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Patent silica iron flotation

Feb 12, 2021

This invention relates to a pretreating process in the beneficial-,ion of iron ores and constitutes a continuation in part of my copending application for U. S. Letters Patent, Serial No. 468,523

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  • patent silica iron flotation
    patent silica iron flotation

    US2419945A US567762A US56776244A US2419945A US 2419945 A US2419945 A US 2419945A US 567762 A US567762 A US 567762A US 56776244 A US56776244 A US 56776244A US 2419945 A US2419945 A US 2419945A Authority US United States Prior art keywords iron flotation silica lime pulp Prior art date 1944-12-11 Legal status (The legal

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  • patent silica iron flotation
    patent silica iron flotation

    Such collectors are employed in the separation of silica from iron ore, phosphate, and other valuable ores. US4422928A - Silica flotation collectors derived from isononyl alcohol

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  • patent silica iron flotation
    patent silica iron flotation

    A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate

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  • patent silica iron flotation
    patent silica iron flotation

    A method of beneficiating iron ores containing silica-bearing gangue by froth flotati6n which comprises the steps of making a pulp of ore hav65 ing a particle size suitable for use as flotation feed, subjecting the pulp to two successive conditioning operations, in the first with an effective amount of an anionic reagent selected from the group consisting of the long-chain, aliphatic 70

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  • patent silica iron flotation
    patent silica iron flotation

    A froth flotation process for separating silica from iron ore which comprises froth flotation of said ore in an aqueous medium containing a mixture of water dispersable acid salts of normal-alkyl primary amines having 5 to 12 successive chain lengths including both odd and even numbered carbon chains of 8 to 22 carbon atoms, the major proportion of the constituents

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  • patent silica iron flotation
    patent silica iron flotation

    A process of separating at least one mineral, e.g. silica, from an aqueous medium, e.g. one containing iron ore, by froth flotation using cationic alkyloxyalkaneamine collectors free of

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  • patent silica iron flotation
    patent silica iron flotation

    patent silica iron flotation. Recycling Free Full. Jan 11 2021 0183 32 Considering sustainable mining the use of seawater in mineral processing to replace conventional water is an attractive alternative especially in cases where this resource is limited However the use of this aqueous medium generates a series of challenges specifically in the

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  • patent silica iron flotation
    patent silica iron flotation

    flotation of low iron content ores occurring in the iron quadrangle region and also ... studied before the cationic reverse flotation. The first patent that employed the flotation process for the beneficiation of an iron ore made up of ... concentrate silica and

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  • patent silica iron flotation
    patent silica iron 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% SiO 2, 8.31% Al 2 O 3, 0.08% P, and 0.34% MnO

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  • patent silica iron flotation
    patent silica iron flotation

    Silica and Iron Recovery from a Residue of Iron Ore Flotation P. F. F. Martins, C. A. Morais*, F. S. Lameiras, R. O. Albuquerque Centro de Desenvolvimento da Tecnologia Nuclear , Belo Horizonte, Brazil Abstract 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% SiO 2

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  • patent silica iron flotation
    patent silica iron flotation

    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

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  • patent silica iron flotation
    patent silica iron flotation

    US3163518A - Method of liberating silica from iron ore - Google Patents Method of liberating silica from iron ore Download PDF Info Publication number US3163518A ... silica ore grains particles grain boundaries Prior art date ... Effect of particles size range on iron ore flotation . ... etc) for the separation of the circuit

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  • patent silica iron flotation
    patent silica iron flotation

    Mar 10, 2016 Iron ores can be concentrated either by direct anionic flotation of iron oxides or reverse cationic flotation of silica. In direct flotation, oleic acid or its sodium salt is the preferred reagent. Several studies on oleate-hematite interactions suggest that the oleate adsorption on hematite mainly depends on solution pH ( Paterson and Salman

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  • patent silica iron flotation
    patent silica iron flotation

    Flotation of iron ore The main objective of iron ore flotation is to upgrade the concentrate by removing silicates and/or phosphorus-containing minerals. The use of silica flotation has increased in recent decades. The trend will continue as more complex ores have to be mined and higher-grade iron ore concentrates with fewer

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  • patent silica iron flotation
    patent silica iron flotation

    iron oxide from floating. This is commonly referred to as 'reverse' flotation. Normally silica is floated using an amine as the flotation reagent. But reverse flotation using anionic collectors is also applicable to activated rock minerals (e.g., C2+ activation of silica) whereby the iron-bearing minerals are depressed

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  • patent silica iron flotation
    patent silica iron flotation

    Sep 20, 2020 In addition, a stabilizing flotation performance was registered by comparing the fed purity dispersions and concentrated purity dispersions for both iron and silica. The fed purity dispersions were considerably large, registering a standard

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  • patent silica iron flotation
    patent silica iron flotation

    The Brazilian iron ore industry has led the world in adopting column flotation technology for reducing the silica content of iron pellets[5]. Several companies have installed, or are in the process of insta lling column cells into their process flowsheets. Samarco Mineracao S.A., the first Brazilian producer to use column cells, installed

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  • patent silica iron flotation
    patent silica iron flotation

    The recovery of iron from the screw classifier overflow slimes by direct flotation was studied. The relative effectiveness of sodium silicates with different silica-to-soda mole ratios as

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  • patent silica iron flotation
    patent silica iron flotation

    CA-3001877-A1 chemical patent summary

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  • patent silica iron flotation
    patent silica iron flotation

    This invention relates to a process for beneficiating a silicious phosphate ore by flotation, the process comprising the steps of conditioning an aqueous slurry of phosphate ore at a pH of from 7.5 to 10.5 with a fatty acid and a fuel oil and aerating the conditioned phosphate slurry to float the phosphate, the improvement comprising conditioning the aqueous phosphate slurry prior to

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  • patent silica iron flotation
    patent silica iron flotation

    Nov 24, 2012 Patent US6098810 – Flotation process for separating silica from … A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or … More detailed

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  • patent silica iron flotation
    patent silica iron flotation

    Claim cation Date 27.06.91 F AMERICA 1. A froth flotation process for the separation of silica or siliceous ganguie from mineral values wherein the silica or siliceous gangue and mineral values In particulate form in an aqueous slurry are subjected to froth flotation in the presence of an amine collector and an alkanol amine corresponding to the formula NH(3x) wherein x is from 1

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  • patent silica iron flotation
    patent silica iron flotation

    The granulochemical analysis of the flotation residue showed that 79.0% of iron and 86.0% of aluminum are contained in the fraction below 37 m. In desliming of the sample in 37 m, recovery was 75.2% silica and 61.4% mass reduction. In this step, the SiO 2 content increased from 33.4% to

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  • patent silica iron flotation
    patent silica iron flotation

    May 01, 2018 The requirement for higher quality pellets demands that the silica content be lowered to levels ranging from 0.25% – 2.0% SiO2. Reverse flotation (silica is floated away from the iron concentrate) has proven to be an economical and effective method for reducing the concentrate silica content to very low levels

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  • patent silica iron flotation
    patent silica iron flotation

    the decrepitation process, and froth flotation followed by a reduction of iron bearing minerals in the final product using magnetic separators. Froth flotation is the most widely used procedure for beneficiation of lithium bearing silicates such as spodumene. Only a limited number of ores can be treated by heavy media

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  • patent silica iron flotation
    patent silica iron flotation

    US Patent # 4,364,824. ... (Ca) when soil has pH 8 and by Iron (Fe) and Aluminum (Al) when soil has pH 5.5. ... The Camis Mining flotation plant in Turkey treats silica sand using three

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  • patent silica iron flotation
    patent silica iron flotation

    Flotation Of Silica From Heavy Minerals Crusher USA patent silica iron flotation heavy mineral extract froth flotation in silica sand froth flotation of silicate minerals froth flotation rare earth minerals. removing minerals from glass sand

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