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Chromite Concentrates made from UG2 ores contain considerable chromite FeCr 2 O 4 The melting point of the slag is raised because of the chromite content In addition the chromium from the chromite may cause precipitation of the Fe Mg Cr 2 O 4 spinel which has a melting point of about 1600 176C in cooler parts of the furnace Nelson et al

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Conversion of Chromium Ore Processing Residue to Chrome Cr6 was produced from chromite ore at three facilities in smelting reduction of iron oxide to

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Chromite ores are the only source of chromium The majority of chromite ores are processed into an intermediate product called high carbon ferrochrome or charge chrome an alloy containing gt50 Cr about 68 C varying amounts of Si 04 depending on the process used with the balance Fe

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Chromite ore is mined along the Conventional scraper mining charge chrome is produced through a single stage process by smelting a mix of chromite

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2011128 ensp 0183 enspProcess update Direct reduction process using fines and with reduced CO2 emission A Morrison 1 S Hietkamp1 and D S van Vuuren1 A direct reduction process for refractory oxides and a life cycle analysis comparison with conventional pelletising and sintering process for chargechrome are presented The new route has potential to reduce the

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N Koleli A Demir in Environmental Materials and Waste 2016 11 2 3 2 Waste of Metallurgical Industry Approximately 96 of mined chromite is consumed by the metallurgical industry for the production of different grades of ferrochrome Ferrochrome is made by smelting chromite ore in an electric arc furnace with flux materials quartz dolomite limestone and aluminosilies and a

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Smelting Wikipedia Smelting is a process of applying heat to ore in order to extract a base metal It is a form of extractive metallurgy It is used to extract many metals from their ores including silver iron copper and other base metals Smelting uses heat and a chemical reducing agent to decompose the ore driving off other elements as gases or slag and leaving the metal base behind

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201959 ensp 0183 enspappliion for the KWG process Barnes Muinonen and Lavigne 2015 Winter 2015 Further investigations by NRCan confirmed that the addition of NaOH to chromite ores led to accelerated reaction rates and high degrees of metallization at lower temperatures than would be achieved by conventional smelting technologies Carbothermic

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