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oolitic hematite keywords

  • iron ore hematite magnetizing roasting - MC Machinery

    Magnetizing roasting mechanism and effective ore 2011-04-30 Magnetizing roasting of oolitic hematite ore from western Hubei Province was investigated. The MC Machinery Email [email protected] Call +44 (0) 1235832407 Home ...

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  • Beneficiation Study on an Oolitic Hematite | Scientific.Net

    The oolitic hematite with a lower iron content and a higher phosphorus content will be a potential source of raw iron ore for the Chinese iron and steel industry. The magnetization reducing roasted and magnetic separation is a practical ...

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  • Keywords: High phosphorus oolitic hematite Iron increase and phosphorus removal Magnetic separation Flotation Leaching Deep reduction short-process smelting technology Fund : :(:51604063)。

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  • CN103014212A - Technical method for producing metal …

    The invention discloses a technical method for producing metal iron powder by using a carbon-containing high-phosphorus oolitic hematite pellet, and belongs to the field of iron and steel metallurgy and mineral processing. The ...

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  • Microwave Assisted Liberation of High Phosphorus Oolitic ...

    The heating rate of high phosphorus oolitic iron ore was studied. Crystallinity of hematite was characterized before and after microwave pretreatment. The results indicated that intergranular fractures formed between the gangues

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    2014/08/06· Keywords Refractory iron ore, Siderite, L imonite, Oolitic hematite, Comp lex iron ore 、 、 。 21 , ,

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  • Origin of Sulfur in Some Magmatic-Hydrothermal …

    Origin of Sulfur in Some Magmatic Hydrothermal Ore Deposits of South China(Ishihara et.al) ― 163 ― appeared in literature are measured on pyrite contained in granitoids, which could not be primary magmatic mineral. If the host

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  • Study on Reduction of Oolitic Hematite by …

    Keywords: Oolitic hematite, Microwave, Metallization rate. Abstract. Oolitic hematite is widely distributed and counted about 10% of the total iron ore resources in China. The powders mixture of the oolitic hematite, the graphite ...

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  • US5536294A - Process for extracting precious metals …

    A process for extracting precious metal from volcanic ore includes the steps of crushing the ore, heating the ore in a hydrogen atmosphere to soften oxide mineral encapsulating the precious metal, cooling the ore, grinding the ore ...

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  • Keywords: Oolitic hematite Magnetic roasting Low intensity magnetic separation Reverse flotation :,,, .[J], 2014,V30(05): 20-22+42

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  • Mineração - SciELO

    (α-FeOOH) and hematite ( α-Fe 2 O 3), it can be inferred that phosphorus occurs, prob - ably, in the form of phosphate adsorbed on the particle surface or occluded in the micropores. Another possibility is that the phosphorus is

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  • Behavior of phosphorus during the carbothermic …

    Behavior of phosphorus during the carbothermic reduction of phosphorus-rich oolitic hematite ore in the presence of Na 2 SO 4 Author links open overlay panel Mingjun Rao Chongzhong Ouyang Guanghui Li Shuhui Zhang Yuanbo Zhang Tao Jiang

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  • EFFECTIVE PROCESSING OF LOW-GRADE IRON ORE ...

    568 A.A.S. Seifelnassr et al. goethite and hematite in an oolitic pisolitic texture. Secondly, the iron minerals are finely disseminated in silica and silicates. This requires fine grinding to obtain adequate degree of liberation of

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  • Microwave Assisted Liberation of High Phosphorus Oolitic ...

    Crystallinity of hematite increased with the microwave exposure time. The influence of microwave treatment on the liberation of iron ore from the high phosphorus oolitic iron ore from Aswan region, Egypt was studied.

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  • Study on the strength of cold-bonded high-phosphorus oolitic ...

    Composite briquettes containing high-phosphorus oolitic hematite and coal were produced with a twin-roller briquette machine using sodium carboxymethyl cellulose, molasses, starch, sodium silicate, and bentonite as binders. The

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  • REMOVAL OF PHOSPHORUS THROUGH …

    Paper No. 389 REMOVAL OF PHOSPHORUS THROUGH ROASTING OF OOLITIC IRON ORE WITH ALKALINE EARTH ADDITIVES K Ionkov 1, S Gaydardzhiev 2, D Bastin 3, A Correa de Araujo 4 and M Lacoste 5 ABSTRACT The

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  • Study on the Reduction of Oolitic Hematite Ores in N2 …

    Abstract: The oolitic hematite will be a potential source of raw iron ore for the Chinese iron and steel industry. Up to now, the oolitic hematite have hardly been utilized effectively by any single traditional technology. [6] Shuwen Chen, Yongzhen Zeng, Qiping Chen: Experimental research on the direct renduction magnetic separation of Hezhang oolitic hematite …

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  • The Chinese Iron Ore Deposits and Ore Production | …

    2018/07/11· Raw materials of oolitic hematite, hematite with carbonate, iron tailings, red mud, Zinc-bearing iron ore were tested by this technic. After the magnetic separation, the deep reduced iron powder with 85–95% Fe …

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  • roasting of haematite ore in china

    Keywords: oolitic hematite ore, fluorapatite, reductive roasting, dephosphorization, ... The oolitic hematite ore sample from Hunan province, China was used. Get Price EXTRACTION OF IRON- EXTRACTION OF IRON FROM ...

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  • Behavior of Fe and P during reduction magnetic roasting ...

    2018/09/19· (2019). Behavior of Fe and P during reduction magnetic roasting-separation of phosphorus-rich oolitic hematite. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects: Vol. 41, No. 1, pp. 47-64.

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  • Selective Liberation of High-Phosphorous Oolitic …

    minerals Article Selective Liberation of High-Phosphorous Oolitic Hematite Assisted by Microwave Processing and Acid Leaching Xianyan Cai 1,2, Gongming Qian 1,2,* ID, Bo Zhang 1, Qiushi Chen 1 and Chenqiang Hu 1 1 College of Resources and Environmental Engineering, Wuhan University of Science and Technology, ...

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  • Reaction Behavior of Phosphorus in Coal-Based …

    Keywords: oolitic hematite ore; reduction; phosphorus; migration behavior; pre-dephosphorization 1. Introduction Due to the depletion of high quality iron ores with the rapid development of the iron and steel industry, the utilization ...

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  • ___ …

    2015/10/10· Keywords Oolitic hematite,Microfine dissemination,Suspension roasting,Magnetic separation [67 ] [45 ] 32%, 11

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  • Dephosphorization of high phosphorus oolitic hematite …

    Among the three acids (HCl, H 2 SO 4 and HNO 3), HCl is the best choice of acid leaching for dephosphorization of high phosphorus oolitic hematite. The optimum acid leaching dephosphorization conditions are 0.2 mol/L HCl, reaction temperature of 298 K, reaction time of 10 min, S/L ratio of 0.03 g/mL, stirring speed of 300 rpm, and the …

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  • Remanent magnetization of oolitic ironstone beds, …

    2014/06/06· Chamosite-hematite type oolitic ironstone is distributed in the Cretaceous-Tertiary (K-T) boundary zone of the Hazara area, Lesser Himalayan thrust zone, in the northwestern margin of the Indo-Pakistani subcontinent. A total of 52 oriented samples were collected from 6 beds in two open pit mines, Nathia Gali and Bagnotar. Ferromagnetic properties of the oolitic …

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  • Enhance the carbothermic reduction of high …

    Enhance the carbothermic reduction of high phosphorus oolitic hematite with borax To cite this article: Run Huang et al 2019 Mater. Res. Express 6 056509 View the article online for updates and enhancements. This content was

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  • hematite iron ore smelting in the 2010

    2017/07/19· titanium ore mining equipment supplier deepest quarry in durban south africa empresa chancadora centauro build my own dry …

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  • Intermittent Microscopic Observation of Structure …

    The mineralogy of oolitic hematite ores is shown in Fig. 1, in which (a) illustrates an oolitic distribution and (b) presents a typical oolitic structure observed in this study. Usually, oolitic structure is composed of one or more elliptical shape ring. 12 ) Diameter of the oolitic structure in the sample was about 200 mm.

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  • Synchronous Upgrading Iron and Phosphorus …

    Metals 2016, 6, 123 2 of 17 Li et al. reported the effect of sodium sulfate on reduction roasting and P removal from high-phosphorus oolitic hematite ore. The results showed that a magnetic concentrate with total iron grade of 92.7%

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  • Recovery of metallic iron from high phosphorus oolitic ...

    Recovery of metallic iron from high phosphorus oolitic hematite by carbothermic reduction and magnetic separation H. Han Key Laboratory of Green Process and EngineeringInstitute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China Correspondence [email protected]

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