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  • Effect of Oxidation on Flotation of Chromite & Olivine

    Domestic chromite deposits are relatively small and most are of a lower grade than other resources throughout the world. Most domestic chromite ores also contain silicate gangue minerals that are difficult to remove. ... Grinding times were adjusted to obtain similar size distributions for each material. ... (18 to 70 h) at 150°C were required ...

  • Production of Ferro-Chrome | ispatguru.com

    Several carbides therefore form preferentially to the metallic Cr and Fe during the reduction process of chromite ores. ... Lower C levels cannot be reached in the SAF and a second process step is needed. Raw materials. ... 1.585 tons for Mn and 0.405 tons for Si, though in actual practice the consumption can differ slightly to achieve targeted ...

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  • The interactive effects of chemical and process parameters ...

    The interactive effects of chemical and process parameters on the flotation performance of a UG2 ore B. McFadzean⇑, S. Pani, J. Wiese, C.T. O'Connor Centre for Minerals Research, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa

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    This invention particularly relates to a process for the preparation of an improved copper chromite catalyst with specific composition and physical properties containing copper, chromium, zinc and aluminium as catalyst components in order to achieve selective production of tetrahydrofuran via single step hydrogenation of diethyl maleate.

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    in the Coremaking Department of a Foundry Klaus Löchte Hüttenes-Albertus Chemische Werke July, 1998 ... cold box process. These essentially represent silica sand, chromite sand and zircon sand. 4 2.1.1 Silica Sands ... required to achieve an identical level of core compaction.

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    Development of Chromite Sinter from Ultra-Fine Chromite Ore by Direct Sintering Sanjay AGARWAL,1)* Jagannath PAL1) and Dinabandhu GHOSH2) 1) MEF Division, CSIR-National Metallurgical Laboratory, Jamshedpur-831007 Jharkhand State, India. ... phase required for sintering) and coke (added as fuel to attain the sintering temperature in a sinter pot

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  • Chromite (Cr2FeO4) | CrFeO4 - PubChem

    The samples were sieved to obtain a uniform particle size < 500 microns. ... The amount of beneficiation required and the techniques used depend on the ore source and end-use requirements. When the chromite is clean and mossive, only hand sorting of coarse material and gravity separation of fine material may be required. ... The main objective ...

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  • Chromium processing | Britannica.com

    Because of the greater energy required to reduce silica to silicon, the smelting of ferrochrome silicon consumes 7,600 kilowatt-hours per ton of product. Low-carbon ferrochromium. When chromite and lime are melted in an open electric-arc furnace and then contacted with ferrochrome silicon, a low-carbon (0.05 percent) ferrochromium can be obtained.

  • Flotation of Chromite Ore

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