 30-50g/t, the iron grade of the iron concentrate is up to 69.90%, the silica 2.80%, which is suitable for a direct reduction of iron concentrate. The sulfur content of the concentrate is an important

Reverse flotation of ultrafine magnetic concentrate by

2017-3-19  Reverse anionic flotation of magnetite is conducted at a higher pH value (pH 11–12) than reverse cationic flotation (pH 10–10.5). Since the point of zero charge (PZC) of pure magnetite is around pH 6.5, the surface charge of magnetite in reverse cationic flotation (pH 10–10.5) would be less negatively charged than that at pH 11-12 (Li et

Flotation in a magnetic field and preparation of

1. The method of reverse flotation, based on floculation of magnetite in a magnetic field, with initial magnetite concentrates from magnetic separation being crushed to 30–80% of <0.074 mm size, can yield concentrates with 70–71.8% Fe and high Fe recovery. 2. The flotation of nonmagnetic minerals and their concretions with magnetite in a magnetic field can be effected with either cationic

APPLICATION OF REVERSE FLOTATION METHOD FOR

reduction process in rotary kiln for 3 hours at 900 °C by transforming limonite/goethite to magnetite containing Fe 45.6 % and Ni 1.16 %. The reverse flotation tests were focused on the separation of iron mineral from nickel mineral using amine complex, ARMAC-C, a commercially available amine

Reverse Combined Microflotation of Fine Magnetite

Magnetite is an essential iron-bearing mineral. The primary method of magnetite ore beneficiation involves successive steps of crushing, grinding, and magnetic separation. Reverse cationic flotation is used at the final stage to remove silicate and aluminosilicate impurities from the magnetite concentrate and reduce silica content to 1–3%, depending on metallurgical processing route

Amine Flotation of Feldspar from Magnetite

2019-1-31  The amine flotation of feldspar from magnetite concentrate was investigated using zeta potential measurements, Hallimond tube flotation tests and laboratory-scale flotation tests. The zeta potential of various feldspars (microcline, albite, anorthite, oligoclase and anorthoclase) were determined as a function of pH; the point of zero charge ranged from pH 1.4 to 2.5. Hallimond tube flotation

Reverse Flotation of Quartz From Magnetite Ore

2012-6-11  (2013). Reverse Flotation of Quartz From Magnetite Ore with Modified Sodium Oleate. Mineral Processing and Extractive Metallurgy Review: Vol. 34, No. 5, pp. 320-330.

APPLICATION OF REVERSE FLOTATION METHOD

The reverse flotation tests were focused on the separation of iron mineral from nickel mineral using amine complex, ARMAC-C, a commercially available amine thioacetate as collector. Influences of pulp pH, dosages of collector amine complex and frother, and also solid percent of pulp on the reverse flotation of calcine laterite ore were

Synergistic effect of a mixture of dodecylamine and

2016-5-17  Reverse flotation to remove quartz has been proved to be a very effective technique in the industry. Reverse cationic flotation of quartz uses mainly fatty amines and their derivatives as a collector, e.g. mono-amine, di-amine, and ether amine or a mixture of di-amine and mono-amine