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reverse flotation studies of a low grade iron ore sample

  • Reverse flotation studies on an Indian low grade iron ore

    Reverse flotation studies on an Indian low grade iron ore slimes.pdf T.V.Vijayakumar. et. al. / Interna tional Journal of Engineering Scienc e and Technology Vol. 2(4), 2010, 637-648

  • Reverse flotation studies on an Indian low grade iron ore

    Reverse flotation studies on an Indian low grade iron ore slimes T.V.Vijaya Kumar, D. S. Rao**, S.Subba Rao, S.Prabhakar and G.Bhaskar Raju National Metallurgical Laboratory

  • An overview of the beneficiation of iron ores via reverse

    Several studies describing the processing of iron ores via reverse cationic flotation are reviewed. The predominate role of the pulp mineralogy, as well as the type and molecular structures of the collectors and depressants, on flotation is discussed critically. The results concerning the role of the silicate mineralogy on the choice of reagents and flotation processes are also discussed

  • Froth Flotation of Iron Ores CSIRO Research Publications

    Froth Flotation of Iron Ores Mark Ma CSIRO Process Science and Engineering, Box 312, Clayton, Victoria, 3169, Australia Abstract With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing demand on the international market. In over half a century’s

  • Comparative studies of reverse cationic/anionic flotation

    The comparative studies of reverse cationic/anionic flotation routes were conducted using Vale iron ore in batch scale flotation tests. The effect of slimes on the performance of the two flotation routes was also studied. After desliming, the overall Fe recovery in reverse anionic flotation is significantly higher than reverse cationic flotation at the same concentrate grade. For ultrafine

  • Alternative Depressants for the Reverse Cationic Flotation

    Reverse cationic flotation is the most widely used technique for upgrading iron ore concentrates and has been the subject of many studies in recent years.

  • Reverse flotation studies on an Indian low grade iron ore

    The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an

  • Beneficiation of a low-grade iron ore by combination of

    Beneficiation of a low-grade iron ore was investigated by combination of the low-intensity magnetic separation and reverse flotation methods. The main constituents of the representative sample were 36.86% Fe, 8.1% FeO, 14.2% CaO, 13.6% SiO2, and 0.12% S based on the X-ray fluorescence, titration, and Leco analysis methods. The mineralogical studies by the X-ray diffraction, scanning electron

  • Removal of Silica and Alumina as Impurities from Low

    This study investigates the removal of silica and alumina as impurities from hematite based low-grade iron ore containing 34.18 mass% iron, 31.10 mass% of silica and 7.65 mass% alumina. Wet high-intensity magnetic separation (WHIMS) and reverse flotation (RF) were investigated. In WHIMS process, 93.08% of iron was recovered with a grade of 53.22 mass% at an optimum magnetic

  • Improved recovery of a low-grade refractory gold ore using

    In this work, different flotation–preoxidation–cyanidation methods are considered for treating a low-grade refractory gold ore. On the one hand, the results of selective flotation show that 22% and 31.1% of total Sb and As, respectively, remained in the final tailings and only about 28% of the total Au remained for further cyanidation processes.

  • Reagents in iron ores flotation ScienceDirect

    Queiroz (2003) verified that, for certain itabirite ore types, the use of attrition allows the increase of the mass recovery to the slimes and flotation concentrate fractions and the decrease of iron grade in the flotation tailings, iron grade in the slimes and SiO 2, Al 2 O 3 and P grades in the concentrate, resulting in higher figures for Gaudin’s selectivity index.

  • Recovery of Iron Ore Tailings byColumn Flotation

    factory performance in the flotation of the fines of iron ore of the sample, the increase of the collector dosage accounted for a increase in the content of iron and a con- siderable reduction in the SiO2 content in the iron con- centrate, while the recovery of the mass and of Fe fell. It is important to add a depressant agent to the iron mi- nerals in the iron ore reverse flotation. In this

  • Studies on the beneficiation of Indian iron ore slimes

    Another study carried out on beneficiation of Indian iron ore slimes used direct and reverse flotation techniques using oleic acid and dodecylamine as the collector respectively (Das et al., 2005

  • Experimental research on anionic reverse flotation of

    Experimental research on anionic reverse flotation of hematite with a flotation column Li Lina, the utilization of flotation column in the iron ore industry, especially the area of hematite flotation, is at the blank stage [5-7]. The objective of this stone is to explore the feasibility of hematite separation with domestic flotation column, and thus, to provide a novel approach for the

  • Reverse flotation studies on an Indian low grade iron ore

    Since metallurgy of steel demands high grade iron ore concentrates with a low percentage of gangue (SiO. Abstract The present investigation deals with the recovery of iron values from the screw classifier overflow slimes from an iron ore washing plant by means of reverse cationic flotation as an alternate to direct anionic flotation. Selectivity index, an indicator of separation efficiency

  • Hematite Processing by Flotation

    The Visual Sampler is especially well adapted for the operator’s visual inspection of the flotation circuits tailings. The flowsheet is designed for large tonnage operation and parallel circuits which are a necessity on all the low grade, low value iron ore deposits of this type. Flotation offers a very efficient low cost treatment method for beneficiation of these ores. Source: This article

  • Effective Beneficiation of Low Grade Iron Ore Through

    Effective Beneficiation of Low Grade Iron Ore Through Jigging Operation B. Das*, S. Prakash, S.K. Das and P.S.R. Reddy *Address for correspondence: Scientist, Institute of Minerals and Materials Technology (Council of Scientific and Industrial Research) Bhubaneswar-751013, Orissa, INDIA, Email: [email protected] ABSTRACT The effectiveness of jigging operation for the beneficiation of low-grade

  • v116n12a4 Optimization of flotation pH for the reverse

    reverse flotation of an African low-grade BIF haematite ore by A. Fouchee*, N. Naudé*, S. Naik†, and K. Schommarz* +,!)-) This article presents laboratory test work conducted on an African haematite ore to determine the influence of the flotation pulp pH on the final iron grade and recovery. Results show that a combination of an

  • 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

  • Beneficiation Of A Low Grade Limestone Sample Panola

    Beneficiation of a low grade limestone sample . Pilot scale column flotation studies were conducted on a low grade siliceous limestone ore. Silica content was reduced to less than 1 in the concentrate so that it . dry beneficiation of low grade bauxite. 1 Oak Ridge National Laboratory. May 26 1971 6.2 enith Ores of Iron and Their. Online Chat

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