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·Three liquid phase extraction and separation of V V At low aqueous pH pH < 3 V V and Al III exist in the cation form of VO 2 and Al 3 of our suggested three liquid phase system for the application in processing of high chromium vanadium titanium magnetite herein various co existing impurity ions were considered in the acidic
·Based on the magnetic susceptibility values in Table iron minerals can be divided into two groups namely strong magnetic minerals that is magnetite % Fe and weakly magnetic minerals that is martite % Fe hematite % Fe specularite % Fe limonite % Fe and siderite % Fe While magnetite ores are naturally
·The implication of this result is that the separation of magnetite from aqueous solution can be achieved by magnetic means Batch adsorption studies Oyetade OA Nyamori VO Martincigh BS Jonnalagadda SB 2016 RSC Advances Nitrogen functionalised carbon nanotubes as a novel adsorbent for the removal of Cu II from aqueous solution †
·Gravity separation is traditionally employed depending on the liberation particle size in order to obtain a saleable chromite concentrate with at least Cr2O3 content of 44% and Cr/Fe ratio of
·Interpretation of the mineralizing environment of magnetite apatite deposits remains controversial with theories that include a hydrothermal or magmatic origin or a combination of those two processes To address this controversy we have analyzed the trace element content of magnetite from precisely known geographic locations and geologic
·The magnetite nanoparticles obtained under this condition have higher stability This is attributed to the higher DEG or EG sorbed on the oxide surface of magnetite nanoparticle owing to the interaction between polar functional groups of these compounds and protonated/hydroxylated surface sides of the oxide [19]
·magnetite using collectors of xanthate and dixanthogen It was found that xanthate or dixanthogen alone could not achieve selective separation between pyrrhotite and magnetite in flotation A high loss of magnetite was obtained with xanthate while a low desulfurization degree was obtained with dixanthogen
process of metalizing reduction and magnetic separation for vanadium titano magnetite by which the vanadium is enriched in the titanium bearing slag and the recovery ratios of Fe V and Ti are % % and % VO VC V are 850°C 905°C 939°C 1 079°C And the initial reaction temperatures of FeCr 2O 4 to Cr 2O 3 CrO Cr 3C
·In this study firstly an ultra pure magnetite concentrate with % Fe and % Si was obtained by reverse flotation from superior magnetite concentrate with % Fe and % Si Then using the ultra pure magnetite concentrate as raw material high purity reduced iron powder with Fe grade of % was prepared by Höganäs process of which
·The aim of this study is to examine the performance of wet drum magnetic separation on the recovery of magnetite from dry crushed feed The steel industry has depended on iron Fe concentrate
·As a result of dry magnetic separation at about 750 Gauss magnetic field conducted with mm size fraction under optimum conditions a magnetite concentrate assaying % Fe was
DOI / Corpus ID 237667191; Optimized magnetic separation for efficient recovery of V and Ti enriched concentrates from vanadium titanium magnetite ore Effect of grinding and magnetic intensity
·Magnetic separation technology plays a pivotal role in mineral processing offering efficient and versatile solutions for separating valuable minerals from gangue materials By harnessing the magnetic properties of minerals magnetic separators can selectively capture and concentrate target minerals based on their magnetic susceptibility facilitating high purity
·Separation of fine solids from the viscous solvent diluted bitumen at a low solvent/bitumen ratio of 2 1 using traditional methods such as gravity and centrifuge sedimentation or filtration was time consuming and ineffective The magnetite nanoparticles could be recycled and re used without further surface treatment
·Vanadium does not form concentrated deposits like other metals such as copper nickel or zinc It is widely dispersed in the Earth s crust with V 3 replacing Fe 3 or Al 3 in a number of minerals Vanadium as V 3 can substitute for Fe 3 in magnetite Wenk and Bulakh 2004 ; vanadium III and iron III ions have near identical ionic radii in octahedral sites
·Reverse flotation studies on magnetite samples have revealed that the use of starch as a depressant of Fe oxides has a hydrophilic effect on the surface of Fe bearing silicates and significantly decreases Fe in the silica rich stream when used in combination with an amine Lilaflot D817M In this study the effect of reverse flotation on the optimization of products
·To improve the quality of the iron concentrate the efficient separation of pyrrhotite from magnetite has always been an important beneficiation objective In this paper a novel collector of sulfur containing ionic liquid SCIL was synthesized by using the isobutyl xanthic acid with N tetrabutyl quaternary ammonium salt and its molecular structure was
·The separation results indicate that the cDMS separator is capable of producing a high separation selectivity for magnetite powders For feed particle size below mm the iron grade of magnetite in concentrate reached % at % recovery for magnetite with the iron grade of magnetite in tailings significantly reduced to %
·Nanosized magnetite is a highly toxic material due to its strong ability to generate reactive oxygen species in vivo and the presence of magnetite NPs in the brain has been linked with aging and
·Vanadium extraction from titano magnetite by using hydrofluoric acid was put forward The process of low intensity magnetic separation hydrofluoric acid leaching co precipitation with NaOH roasting with Na 2 CO 3 circulating water leaching and precipitation of vanadium has been results show that over 85% vanadium could be directly
3 ·magnetite conversion to hematite which starts from 300 °C and ends at 1300 °C As a result of this conversion the vanadium spinels are formed Studies have shown that magnetite grains are distributed after the separation of vanadium [17] Some sodium salts such as sodium carbonate produce complex compositions during
·The vanadiferous magnetite concentrate sample was obtained from Anhui province China As shown in Table 1 the total iron grade was % and the V 2 O 5 and TiO 2 contents were % and % respectively The main impurities included % SiO 2 and % Al 2 O shown by the XRD pattern in Fig 1 the main mineral phases were
·Recovering vanadium from vanadium titanium magnetite VTM ore using NH4 2C2O4 is a clean hydrometallurgical process but the drawback is the low recovery and slow kinetics due to the formation of inhibitor A novel energy efficient mathematical model was derived for green leaching of VTM in which the mechanical activation MA removed the
