Monazite Recovery by Magnetic and Gravity Separation of Medium Grade Zircon Concentrate from Senegalese Heavy Mineral Sands Deposit

Dieye, Moumar; Thiam, Mohamadou Moustapha; Geneyton, Anthony; Gueye, Mamadou

doi:10.4236/jmmce.2021.96038

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…These size ranges were selected so as to work with optimum liberation size as established by [9] [11]. About 30 g of each size distribution was measured into a carefully agitated to achieve complete mixture [12]. Thereafter, 60 ml of water was added to the mixture and further agitated to achieve homogenous mixture.…”

Section: Methodsmentioning

confidence: 99%

Effectiveness of Gravity Separation of Low Grade Nigerian Gold Ore Using Shaking Table

Teniola¹,

Adeleke²,

Ibitoye³

et al. 2022

IJNM

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The response of Imogbara (Nigeria) gold ore to shaking tabling gravity separation methods was investigated in this research work. Gold concentration in run-off mines is usually as low as 0.005 ppm and must be upgraded in order to reduce the recovery process extraction costs. Gravity separation method (the focus of this work) is one of the readily affordable beneficiation methods. Shaking table is a developed separation equipment of gravity method that has been adopted to increase concentrate based on difference of specific gravity. The output result of the concentration process using shaking table is basically influenced by a number of variables, such as rotational shaking speed, particle size and deck slope. In this research, the range of rotational speed shaking was between 100 rpm and 200 rpm, the particle size was between (−300 µm > X < +75 µm) and (−75 µm) and deck slope was between 10˚ and 30˚. EDXRF was used to measure gold concentration in the concentrate as well as the tailings. The result shows that the optimum condition is obtained at a shaking speed of 100 rpm, with a slope of 10˚ and particle size less than 75 µm.

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Section: Methodsmentioning

confidence: 99%

Effectiveness of Gravity Separation of Low Grade Nigerian Gold Ore Using Shaking Table

Teniola¹,

Adeleke²,

Ibitoye³

et al. 2022

IJNM

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“…Asnani et al [26] studied the recovery of monazite from red sediments of badlands topography of the southeast coast of India and its characterization for industrial applications and found that 67% recovery was achieved by using a series of dry magnetic separators. Moumar et al [5] studied monazite recovery using magnetic and gravity separation of medium-grade zircon concentrate from a Senegalese heavy mineral sands deposit and concluded that a monazite grade containing 4.5% with 40% recovery could be possible by using a combination of gravity and magnetic separators. Since magnetic separation alone does not produce the desired grade of monazite, an attempt is made for flotation of the magnetic product.…”

Section: Dry Process Forrecovering Monazite Mineral Concentratementioning

confidence: 99%

“…The beneficiation processes for the recovery of total heavy minerals are specific, and dedicated flow sheets are adopted due to variations in mineral compositions. Processes for monazite beneficiation depend upon the nature and association of valuable strategic and critical industrial and gangue minerals present [2][3][4][5]. The common extraction processes adopted for recovering monazite include multi-stage cleaning using gravity, conductivity, magnetism, and flotation.…”

Section: Introductionmentioning

confidence: 99%

Development of Process Flow Sheet for Recovering Strategic Mineral Monazite from a Lean-Grade Bramhagiri Coastal Placer Deposit, Odisha, India

Singh,

Mishra,

Sharma

et al. 2024

Minerals

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The present investigation deals with the development of a process flow sheet for recovering strategic mineral monazite concentrate from a lean-grade offshore placer deposit of the Bramhagiri coast along the southeast coast of Odisha, India.In the present study, both dry and wet processes are investigated to improve the recovery and purity of monazite. The results of the pre-concentration studies reveal that by using multi-stage spiral concentrators, the Total Heavy Minerals [THM] have been upgraded to 97.8% with a monazite content of 0.33% from a feed sample containing 4.72% total heavy minerals and 0.01% monazite content. The beneficiation studies revealed that the feed was initially subjected to a high-tension separator, and the non-conducting fraction of the high-tension roll was further subjected to magnetic separation. The magnetic product was again subjected to a flotation process followed by cleaning of the flotation product using a magnetic separator. This magnetic product contains 98.89% monazite with 84% recovery and 0.28% yield from a spiral product containing 0.33% monazite and qualifies for extracting rare earths. It is worth recovering monazite mineral from even lean-grade deposits, as it is a source of uranium, thorium, and rare earth elements and is very high in demand for humankind due to technological advancements. In view of this, monazite recovery is not to be considered for the economic profitability of the process but for strategic requirements.

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“…The findings revealed the presence of not only ilmenite but also monazite, zircon, and silica in the product of heavy minerals. Moumar Dieye et al [21] separately used magnetic separation and gravity separation, to separate monazite from the rough zircon concentrate in Senegal. It was found that the recoveries of monazite were 94.8% and 76.6%, respectively, when magnetic separation and gravity separation were separately carried out.…”

Section: Introductionmentioning

confidence: 99%

Gravity Separation Tests of a Complex Rutile Ore

Wang,

Zheng,

Huang

et al. 2024

Minerals

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The complex rutile ore containing TiO2 and ZrO2 exhibited a high economical value. To effectively recover TiO2 and ZrO2 from the raw sample, a complete gravity separation process including a spiral chute and a shaking table was proposed. Chemical constituents, phase, liberation degree and size distribution were firstly characterized by XRF, chemical analyses, XRD, EPMA-EDS and screening to understand the mineralogy. Then, two stages of spiral chute separation tests were performed to treat the complex rutile ore. A rough zircon concentrate containing 33.18% ZrO2 was obtained after the first-stage spiral chute and a rough rutile concentrate containing 56.77% TiO2 was obtained after the second-stage spiral chute. To further improve the grade and recovery of ZrO2 and TiO2 in the rough products obtained by spiral chutes, shaking table tests were performed. A zircon concentrate containing 42.65% ZrO2 and a rutile concentrate containing 61.75% TiO2 were obtained. For the tailing of the first-stage spiral chute, a rutile product assaying 57.50% TiO2 was obtained, and the tailing was directly discarded as waste after the shaking table tests. Moreover, the distribution regularities of ZrO2 and TiO2 in the products were further revealed by XRD analyses. Finally, a closed-circuit beneficiation process was proposed to treat the complex rutile ore for achieving comprehensive and effective utilization.

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Monazite Recovery by Magnetic and Gravity Separation of Medium Grade Zircon Concentrate from Senegalese Heavy Mineral Sands Deposit

Cited by 7 publications

References 18 publications

Effectiveness of Gravity Separation of Low Grade Nigerian Gold Ore Using Shaking Table

Effectiveness of Gravity Separation of Low Grade Nigerian Gold Ore Using Shaking Table

Development of Process Flow Sheet for Recovering Strategic Mineral Monazite from a Lean-Grade Bramhagiri Coastal Placer Deposit, Odisha, India

Gravity Separation Tests of a Complex Rutile Ore

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