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Beneficiation of Oolitic Iron Ores - Hatch

Mineral processing of the ore to generate a commercial iron ore concentrate is very challenging due to the nature of these ores. Accordingly, Hatch and Ironstone are developing a new pyrometallurgical process Hatch Ironstone Chloride Segregation to produce metallic iron from high silica and high phosphorus oolitic iron ores. Following the chloride segregation process, the treated ore is subjected to …

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  • v118n11a8 Effects of oolitic haematite ore additions on ...

    v118n11a8 Effects of oolitic haematite ore additions on ...

    60% of its requirements Xu and Shi, 2015. In order to reduce dependence on foreign resources, it is necessary to increase the development and utilization of existing resources in China. haematite is widely distributed and available in China. The explored reserves of this type of reach 3720 Mt ...

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  • Iron processing | Britannica

    Iron processing | Britannica

    In both cases, smelting involved creating a bed of red-hot charcoal to which iron ore mixed with more charcoal was added. Chemical reduction of the ore then occurred, but, since primitive furnaces were incapable of reaching temperatures higher than 1,150° C 2,100° F, the normal product was a solid lump of metal known as a bloom.

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  • Separation of P Phase and Fe Phase in High Phosphorus ...

    Separation of P Phase and Fe Phase in High Phosphorus ...

    Due to the structure of the high phosphorus and the closely wrapping of apatite and hematite phases, an approach using jet mill was utilized to grind the to ultrafine 0.01 to 0.001 mm, which realizes the dissociation of apatite phase and hematite phase. Then in a laboratory scale rotary furnace, high phosphorus ores of different sizes were reduced by reducing gas at sub ...

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  • Enhance the carbothermic reduction of high phosphorus ...

    Enhance the carbothermic reduction of high phosphorus ...

     · Xu studied the effect of sodium carbonate on direct reduction of high phosphorous oolitic hematite, it is shown that the addition of sodium carbonate caused the destruction of oolitic structure, promoted the aggregation and growth of metallic iron particles, and was beneficial to the dissociation of metallic iron particles from gangue. Therefore, it can be seen that the addition of additives can further …

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  • Minette | Definition of Minette by Merriam-Webster

    Minette | Definition of Minette by Merriam-Webster

    Minette definition is - a dark igneous rock composed chiefly of biotite and orthoclase that occurs usually in narrow dikes and sheets and that constitutes one of the lamprophyres.

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  • US2514958A - Concentration of oolitic iron ores - Google ...

    US2514958A - Concentration of oolitic iron ores - Google ...

    US2514958A US794001A US79400147A US2514958A US 2514958 A US2514958 A US 2514958A US 794001 A US794001 A US 794001A US 79400147 A US79400147 A US 79400147A US 2514958 A US2514958 A US 2514958A Authority US United States Prior art keywords values values particles Prior art date 1947-12-26 Legal status The legal status is an assumption and is not a legal …

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  • Dephosphorization Treatment of High Phosphorus Oolitic ...

    Dephosphorization Treatment of High Phosphorus Oolitic ...

    Treatment of High Phosphorus Oolitic Iron Ore by Hydrometallurgical Process and Leaching Kinetics

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  • Upgrading iron and removing phosphorus of high phosphorus ...

    Upgrading iron and removing phosphorus of high phosphorus ...

    complex refractory iron ore. The methods applied to processing high phosphorus oolitic iron ore are mainly magnetic roasting [18], direct reduction [19], deep reduction, and suspension roasting, along with others [20, 21]. However, emphasize by segregation roasting on high phosphorus oolitic iron ore was rarely investigated.

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  • Microwave Assisted Liberation of High Phosphorus Oolitic ...

    Microwave Assisted Liberation of High Phosphorus Oolitic ...

    Omran et al. [27] [28] studied the influence of microwave pre- on the liberation high phosphorus . They concluded that intergranular fractures formed between the ...

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  • Reaction Behavior of Iron Minerals and Metallic Iron ...

    Reaction Behavior of Iron Minerals and Metallic Iron ...

    The reaction behavior of minerals and growth of metallic particles in coal-based reduction of an were investigated by X-ray diffraction XRD and scanning electron microscopy/enegry dispersive spectroscoy SEM/EDS, respectively. The results show that, the reduction of minerals occurred in the sequence of Fe2O3 → Fe3O4 → FeO → Fe. During the reduction, the ...

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  • Cleveland Ironstone Formation -

    Cleveland Ironstone Formation -

    The Cleveland Ironstone Formation is a sequence of marine ironstone seams interbedded with shale and siltstone units which collectively form a part of the Lower Jurassic System of rocks underlying Cleveland in North Yorkshire.Exploitation of the ironstone seams became a major driving force behind the industrialisation of the Teesside district during the mid- to late-1800s.

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  • Improvement of phosphorus removal from iron ore using ...

    Improvement of phosphorus removal from iron ore using ...

     · improves the liberation of high phosphorus oolitic iron ores by generating intergranular fractures in oolitic iron ores . The difference in the absorption of microwave energy, thermal expansion and the dielectric properties of iron and gangue minerals leads to the generation of intergranular fractures between iron and gangue minerals [17] , [22] , [23] , [24] , [25] .

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  • Oolite -

    Oolite -

    Oolite or oölite egg stone is a sedimentary rock formed from ooids, spherical grains composed of concentric layers.The name derives from the Ancient Greek word ᾠόν for egg.Strictly, oolites consist of ooids of diameter 0.25–2 millimetres rocks composed of ooids larger than 2 mm are called pisolites.The term oolith can refer to oolite or individual ooids.

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  • Hematite: A primary ore of iron and a pigment mineral

    Hematite: A primary ore of iron and a pigment mineral

    Hematite: A specimen hematite . Oolites are tiny round spheres of chemically precipitated hematite. Oolites are tiny round spheres of chemically precipitated hematite. The specimen in the photo is about four inches ten centimeters across, and the largest oolites are a …

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  • iron extraction from oolitic iron ore by a deep reduction ...

    iron extraction from oolitic iron ore by a deep reduction ...

    Highphosphorus oolitic iron ore treated by contained 4273 iron mainly present as magnetite and 093 phosphorus present as collophane lowintensity magnetic separation lims was combined with reverse flotation to increase the iron and reduce the phosphorus contents of the roasted product the results showed that an optimized iron ore concentrate

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