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high concentration tailings magnetic concentrate

Leaching Titaniferous Magnetite Concentrate by Alkaline

2021-6-16  Leaching titaniferous magnetite concentrate with alkali solution of high concentration under high temperature and high pressure was utilized to improve the grade of iron in iron concentrate and the grade of TiO 2 in titanium tailings. The titaniferous magnetite concentrate in use contained 12.67% TiO 2 and 54.01% Fe. The thermodynamics of the possible reactions and the kinetics of leaching process

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(PDF) Leaching Titaniferous Magnetite Concentrate by

Leaching titaniferous magnetite concentrate with alkali solution of high concentration under high temperature and high pressure was utilized to improve the grade of iron in iron concentrate and

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Evaluation of Advanced Gravity and Magnetic

2021-10-15  magnetic separations on the recovery of chromite from the fine Platinum Group Metals (PGM) tailings consisting of particles 80% passing 75 µm with about 45% being >45 µm resulting in high chromite losses. The PGM plant tailings were subjected to X-ray fluorescence, scanning electron microscopy and particle size distribution analyses.

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Tailings and concentrate dewatering after wet selection of

2021-10-19  After the wet selection of magnetite, it is divided into tailings and concentrates. The output of tailings is determined according to the ore grade, concentrate grade and the process used in the beneficiation. When the ore grade is better, the tailings output is lower; the higher the concentrate grade, the lower the tailings

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PRODUCTION OF HEAVY-MEDIA-QUALITY MAGNETITE

2010-7-21  The tromp process, developed in 1938, was the first to employ magnetite medium commercially. The “heavy media separation” process, originally developed for the concentration of ore, was introduced by the American Cynamid Company for cleaning of coal in about 1940.

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Production of a Phosphate Concentrate from the Tailings

The magnetic material (mainly magnetite (Fe 3 O 4)) is sent to the tailings ponds as the third reject stream, while the non-magnetic material advances to the pyrochlore flotation circuit. The floated pyrochlore concentrate is upgraded by leaching soluble species, dried, and sent to the converter that produces the ferro-niobium for the steel

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Characterisation and magnetic concentration of an iron

2019-1-1  After magnetic concentration, the mass and Fe recovery are greater than 40 wt% and 64 wt%, respectively, for a magnetic field of 5465 Gauss. An increase of 20 wt% in Fe and decrease of 35 wt% in SiO 2 is seen in the obtained concentrates when compared with the magnetic concentration feed, which is deemed satisfactory for rougher operation.

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Characterisation and Pre-concentration of Chromite

2013-12-24  from the Karagedik Concentrate tailings a circuit comprising of wet high intensity magnetic separator and column flotation for producing a concentrate assaying 46

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Department of Materials Science and Metallurgical

2016-6-24  of gangue minerals to the tailings fraction increases which in turn improves the grade of the concentration fraction. (Tripathy, S.K., 2010). Higher grade of the concentrate fraction is obtained at higher level of both deck tilt angle and feed ow rate. With a

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(PDF) Leaching Titaniferous Magnetite Concentrate by

After NaOH leaching and magnetic separation, the concentrate, with Fe purity of 65.98% and Fe recovery of 82.46%, and the tailings, with TiO 2 purity of 32.09% and TiO 2 recovery of 80.79%, were

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Recovery of Manganese Ore Tailings by High-Gradient

2017-8-16  With the depletion of high-grade manganese ores, Mn ore tailings are considered valuable secondary resources. In this study, a process combining high-gradient magnetic separation (HGMS) with hydrometallurgical methods is proposed to recycle fine-grained Mn tailings. The Mn tailings were treated by HGMS at 12,500 G to obtain a Mn concentrate of 30% Mn with the recovery efficiency of 64%. The

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(PDF) Characterisation and magnetic concentration of an

Characterisation and magnetic concentration of an iron ore tailings. August 2018. Journal of Materials Research and Technology 8 (1) DOI: 10.1016/j.jmrt.2018.07.015. Authors: Pedro Domingos Dauce

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Extraction of Sc from Sc-Bearing V–Ti Magnetite Tailings

2021-4-21  In this study, a magnetic separation–shaking table gravity separation process was used to treat Sc-bearing V–Ti magnetite tailings, and the Sc2O3 content in the Sc concentrate was enhanced from 0.0039 to 0.0061%. The majority of the Sc in the Sc concentrate originates from augite, hornblende, and aluminosilicate. Magnesium chloride and the Sc concentrate were placed in a roasting furnace

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Tailings and concentrate dewatering after wet selection of

2021-10-19  Tailings and concentrate dewatering after wet selection of magnetite. September.11,2019. The wet selection of magnetite tailings. After the wet selection of magnetite, it is divided into tailings and concentrates. The output of tailings is determined according to the ore grade, concentrate

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Recovery of iron from hazardous tailings using fluidized

2020-2-1  Moreover, a high-quality iron concentrate assaying 65.91% Fe with a recovery rate of 94.60% was obtained under the following optimum parameters: gas flow rate of 500 mL/min, CO concentration of 25%, roasting time of 2.5 min, roasting temperature of 600 °C, grinding fineness of approximately 90 wt% passing 23 μm, and magnetic intensity of 104

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Production of a Phosphate Concentrate from the Tailings

The magnetic material (mainly magnetite (Fe 3 O 4)) is sent to the tailings ponds as the third reject stream, while the non-magnetic material advances to the pyrochlore flotation circuit. The floated pyrochlore concentrate is upgraded by leaching soluble species, dried, and sent to the converter that produces the ferro-niobium for the steel

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Upgrading the Fe Grade of Magnetite Concentrate Using

2021-7-26  The impact of high magnetic intensity on the Fe grade of the final concentration was investigated by operating the magnetic hydro- sizer with varying intensities from 1400 Gauss to 1460 Gauss . The feed PSD were kept constant at 80% passing 180µm and the water injection flow rate at 290m³/hr. Samples collected from the concentrate were analyzed

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Magnetite Concentration Methods

2018-2-6  At Langgrufvan, Sweden, a magnetic-concentration mill employing the Froeding separator has been in operation on magnetite ores since 1905. A Morgardshammer separator has recently been added to this plant. At Vintjarn, Sweden, a magnetic-concentration

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Recovery of Rutile Titanium Dioxide

2017-7-2  Since gravity concentration and magnetic separation did not produce a low-grade concentrate at a high-TiO2 recovery level, the major thrust of this investigation was directed toward flotation. Flotation. A basic method of flotation was devised, drawing

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Application Of Superconducting High Gradient Magnetic

2017-5-3  ABSTRACT. Comprehensive utilization of tailings resources not only solves environmental problems but also creates huge economic benefits. In this paper, fine weakly magnetic particles were extracted from iron ore beneficiation tailings and silica (SiO 2) was separated and purified using a superconducting high gradient magnetic

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Performance of a full-scale continuous centrifugal

The study aimed to evaluate the separation performance of a full-scale continuous centrifugal concentrator in the reconcentration of fine hematite from high-gradient magnetic separation (HGMS) concentrate in a tailings recovery plant, and to investigate the usefulness of the technology in industrial applications. The effect of changing the operating variables on concentrate grade and recovery

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Extraction of Sc from Sc-Bearing V–Ti Magnetite Tailings

2021-4-21  In this study, a magnetic separation–shaking table gravity separation process was used to treat Sc-bearing V–Ti magnetite tailings, and the Sc2O3 content in the Sc concentrate was enhanced from 0.0039 to 0.0061%. The majority of the Sc in the Sc concentrate originates from augite, hornblende, and aluminosilicate. Magnesium chloride and the Sc concentrate were placed in a roasting furnace

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Upgrading the Fe Grade of Magnetite Concentrate Using

2021-7-26  The impact of high magnetic intensity on the Fe grade of the final concentration was investigated by operating the magnetic hydro- sizer with varying intensities from 1400 Gauss to 1460 Gauss . The feed PSD were kept constant at 80% passing 180µm and the water injection flow rate at 290m³/hr. Samples collected from the concentrate were analyzed

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Production of a Phosphate Concentrate from the Tailings

The magnetic material (mainly magnetite (Fe 3 O 4)) is sent to the tailings ponds as the third reject stream, while the non-magnetic material advances to the pyrochlore flotation circuit. The floated pyrochlore concentrate is upgraded by leaching soluble species, dried, and sent to the converter that produces the ferro-niobium for the steel

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(PDF) Gravimetric concentration of fine chromite tailings

Therefore remarkably high value of fine chromite in tailings has been reported by many researchers [4][5][6][7] and slime shaking tables have been used in some concentrators for scavenging

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PULSATING HIGH GRADIENT MAGNETIC SEPARATION

2016-12-27  frequency and background magnetic induction in the separator were adjustable in the ranges of 1.0 to 3.0 mm, 0 to 100 rpm and 0.9 to 1.5 T, respectively. When a batch of feed was finished in the separator, a concentrate (non-magnetic product) and a tailings (magnetic

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Characterisation and Pre-concentration of Chromite

2013-12-24  Presently the COB plant produces 50 tph of tailings analysing 17% Cr2O3, which is high [9]. This suggested for the incorporation of additional circuit comprising of hydro cyclone for pre-concentration by de-sliming and multigravity separator and wet high intensity magnetic separator for the upgradation up to the required quality.

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A discussion of magnetic separation techniques for

2009-8-26  gravity concentration, and followed by conventional dry separation techniques to create the higher value zircon and rutile products. In Figure 2b, the wet process consists exclusively of gravity concentration followed by a dry plant for fractionating the HMC into various products. In some instances, where high levels of magnetic contaminants exist

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Recovery of Rutile Titanium Dioxide

2017-7-2  Since gravity concentration and magnetic separation did not produce a low-grade concentrate at a high-TiO2 recovery level, the major thrust of this investigation was directed toward flotation. Flotation. A basic method of flotation was devised, drawing

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