Iron removal from Banjarnegara feldspar by dry high-intensity magnetic separation

Subari,; Erlangga, Bagus Dinda; Daryanto, .

doi:10.1063/5.0072106

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…A magnetic separation technique is required for feldspar purification since non-magnetic feldspar accompanies some worthless magnetic minerals such as rutile, hematite, pyrite, tourmaline, and white mica [22][23][24][25]. in general, the gangue minerals in feldspar appear to have weak magnetic characteristics; just using a high-intensity magnetic separator can get a good result [23,26]. Most often, ferromagnetic materials such as magnetite are separated using dry or wet low-intensity magnetic separators, while paramagnetic minerals such as hematite are separated using high-intensity magnetic separators [27,28].…”

Section: Introductionmentioning

confidence: 99%

Removing Iron Impurities from Feldspar Ore Using Dry Magnetic Separation (Part One)

2023

Archives of Mining Sciences

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Removing iRon impuRities fRom feldspaR oRe using dRy magnetic sepaRation (paRt one)feldspar is a basic requirement for glass, ceramics, and other industries. The presence of iron in feldspar is one of the challenging aspects of feldspar processing. To improve the quality of feldspar for use in various industries, dry magnetic separation is one of the best techniques for reducing iron in feldspar, especially in arid regions to overcome the common problem of lack of water resources as well as to reduce the operational cost of the enrichment process. Therefore, dry magnetic separation experiments were carried out to remove the iron content from feldspar ore in the Wadi umm harjal area in Egypt to meet the specifications required for different industries. The sample was analysed using Xrd, Xrf, and optical microscopy, which revealed that it is a mixture of potassium feldspar (microcline/orthoclase), albite, and quartz in the presence of hematite mineral serving as the main iron impurities in addition to the free silica content. The effect of parameters on the activity of the dry high magnetic separators was investigated in addition to cleaning the products. The iron oxide reduced from 0.69% in the head sample to 0.08% after dry high-intensity magnetic separation, and the whiteness increased from 82.01% in the head sample to 95.97% in the separated concentrate. The experimental results showed that there is a possibility to obtain feldspar concentrates with low content of fe 2 o 3 from the area where according to the results, approximately 88.4% of iron was removed from the head sample.

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Section: Introductionmentioning

confidence: 99%

Removing Iron Impurities from Feldspar Ore Using Dry Magnetic Separation (Part One)

2023

Archives of Mining Sciences

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“…The raw materials have been obtained from minerals on Earth and by processing some ceramic residues [1]. Some research on ceramic bodies has also been done with variations ingredients such as feldspar [2], [3], volcanic ash [4], kaolin [5] and local clay [6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Buleleng clay and improvement of its ceramic properties

Sundari¹,

Subari²,

Erlangga³

2022

Min. miner. depos.

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Purpose. The research focuses on the improvement of local clay-based ceramic pottery bodies from Alas Angker in Buleleng Regency in Bali. The main purpose is to utilize the clay which meets the standards of ceramics such as smooth and hard earthenware, especially to reduce its water absorption property. Methods. Firstly, the clay is analyzed for its physical and chemical composition. Two ceramic body formulations are made using the clay with the BWNAA1 and BWNAA2 codes. The specimens are measured in terms of clay ceramics properties including plasticity, dry shrinkage, firing shrinkage and water absorption. The cracked ceramic products are also analyzed for a comparison. Findings. The ceramic properties show similar results, except for the water absorption percentage. The BWNAA2 code formulation has lower water absorption rate by 10.8% and meets the requirements for the type of smooth and hard earthenware body in compliance with the national standard SNI:7275-2018. The water absorption rate is about half of the existing products, which is effective in avoiding the problem of cracks. Originality. Comparison of the existing ceramic products and specimens made in this study shows a significant difference in water absorption and crack growth. Adding a certain amount of kaolin, feldspar, ball clay and quartz sand has significantly reduced the water absorption rate of ceramic bodies. Practical implications. This research can be a potential solution to increase the quality of ceramic pottery products in the vicinity of Buleleng Regency which use the clay of this kind.

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Removal of iron contents from Banjarnegara serpentine by leaching process for ceramic purposes

Subari,

Erlangga,

Arifin

et al. 2024

AIP Conference Proceedings

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Iron removal from Banjarnegara feldspar by dry high-intensity magnetic separation

Cited by 3 publications

References 10 publications

Removing Iron Impurities from Feldspar Ore Using Dry Magnetic Separation (Part One)

Removing Iron Impurities from Feldspar Ore Using Dry Magnetic Separation (Part One)

Characterization of Buleleng clay and improvement of its ceramic properties

Removal of iron contents from Banjarnegara serpentine by leaching process for ceramic purposes

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