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Acquisition of Rare Earth Elements by Application of Hydrometallurgical Methods

Year 2021, Volume: 7 Issue: 2, 288 - 304, 20.07.2021

Mehmet Kayra Tanaydın

https://doi.org/10.29132/ijpas.908824
Cited By: 1

Abstract

The demand for rare earth elements in the world is increasing rapidly, but the supply amounts of these elements are decreasing due to export quotas imposed by the Chinese government and illegal mining operations. Many countries have accelerated their efforts to obtain rare earth elements from primary and secondary sources in order to meet their future needs by taking measures. Rare earth elements are the most important components necessary both for the design and development of high-tech products that we use in our daily lives and for the advancement of modern industry. These elements, which have become indispensable materials of our lives, are generally not found in pure form in nature, but in complex structures in ores. Rare earth elements have close to 250 known minerals, but ores such as bastnasite, monazite and xenotime are commercially exploited. It is usually physically enriched by flotation, gravity, electrostatic or magnetic separation processes to obtain bastnasite, monazite and xenotime concentrates. In order to develop viable and environmentally friendly processes, studies are carried out for the extraction of rare earth elements from leaching solutions (chloride, nitrate, sulfate, thiocyanate, etc.) and the use of different cationic, anionic and neutral extractants depending on the solution medium. Commercial extraction of rare earth elements D2EHPA, Cyanex 272, PC-88A, Versatic 10, TBP, Aliquat 336 etc. carried out using different extractants. In this work, hydrometallurgical methods used for the recovery of rare earth elements from primary sources are examined. These methods are hydrometallurgical methods consisting of leaching with acids and alkalis followed by processes such as solvent extraction, ion exchange or precipitation and reduction. With the application of hydrometallurgical processes, processes that may be beneficial for the recovery of rare earth elements under various conditions have been evaluated.

Keywords

Hydrometallurgy leaching solvent extraction rare earth elements

References

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Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması

Year 2021, Volume: 7 Issue: 2, 288 - 304, 20.07.2021

Mehmet Kayra Tanaydın

https://doi.org/10.29132/ijpas.908824
Cited By: 1

Abstract

Dünya’da nadir toprak elementlerine olan talep hızla artmakta, buna karşın Çin hükümetinin dayattığı ihracat kotaları ve yasadışı madencilik operasyonları nedeniyle bu elementlerin arz miktarları azalmaktadır. Birçok ülke önlemler alarak gelecekteki ihtiyaçlarını karşılamak için nadir toprak elementlerini birincil ve ikincil kaynaklardan kazanmaya yönelik çalışmalarını hızlandırmıştır. Nadir toprak elementleri, hem günlük yaşantımızda kullandığımız yüksek teknoloji ürünlerinin tasarlanması ve geliştirilmesi hem de modern endüstrinin ilerlemesi için gerekli olan en önemli bileşenlerdir. Hayatımızın vazgeçilmez malzemeleri haline gelen bu elementler doğada genellikle saf halde değil, cevherlerde kompleks yapıda bulunurlar. Nadir toprak elementleri 250’ye yakın bilenen minerale sahiptir ancak bunlardan bastnazit, monazit ve ksenotim gibi cevherler ticari olarak işletilmektedir. Bastnazit, monazit ve ksenotim konsantreleri elde etmek için genellikle flotasyon, gravite, elektrostatik veya manyetik ayırma işlemleri ile fiziksel olarak zenginleştirilirler. Uygulanabilir ve çevre dostu prosesler geliştirmek için, nadir toprak elementlerinin liç çözeltilerinden (klorür, nitrat, sülfat, tiyosiyanat, vb. ortamlarda) ekstraksiyonu, çözelti ortamına bağlı olarak farklı katyonik, anyonik ve nötr ekstraktantların kullanılmasına yönelik çalışmalar yürütülmektedir. Nadir toprak elementlerinin ticari ekstraksiyonu D2EHPA, Cyanex 272, PC-88A, Versatic 10, TBP, Aliquat 336 vb. farklı ekstraktantlar kullanılarak gerçekleştirilmektedir. Bu makalede, nadir toprak elementlerinin birincil kaynaklardan kazanılması için kullanılan hidrometalurjik yöntemler incelenmiştir. Bu yöntemler, asitler ve alkaliler ile liç ve ardından solvent ekstraksiyonu, iyon değişimi veya çöktürme ve indirgenme gibi proseslerden oluşan hidrometalurjik yöntemlerdir. Hidrometalurjik proseslerin uygulanmasıyla çeşitli şartlar altında nadir toprak elementlerinin kazanımı için yararlı olabilecek prosesler değerlendirilmiştir.

Keywords

Hidrometalurji liç solvent ekstraksiyonu nadir toprak elementleri

References

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  • Arslan Topal, E. I., & Elitok, Z. (2018). Seasonal Monitoring of Cu and Zn in the Sewage Sludge of Malatya Advanced Biological Wastewater Treatment Plant. International Journal of Pure and Applied Sciences, 4(1), 51–60. https://doi.org/10.29132/ijpas.365425
  • Atanassova, M. (2006). Solvent extraction and separation of lanthanoids with mixtures of chelating extractant and 1-(2-pyridylazo)-2-naphthol. Separation and Purification Technology, 49(1), 101–105. https://doi.org/10.1016/j.seppur.2005.09.001
  • Atanassova, M., Kurteva, V., Lubenov, L., & Billard, I. (2016). Solvent extraction and separation of light lanthanoids with mixtures of two chelating extractants: Benzene vs. ionic liquid. Separation Science and Technology, 51(2), 290–299. https://doi.org/10.1080/01496395.2015.1088028 Awwad, N. S., Gad, H. M. H., & Aly, H. F. (2008). Extraction of Eu(III) from nitrate medium by CYANEX921 using solvent extraction technique. International Journal of Physical Sciences, 3(1), 22–27. Retrieved from http://www.academicjournals.org/IIJPS
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  • Balaram, V. (2019). Rare earth elements: A review of applications, occurrence, exploration, analysis, recycling, and environmental impact. Geoscience Frontiers, 10(4), 1285–1303. https://doi.org/10.1016/j.gsf.2018.12.005
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Primary Language Turkish
Subjects Engineering
Journal Section Articles
Authors

Mehmet Kayra Tanaydın 0000-0003-1696-0754

Publication Date July 20, 2021
Submission Date April 3, 2021
Acceptance Date June 24, 2021
Published in Issue Year 2021 Volume: 7 Issue: 2

Cite

APA Tanaydın, M. K. (2021). Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması. International Journal of Pure and Applied Sciences, 7(2), 288-304. https://doi.org/10.29132/ijpas.908824
AMA Tanaydın MK. Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması. International Journal of Pure and Applied Sciences. July 2021;7(2):288-304. doi:10.29132/ijpas.908824
Chicago Tanaydın, Mehmet Kayra. “Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması”. International Journal of Pure and Applied Sciences 7, no. 2 (July 2021): 288-304. https://doi.org/10.29132/ijpas.908824.
EndNote Tanaydın MK (July 1, 2021) Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması. International Journal of Pure and Applied Sciences 7 2 288–304.
IEEE M. K. Tanaydın, “Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması”, International Journal of Pure and Applied Sciences, vol. 7, no. 2, pp. 288–304, 2021, doi: 10.29132/ijpas.908824.
ISNAD Tanaydın, Mehmet Kayra. “Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması”. International Journal of Pure and Applied Sciences 7/2 (July 2021), 288-304. https://doi.org/10.29132/ijpas.908824.
JAMA Tanaydın MK. Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması. International Journal of Pure and Applied Sciences. 2021;7:288–304.
MLA Tanaydın, Mehmet Kayra. “Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması”. International Journal of Pure and Applied Sciences, vol. 7, no. 2, 2021, pp. 288-04, doi:10.29132/ijpas.908824.
Vancouver Tanaydın MK. Hidrometalurjik Yöntemlerle Nadir Toprak Elementlerinin Kazanılması. International Journal of Pure and Applied Sciences. 2021;7(2):288-304.

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Farklı Oranlarda Fe2O3 (Maghemit) Nanopartikülleri Kullanılarak Hazırlanan Poli Vinil Klorür Kompozitlerinin Manyetik Özelliklerinin İncelenmesi
International Journal of Pure and Applied Sciences
https://doi.org/10.29132/ijpas.993988
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