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Iron ore flotation concentrate

flotation circuit is typically 20% - 30 % less than an equivalent conventional flotation circuit but can be as much as 50% lower depending on the circuit and plant location. The Brazilian iron ore industry has led the world in adopting column flotation technology for reducing the silica content of iron pellets[5]

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  • Production of High Grade Iron Ore Concentrates Using
    Production of High Grade Iron Ore Concentrates Using

    flotation popular in the mineral processing industry. For iron ore applications, the ability to wash the froth has provided a means for obtaining low concentrate silica levels while keeping iron losses to a minimum. Recent cost comparisons[4] have shown that the cost of installing a column flotation circuit is typically 20% - 30 % less than

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  • US5540336A - Method of producing iron ore concentrates
    US5540336A - Method of producing iron ore concentrates

    Iron ore concentrates can be obtained by the flotation of iron ores providing mixtures containing at least one ether canine of formula (I): R.sup.1 O--(C.sub.n H.sub.2n).sub.y --NH--(C.sub.m H.sub.2m --NH).sub.x H, in which R 1 is a linear or branched chain aliphatic hydrocarbon moiety having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds; n and m independently of one another represent the

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  • Two-step flotation recovery of iron concentrate from
    Two-step flotation recovery of iron concentrate from

    Aug 05, 2010 The flotation recovery of pure hematite, siderite, and quartz in the oleate-starch-CaCl 2 system is significantly different when the slurry pH varies from 4 to 12. A novel two-step flotation process was developed for the separation of iron concentrate from Donganshan carbonaceous iron ore through which the siderite concentrate is first

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  • Froth Flotation of Iron Ores
    Froth Flotation of Iron Ores

    Jan 02, 2012 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 practice in the iron ore industry, froth flotation has been established as an efficient method to remove impurities from iron ore

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  • Recovery of Iron Ore Tailings byColumn Flotation
    Recovery of Iron Ore Tailings byColumn Flotation

    The concentration of iron ore by flotation is a technique consolidated worldwide for mineral particles ranging from 10 to 250 μm [1]. In Brazil, all the main pellet-feed producers use re- verse flotation, being the tailing made up mostly of quartz and a concentrate constituted of iron oxides and iron hy- droxides

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  • (PDF) Reagents in iron ores flotation
    (PDF) Reagents in iron ores flotation

    The flotation process responses were: silica content in the concentrate, iron grade in the tailings, weight and metallurgical recoveries in the concentrate and Gaudin's selectivity index. The

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  • Flotation - Mineral Processing & Metallurgy
    Flotation - Mineral Processing & Metallurgy

    Jan 11, 2016 Jan 11, 2016 flotation, concentrate filtration, and; tailing disposal sections. In the crushing section of the plant the ore from the mine is broken down to about 3/8-in. size in two or three stages without the use of water except as a spray to remove dust, this being the economical limit of dry crushing machinery in modern practice

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  • Depressants and Flocculants in Iron Ore Beneficiation
    Depressants and Flocculants in Iron Ore Beneficiation

    Aug 18, 2019 Aug 18, 2019 For flotation the fine fraction of a Mesabi gravity concentrate analyzing 55.2% iron (corresponding to Ore C) was used. A 500-gram charge was pulped to 30 percent solids in a batch laboratory conditioner, a predesigned amount of starch was added, the pH of the pulp was adjusted to 11.8, and the pulp was conditioned for two minutes

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  • Iron Ore - Clariant Ltd
    Iron Ore - Clariant Ltd

    The FLOTIGAM series includes ether amines, ether diamines and other cationic collectors for every iron ore flotation challenge. Our FLOTIGAM collectors are able to produce iron ore concentrate with low silica content by froth flotation, resulting in high purity

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  • Treatment and Recycling of the Process Water in Iron Ore
    Treatment and Recycling of the Process Water in Iron Ore

    Aug 08, 2017 Bench-scale flotation studies on the treated tailings wastewater indicated that the iron recovery and grade of concentrate were close to those of freshwater. Coagulating sedimentation and oxidation treatment of process water in iron ore flotation of Yuanjiacun iron mine had been studied. The process water of this mine carried residual

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  • Improving recovery of iron using column flotation of iron
    Improving recovery of iron using column flotation of iron

    Nov 01, 2020 Nov 01, 2020 The first industrial application of flotation columns in this country was silica flotation to concentrate iron ore at Samarco Minera o in the early 90′s and soon a great expansion of the application of this technology was observed in the iron ore flotation circuits (Flint et al., 1992, Araujo and Peres, 1995)

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  • Minerals | Special Issue : Iron Ore Flotation
    Minerals | Special Issue : Iron Ore Flotation

    May 12, 2021 Iron ore flotation is a key technique to concentrate intermediate-low-grade ore, in order to reach the market requirements for higher-grade concentrates of iron. The presence of some impurities in addition to quartz in iron ore, aluminium silicates, and minerals containing phosphorus impair productivity in the steel industry and have an impact

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  • Silica and Iron Recovery from a Residue of Iron Ore Flotation
    Silica and Iron Recovery from a Residue of Iron Ore Flotation

    A study of silica and iron recovery from the iron ore concentration tailing is presented. The residue is composed of 40.1% Fe, 33.4% SiO2, 8.31% Al2O3, 0.08% P, and 0.34% MnO. The developed process of silica and iron recovery consisted of size classification, magnetic separation, and removal of impurities by leaching. A concentration of SiO2 from 33.4% to 67.0%, with 60.0% of mass reduction

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  • Hematite Processing by Flotation
    Hematite Processing by Flotation

    Apr 19, 2016 Deposits of comparatively lower grade iron ore that remain relatively untouched or by-passed, are now most important because of increase in consumer demands. Deposits of comparatively low grade specular hematite amenable to beneficiation by flotation have produced concentrates superior in grade to direct shipping ores

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