##tihuan2##The physical methods involved in the colombo-tantalite beneficiation (gravimetric and magnetic separation) allow to concentrate the colombo-tantalite fraction …
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##tihuan2##This work aims at recovery of tantalum and niobium from Abu Dabbab deposits at the Eastern Desert of Egypt. The beneficiation was successfully performed using shaking table concentrator and carpco …
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores.
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##tihuan2##The beneficiation methods for Ethiopian Kenticha pegmatite-spodumene ores were assessed through mineralogical and quantitative analyses with X-ray diffraction (XRD) and energy-dispersive X-ray fluorescence (EDXRF). The tantalite in the upper zone of the Kenticha pegmatite-spodumene deposit is 58.7wt% higher than that in the inner …
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##tihuan2##Keywords: tantalite; beneficiation; magnetic separation; acid leaching 1. Introduction The production of pure tantalum and niobium metals from mineral ore entails the removal of associated impuri-ties and the subsequent separation of these metals from each other. The successful beneficiation of tantalum and niobium ores may vary significantly.
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##tihuan2##Compared with the conventional flowsheet, the novel flowsheet was more effective for columbite–tantalite beneficiation and beneficial to the comprehensive recovery of nonmetallic minerals.
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##tihuan2##The beneficiation methods for Ethiopian Kenticha pegmatite-Spodumene ores have been assessed through mineralogical and quantitative analyses with X-ray Diffraction (XRD) and Energy Dispersive X-ray Fluorescence (EDXRF). The upper zone deposit of Kenticha pegmatite-Spodumene deposit contains up to 58.7 weight%, more tantalite than the …
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##tihuan2##Tantalum and niobium are extracted from a variety of minerals and concentrates. The major source of niobium and tantalum is columbite-tantalite, also called coltan, with a general chemical formula (Fe,Mn)(Nb,Ta) 2 O 6.The two elements also exist in more than 150 other minerals and are usually present as complex metal oxides and …
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##tihuan2##Compared with the conventional flowsheet, the novel flowsheet was more effective for columbite–tantalite beneficiation and beneficial to the comprehensive recovery of nonmetallic minerals.
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##tihuan2##Primary beneficiation was successfully performed prior to dissolution of manganotantalite (sample A) and ferrotantalite (sample C) samples obtained from two different mines in the Naquissupa area, Mozambique. Magnetic separation removed the majority of iron and titanium, whereas H2SO4 leaching …
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores. Tantalite ores obtained from eight different well-known locations of the mineral in the country were analyzed with 109Cd excitation source Energy Dispersive X-ray spectrometry using ...
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores. ... Both the X-ray diffraction ...
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##tihuan2##The extraction of niobium and tantalum from two tantalum-niobium ore materials obtained from Mozambique, using a combination of magnetic separation, acid leaching, solvent extraction and ion exchange methods was investigated. One sample consisted mainly of manganotantalite while the other of ferrotantalite. The magnetic …
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores. Tantalite ores obtained from eight different well-known locations of the mineral in the country were analyzed with 109Cd excitation source Energy Dispersive X-ray …
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##tihuan2##Tantalite ores are mined and processed through several steps using different technologies for production of pure tantalum. Successful processing of minerals into various useful products is usually based on the understanding of the differences in the physical or chemical properties of various species present [21].In this regard, a proper knowledge of …
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##tihuan2##The present review focuses on the effective beneficiation of columbite-tantalite, extraction and purification of Ta and Nb using various technologies and the …
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##tihuan2##Tantalite niobate is mainly composed of tantalum, niobium tin, tungsten, lithium, beryllium and other polymetallic ores. It has the characteristics of low grade of raw ore, complex mineral composition, high mineral density and brittle property.
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##tihuan2##The main valuable minerals in the ores are tantalite, columbite, tantalum–niobite, and microlite, and the gangue minerals associated with …
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##tihuan2##The Process Beneficiation of Minerals such as the Tantalum and Niobium Ores May Vary Significantly and the Final Sequence of Steps Normally Depends on the Physiochemical Properties. these Properties are Often Utilised in Designing a Processing Route. Removal of Iron and Titanium from the Manganotantalite and Ferrotantalite Samples in this Study …
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##tihuan2##In addition to the necessary equipment, different beneficiation methods also have a certain machine. The gravity beneficiation line also use the jigger, spiral chute, shaking table; flotation beneficiation line uses the stirring tank, flotation cell, tank, and dryer; magnetic beneficiation line uses the magnetic separator or dryer.
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores. Tantalite ores obtained from eight different well …
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##tihuan2##optimization of Nb and Ta recovery from typical Rwanda and Nigerian columbite-tantalite ores reports mainly the results of characterization of the ore material-samples from Rwanda and their concentrates obtained after rough centrifugal gravity concentration. Further the columbite-tantalite
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##tihuan2##The beneficiation methods for some tantalite ores from selected deposits in Nigeria have been assessed through mineralogical and compositional analyses of the ores. Tantalite ores obtained from eight different well-known locations of the mineral in the country were analyzed with 109 Cd excitation source Energy Dispersive X-ray spectrometry ...
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##tihuan2##Tantalite ores obtained from eight different well-known locations of the mineral in the country were analyzed with 109 Cd excitation source Energy Dispersive X-ray spectrometry using the emission ...
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##tihuan2##The beneficiation methods for Ethiopian Kenticha pegmatite–spodumene ores were assessed through mineralogical and quantitative analyses with X-ray diffraction (XRD) and energy-dispersive X-ray fluorescence (EDXRF). The tantalite in the upper zone of the Kenticha pegmatite–spodumene deposit is 58.7wt% higher than that in the inner zone.
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##tihuan2##The present review focuses on the effective beneficiation of columbite-tantalite, extraction and purification of Ta and Nb using various technologies and the feasibility of processes by considering present industrial practices and recent research. ... Welham (2001) studied Brunauer–Emmett–Teller (BET) surface area and X-ray …
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##tihuan2##The magnetization rate of niobium-iron ore-tantalite is (22.1 to 37.2) × 10-6. The dielectric coefficient of niobium-iron ore is 10 to 12, and tantalite is 7 to 8. The density of the mineral is 5.15 to 8.20 (increases with the increase of tantalum content). Tantalum-niobium ore beneficiation technology
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##tihuan2##Tantalite ores leached at 50 oC for 3 hrs in the presence of concentrated H2SO4 was found to be the most appropriate condition to remove radioactive elements.
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