A Beneficiation Study on a Low Grade Iron Ore by Gravity and Magnetic Separation

Akbari, Hossein; Noaparast, Mohammad; Shafaei, Sied Ziaedin; Hajati, Abdolmotaleb; Aghazadeh, Sajjad; Akbari, Hassan

doi:10.3103/s1067821218040028

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…Some methods can be implemented in upgrading the iron value, such as magnetic separation, gravity concentration, reduction roasting, and a combination of these. However, the selection of proper beneficiation strategies depends on the mineralogical properties of the ore, including magnetic mineral, grade, texture, and impurities [27], [28], [29], [30].…”

Section: F the Implication For Iron Ore Beneficiationmentioning

confidence: 99%

The Latowu Ultramafic Rock-Hosted Iron Mineralization in the Southeastern Arm Sulawesi, Indonesia: Characteristics, Origin, and Implication for Beneficiation

Sufriadin¹,

Widodo²,

Thamrin³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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Latowu ultramafic block in the Southeastern Arm Sulawesi locally hosts elevated concentrations of Fe in addition to Ni. We investigated both host rock and mineralized samples' mineralogy and chemistry to find out mineralogical and chemical characteristics and interpret the iron mineralization process with beneficiation implications. The mineralogical nature of the samples was analyzed using optical microscopy and X-ray diffractometry (XRD) methods. The whole-rock and mineral chemistry analyses were performed using X-ray fluorescence (XRF) spectroscopy and electron probe microanalysis (EPMA) techniques. The analysis showed that the ultramafic rocks had been undergone a strong to complete serpentinization degree where lizardite appears to be the predominant mineral. Magnetite in this research comprised the principal iron-bearing mineral and functioned as discrete fine-grains and subhedral to anhedral crystals. Magnetite occurs as fragments in breccia, alteration rim in spinel, fine-grained disseminations, and micro veins. This research found that the whole-rock chemistry of an ultramafic breccia showed an elevated concentration in Fe2O3 with a grade of 28.44 wt%. Electron probe analysis of magnetite shows a wide variation of Fe ranging from 31.10 wt% to 67.20 wt%. It is interpreted that the formation of magnetite within ultramafic rocks is influenced by the hydration of primary minerals, mainly olivine. Iron is most likely released from olivine or pyroxene crystals during serpentinization, and the higher water content of serpentine promotes its mobility. It is suggested that the magnetic separation method can be potentially used to increase the Fe grade.

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Section: F the Implication For Iron Ore Beneficiationmentioning

confidence: 99%

The Latowu Ultramafic Rock-Hosted Iron Mineralization in the Southeastern Arm Sulawesi, Indonesia: Characteristics, Origin, and Implication for Beneficiation

Sufriadin¹,

Widodo²,

Thamrin³

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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“…However, despite their undeniable economic importance, environmental protection imposes constraints on their widespread use. In this context, several researchers have explored the possibility of recovering iron from lowgrade iron ores using techniques such as flotation, reverse anionic flotation of quartz, and magnetic separation [4,5], gravity separation [6], froth flotation [7,8], or a combination of these methods [9][10][11]. This physical approach helps limit chemical interactions and justifies itself as an attractive alternative to newer treatment techniques.…”

Section: Introductionmentioning

confidence: 99%

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Chaib,

Bouabdallah,

Ferfar

et al. 2024

TAPR

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The establishment of a new metallurgical complex in Bellara, located in El-Milia in the Jijel region, is geographically advantageous due to its proximity to the Sidi Maarouf deposit (Algeria). This proximity has been a fundamental motivation for the completion of the current study. The object of research is the quality of iron products from Sidi Maarouf. The research is aimed at developing a treatment process aimed at improving the quality of iron products from Sidi Maarouf, while reducing the impurities of quartz and clay present in this ore. This approach will be based on an approved technological treatment scheme, implemented through an experimental approach to ensure reliable results that meet the requirements of the steel industry. The problem issue revolves around the difficulties encountered in the production of steels due to the natural characteristics of the raw material. In the absence of a physico-chemical characterization of the Sidi Maarouf iron ore deposit, samples taken undergo a series of thorough analyses, including microscopic examinations, X-ray diffraction (XRD), as well as additional chemical analyses using X-ray fluorescence (XRF). The identified minerals are predominantly composed of hematite in terms of iron. As for the gangue, it is mainly composed of calcite and quartz. Through to the pre-treatment process involving washing, we have successfully removed lightweight particles, resulting in a concentrate containing dense particles. This approach was crucial in achieving satisfactory results during the high-intensity dry magnetic separation. As a result of the research it is shown that the enrichment of the Sidi Maarouf iron ore through high-intensity dry magnetic separation, a final concentrate was obtained with a Fe2O3 content exceeding 67 %, along with a significant reduction in silica impurities to 0.92 % and alumina to 0.77 %. It was concluded that this concentrate, derived from the -1+0.5 mm fraction and obtained under a current intensity of 12 A, meets the requirements of the steel industry. Following the work carried out, it is found that the methods of valorization of iron ore through mineralogical processes consistently require a high level of efficiency and performance in terms of equipment and characterization of the products obtained. In the future, iron ore processing will be conducted using innovative methods, integrating advanced technologies to enhance its characteristics while adopting environmentally friendly practices.

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“…Gravity separation is widely used in mineral beneficiation practices for its low-cost, ease of operation and control, and eco-friendly nature (Seifelnassr et al, 2012;Akbari et al, 2018;He et al, 2019). Conventional gravity separation methods (e.g., jigging, spirals and shaking tables) find wide application in the processing of iron ores, but their major limitation is the treatment of fine size particles.…”

Section: Introductionmentioning

confidence: 99%

“…Three different feed sizes of -150, -106 and -75 mm were tested and the results are presented in Table3. The recovery decreased from 67.45 to 56.01 % with decreasing particle size from -150 to -75 mm, the concentration investigations of iron ores by various methods Akbari et al (2018). compared beneficiation methods of iron ores (mostly hematite) and found that spiral separation yielded higher separation efficiency than other methods, including magnetic separation.…”

mentioning

confidence: 99%

Düşük Tenörlü Manyeti̇t Cevheri̇ni̇n Manyeti̇k Ayirma Ve Yerçeki̇mi̇ İle Zengi̇nleşti̇ri̇lmesi̇: Tane Boyu Etki̇si̇

Sis¹,

Karaağaç²,

Birinci³

et al. 2021

Bilimsel Madencilik Dergisi

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This study compares the efficiency of different methods in beneficiation of iron ore from Doğanşehir (Malatya) region. It is a low-grade ore containing 27.43 % Fe which requires concentration to meet the specifications of blast furnace feeds. The main mineral composition of ore is magnetite and also contains magnesioferrite, ferro-actinolite and calcite minerals. The collected samples were classified into different size fractions after size reduction and then subjected to different gravimetric and magnetic separation methods for concentration. The results showed that particle sizes affected the concentrations to a large extent and generally cleaner concentrates were obtained at finer sizes for a certain separation method. On the other hand, wet magnetic separation yielded comparably better results than gravimetric methods. A concentrate assaying 65.66 % Fe and 0.38 % K 2 O+Na 2 O was obtained with 78.11 % recovery by wet magnetic separation. It was concluded that concentrates meeting blast furnace specifications could be obtained from this low-grade iron ore. It was also concluded that the proposed separation flow sheet can be applied to similar lowgrade iron ores in the region. ÖZBu çalişmada Doğanşehir (Malatya) bölgesinden elde edilen demir cevherlerinin farklı yöntemlerle zenginleştirilmesini araştırmaktadır. Düşük tenörlü cevher % 27,43 Fe tenörüne sahip olup yüksek fırın beslemesi özelliklerini sağlaması için zenginleştirilmesi gerekir. Cevher içerisinde başlıca manyetit, ferro-aktinolit ve magneziyoferrit bulunmaktadır. Boyut küçültmeden sonra cevher farklı tane boylarına sınıflandırılmış ve sonra değişik yerçekimi ve manyetik ayırma testleri uygulanmıştır. Sonuçlar tane boyunun zenginleştirme sonuçlarını çok etkilediğini ancak manyetik ayırma testlerinin yerçekimi zenginleştirme testlerinden daha iyi sonuçlar verdiğini göstermiştir. Yaş manyetik ayırma yöntemi ile % 65,66 Fe ve % 0,38 K2O+Na2O içeren konsantre % 78,11 verimle elde edilmiştir. Sonuçlar düşük tenörlü cevherden yüksek fırın besleme şartlarını sağlayan konsantre elde edilebileceğini göstermiştir. Sonuçlardan önerilen zenginleştirme akış şemasının bölgedeki benzer cevherlere uygulanabileceği anlaşılmıştır.

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A Beneficiation Study on a Low Grade Iron Ore by Gravity and Magnetic Separation

Cited by 9 publications

References 21 publications

The Latowu Ultramafic Rock-Hosted Iron Mineralization in the Southeastern Arm Sulawesi, Indonesia: Characteristics, Origin, and Implication for Beneficiation

The Latowu Ultramafic Rock-Hosted Iron Mineralization in the Southeastern Arm Sulawesi, Indonesia: Characteristics, Origin, and Implication for Beneficiation

Investigation of physicochemical characterization and magnetic enrichment of iron ore from Sidi Maarouf deposit

Düşük Tenörlü Manyeti̇t Cevheri̇ni̇n Manyeti̇k Ayirma Ve Yerçeki̇mi̇ İle Zengi̇nleşti̇ri̇lmesi̇: Tane Boyu Etki̇si̇

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