Development of magnetic flotation hybrid separation …
The magnetic field generated by the coils of the C-shaped magnet of the Davis tube apparatus was employed to hinder magnetite flotation when floating chromite which improves the separation selectivity (Yousef et al., 2013). ... Thus, the concentrate had a minimum ash percentage of 7.78%, a maximum combustible recovery of 75.86%, …
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Fusion Separation of Vanadium-Titanium Magnetite and …
2.1. Materials. In this experiment, vanadium-titanium magnetite concentrate from Wuling, Xinjiang was used as raw material, and its chemical composition is depicted in Table 1.It can be observed from Table 1 that the main valuable elements in the raw iron concentrate are Fe, V and Ti, with the mass fractions of TFe, TiO 2 and V …
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Assessment of the effect of iron magnetic concentrate …
High-sulfur magnetite concentrate may be used as a feed for the pelletizing process in the steel production industry. In this situation, cooking pellets can ... The feed samples consisting of the iron magnetic concentrate (flotation feed) and the flotation concentrate obtained from the pilot-plant flotation tests, were separately feed to the ...
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Magnetite Concentration Methods
The magnetite product from Mill No. 2 averages 65 per cent. iron and higher. The plant is arranged to re-treat this concentrate and produce a magnetite carrying in excess of 71 per cent. iron, which is sometimes made to supply the demand for the manufacture of the so-called "magnetite" electric lamps.
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The Desulfurization of Magnetite Ore by Flotation with a …
The contamination of sulfur emanating from pyrrhotite in magnetite concentrates has been a problem in iron ore processing. This study utilized froth flotation to float pyrrhotite away from magnetite using collectors of xanthate and dixanthogen. It was found that xanthate or dixanthogen alone could not achieve selective separation …
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Study of the Technology for Gold Recovery from Gravity-Flotation …
Gold recovery during the combined gravity-flotation concentrate cyanidation using surfactants at a particle size of 89% 10 μm ( − 0.01 mm) is on average 81.6% compared with the use of TCCA—84.0% (average result for 3 tests). Reducing the concentrate size from 89 − 0.01 to 89% − 0.004 mm does not improve gold recovery.
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A novel sulfur-containing ionic liquid collector for the …
The impact of sulfuric acid pretreatment on the surface property of oxidized pyrrhotite (OX-pyrrhotite) and its application in flotation desulphurization of magnetite concentrate were investigated in this study. OX-pyrrhotite using sodium butyl xanthate (BX) collector performed a poor floatability.
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The importance of mechanical scrubbing in magnetite …
Getting magnetite concentrate with extremely high Fe grade using reverse flotation method has become increasingly important due to the enhanced requirement of …
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Reverse Flotation of Quartz From Magnetite Ore with
A total hydrophobic effect is sufficient for an effective flotation of the entire silicate complex and producing of magnetite concentrates with SiO2 content <1.0% and Fe content up to 70.3% from ...
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Selective adsorption mechanism of polyoxyethylene alkyl …
More importantly, SI was increased to 6.50, indicating that PAE has better selectivity for the flotation separation of magnetite and fayalite. In addition, when DDA and PAE are collectors, the recovery of magnetite in the flotation concentrate is 65.62 % and 93.50 %, and the recovery of fayalite was 44.02 % and 25.41 %, respectively.
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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 …
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Biodegradable ether amines for reverse cationic flotation …
Jintian et al. indicated that the reverse flotation-hydrogen reduction could be used to produce the ultra-pure magnetite concentrate (72.12% Fe and 0.19% SiO 2) when d 80 was − 37 μm 12. It was documented that the electrolysis process would enhance the flotation separation of quartz from magnetite (d 50 : 22.5) when sodium oleate was …
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A Study of Processing High-Grade Magnetite Concentrates …
There is a try to purify super high-grade magnetic concentrate to prepare raw materials for ferrite magnet of non-RE PMs. Beneficiation of a high-grade (68%) iron …
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Reverse Combined Microflotation of Fine Magnetite from a …
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 …
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Effect of electroflotation on quartz and magnetite and its …
To fully understand the flotation behaviour of quartz and magnetite, the effect of pH on the flotation recovery of quartz and magnetite with DDA-HCl and NaOL was presented in Fig. 5. ... The difference in contact angle results between flotation concentrate (13.92°) and tailings (47.96°) proves that the mixed collector could …
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Accumulation of magnetite by flotation on …
The abundance of smaller magnetite crystals in the H 2 O + Cl-bearing experiments reveals that a large-scale process by which innumerable magnetite-fluid bubble pairs separate buoyantly as a...
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Pelletization of hematite and synthesized magnetite concentrate from …
Magnetic separation and flotation of BHQ ore could enrich the feed with 39% Fe to a concentrate having 65.3% Fe at 61.9% iron recovery [11]. ... Oxidation of synthesized magnetite concentrate obtained from the process of reduction roasting followed by magnetic separation, i.e., magnetized roasting of a low-grade iron ore [18], …
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(PDF) Improving magnetite concentrate quality in an alternating
Developing innovative equipment to process magnetite ore more-effectively is a way to get rid of these disadvantages of reverse flotation and improve the quality of iron concentrate.
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Biodegradable ether amines for reverse cationic flotation
Jintian et al. indicated that the reverse flotation-hydrogen reduction could be used to produce the ultra-pure magnetite concentrate (72.12% Fe and 0.19% SiO 2) when d 80 was − 37 μm 12.
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Reverse Column Flotation of Ultrafine Magnetite Mixture …
Magnetite ores are among the most important sources of iron, which is in high demand in the global economy. Metallurgical properties of the magnetite concentrate significantly depend on impurities of silicon- and aluminum-bearing minerals. These impurities have to be separated from ore by magnetic separation and flotation …
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Effect of reverse flotation on magnetic separation concentrates
A total hydrophobic effect is sufficient for an effective flotation of the entire silicate complex and producing of magnetite concentrates with SiO2 content <1.0% and Fe content up to 70.3% from ...
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IMPROVEMENT OF FLOTATION TECHNOLOGY FOR RE …
The re-treatment enables pro-duction of iron concentrates with the iron content of 69.5% (at the recovery of 94.62%) and silica content of 1.75%. Key words: magnetite …
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(PDF) Reverse cationic flotation
The reverse cationic flotation can be regarded as a possible solution to reduce the silicate content in the magnetite concentrate obtained by WLIMS and to achieve the required silica grade of less ...
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Improving reverse flotation of magnetite ore using pulse …
The reverse flotation of magnetite ore was improved using a pulse magnetic field. • The pulse magnetic field increased the recovery and grade of concentrate Fe. • The pulse magnetic field provided high selectivity to depress magnetite particles.
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A novel sulfur-containing ionic liquid collector for the …
1. Introduction. As the main type of iron ore, magnetite is the main raw material in the steel industry, which has a strict demand for its sulfur content [1], [2], [3].With the continuous improvement of the quality requirements of iron concentrate, effective desulfurization is of great significance to improve the utilization rate of iron ore resources …
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Preparation of reduced iron powder for powder metallurgy from magnetite
The magnetite concentrate used in this study was collected from an ore dressing plant in China; its chemical composition is listed in Table 1. ... The SCIL was used as a flotation collector for the first time to selectively separate pyrrhotite from magnetite by reverse flotation. Its flotation performance and adsorption mechanism on pyrrhotite ...
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Reverse Column Flotation of Ultrafine Magnetite Mixture …
Reverse column flotation is one of the methods applied for reducing the content of impurities in magnetite concentrate. This method allows recovering impurities …
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Improving reverse flotation of magnetite ore using pulse …
Semantic Scholar extracted view of "Improving reverse flotation of magnetite ore using pulse magnetic field" by Yinfei Liao et al. ... (BHQ) ore for the production of pellet grade concentrate. Dr. Bhumika Das Bishwambhar Mishra S. Prakash S. Das P. Reddy S. Angadi. Materials Science.
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The use of collectors mixture in the reverse cationic flotation …
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 …
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Effect of electroflotation on quartz and magnetite and its …
Thus, the influence of electric flotation on hydrometallurgical processes such as separation of quartz and magnetite [Liu A. et al., 2022], antimony concentrate production [Sozhenkin P.M., 2011 ...
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