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Flotation Of Chromite Ore

The Bureau of Mines, U.S. Department of the Interior, devised a flotation technique for upgrading chromite in chromium ores and gravity concentrates. The technique consisted of cationic flotation of chromite from a slime-free pulp acidified to ph 2.5 Or lower using h2so4 modifier. Flotation results showed that ore containing serpentine as the primary gangue mineral was more amenable to concentra

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  • US2469422A - Selective flotation of chromite ores
    US2469422A - Selective flotation of chromite ores

    US2469422A US514987A US51498743A US2469422A US 2469422 A US2469422 A US 2469422A US 514987 A US514987 A US 514987A US 51498743 A US51498743 A US 51498743A US 2469422 A US2469422 A US 2469422A Authority US United States Prior art keywords treatment concentrate pulp flotation froth Prior art date 1943-12-20 Legal status (The legal status is an assumption and is not a

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  • FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES
    FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES

    FLOTATION BEHAVIOR OF SUDANESE CHROMITE ORES … 651 2. EXPERIMENTAL 2.1 Materials 2.1.1Chromite Ore Sample A chromite ore sample about (250 kgs) of low grade ore was collected from Chickay mines, at the Ingassana Hills. A high grade chromite ore sample (10Kg) and a similar

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  • Flotation of chromite and serpentine - ResearchGate
    Flotation of chromite and serpentine - ResearchGate

    Flotation of chromite and serpentine ... The world supply and reserves of chromite or chrome ore (FeCr2O4) have been dominated mainly by South Africa and the ex-USSR, which made chromite a

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  • Chromium: Kazchrome completes chromite floatation trials
    Chromium: Kazchrome completes chromite floatation trials

    Jan 13, 2021 In December 2020, Eurasian Resources Group (ERG) reported that its Kazakhstan headquartered subsidiary, Kazchrome, had successfully completed trials for the use of floatation technology in the recovery of chromite from tailings at the Donskoy Processing Plant. Trials of the novel floatation technology resulted in a chromium oxide recovery of 55%, with the specifications of the

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  • The Characterisation of a Two Stage Flotation Circuit
    The Characterisation of a Two Stage Flotation Circuit

    chromite recoveries was determined by sampling around the unit. The changes in ore floatability characteristics were monitored by carrying out batch flotation tests on samples

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  • Five Chrome Extraction Process to Teach you the Chromite
    Five Chrome Extraction Process to Teach you the Chromite

    Oct 19, 2020 At present, we can use the flotation process to recover the chromite with fine grain size (-100um) after the gravity separation. The results show that Mg2+ and Ca2+ can inhibit the chromium ore

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  • Mineralogical characterisation of chromite in the UG2 Reef
    Mineralogical characterisation of chromite in the UG2 Reef

    These three ore bodies are principally beneficiated by froth flotation. During the beneficiation of chromite hosted PGE’s by froth flotation, chromite represents the principal gangue mineral. This is particularly true for the UG2 main seam

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  • Chromite Ore how to get it? :: Rise of the Tomb Raider
    Chromite Ore how to get it? :: Rise of the Tomb Raider

    Feb 01, 2016 After doing that, go look for ore veins (e.g. in caves) and you'll find some now also contain Chromite Ore. Note: Even if you have reached the limit for the other type of ore (Magnesite Ore) in your Inventory, if a ore vein also contains Chromite Ore you'll still be able to mine it (you just won't get any more Magnesite Ore)

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  • Effects of frother type and froth height on the flotation
    Effects of frother type and froth height on the flotation

    Oct 01, 2003 About 70% of the UG2 reef consists of the gangue mineral chromite (FeO Cr 2 O 3).In the processing of UG2 ore by flotation for the recovery of platinum group elements (PGEs) the presence of chromite in the concentrates can cause serious downstream processing problems and a grade of less than 3% Cr 2 O 3 is sought. This constrains operating procedures and compromises optimum

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  • flotation of chromite from the silica
    flotation of chromite from the silica

    Flotation Of Chromite From The Silica. heavy minerals concentration and glass-grade silica ,minerals such as zircon, kyanite, sillimanite. chromite, corundum, and andalusite are limited to for producing flat-glass-grade silica by froth flotation. this was..fluoride activation in the flotation of chromite,hydrofluoric acid also attacks the silicon sites at p h i tion of chromite from silicate

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  • Characterisation and Flotation of a Weathered Platinum
    Characterisation and Flotation of a Weathered Platinum

    [2] D. J .Z. Ekmek i, S. A. Bradshaw Allison, and P. J. Harris, “Effects of frother type and froth height on the flotation behaviour of chromite in UG2 ore,” Minerals Engineering, vol. 16, no. 10, pp. 941-949, 2003. [3] N. F. Dawson, “Experiences in the production of metallurgical and chemical grade UG2 chromite concentrates from

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  • NIOSHTIC-2 Publications Search - 10004805 - Column
    NIOSHTIC-2 Publications Search - 10004805 - Column

    The Bureau of Mines devised a column flotation technique using either fine or coarse bubbles and compared it with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7% Cr2O3-grade rougher concentrate with 87% recovery, compared with 43.8% and 43.5% Cr2O3-grade rougher concentrates with 85% and 77% recovery for coarse-bubble

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  • Flotation of Chromite Ore
    Flotation of Chromite Ore

    Jun 05, 2017 The general flotation method was developed by Havens. Deslimed chromite ore was floated at pH 1.5 to 5.5 using a long-chain fatty-acid collector and soluble fluoride ions as a silicate depressant. The Havens method was later modified slightly

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  • US4311584A - Amine flotation of chromite from acidic pulps
    US4311584A - Amine flotation of chromite from acidic pulps

    7 rows US4311584A - Amine flotation of chromite from acidic pulps - Google Patents. Chromium values are

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  • The flotation behaviour of chromite with respect to the
    The flotation behaviour of chromite with respect to the

    Oct 01, 1999 Flotation behaviour of chromite with respect to beneficiation of UG2 ore 1179 Air was introduced into the cell as the flotation gas via a syringe needle. The gas bubbles rose through the cell, passing through the pulp where collision between bubbles and mineral particles occurred

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  • Column flotation of Montana chromite ore | SpringerLink
    Column flotation of Montana chromite ore | SpringerLink

    The US Bureau of Mines compared column flotation using either fine or coarse bubbles with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column flotation produced a 44.7% Cr2O3-grade rougher concentrate with 87% recovery, compared with 43.8% and 43.5% Cr2O3-grade rougher concentrates with 85% and 77% recovery for coarse-bubble column flotation and conventional flotation

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