Науковий вісник НГУ

Processing of rare earth ore of weathering crust

• 
• 

User Rating:  / 0

PoorBest 

Details

Category: Content №3 2024

Last Updated on 28 June 2024

Published on 30 November -0001

Hits: 2492

Authors:

M.R.Shautenov, orcid.org/0000-0002-0266-3882, Satbayev University, Almaty, Republic of Kazakhstan,  e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Begalinov, orcid.org/0000-0002-4793-6207, Satbayev University, Almaty, Republic of Kazakhstan,  e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

N.T.Akkazina*, orcid.org/0000-0002-9042-6130, Satbayev University, Almaty, Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2024, (3): 035 - 041

https://doi.org/10.33271/nvngu/2024-3/035

Abstract:

Rapid development of high-tech industries is due to the rare and rare-earth metals used in instrumentation and radio electronics. Their materials are used primarily in the military-industrial and aerospace industries and are of strategic importance for the state.

Purpose. To develop a technology of enrichment of difficult-to-enrich rare-earth ore of weathering crust on the basis of combined gravity and flotation enrichment scheme.

Methodology. Studies on processing of this mineral raw material were carried out on the basis of gravity-flotation enrichment with obtaining rare-earth concentrate. The enrichment studies were carried out on a selected sample of ore from the deposit. On the basis of sieve and sedimentation analyses, the distribution of the sum of rare-earth elements (REE) in ore size classes and enrichment products was studied. Gravity enrichability of ore was determined by fractional analysis.

Findings. A method of gravity enrichment using the developed gravity apparatus and flotation enrichment of sand and clay fraction of the studied ore has been developed. Gravity enrichment produced a concentrate containing 1,053.76 g/t of rare-earth elements (REE), flotation enrichment of the clay fraction of the ore produced a concentrate containing 590.0 g/t of rare-earth elements (REE).

Originality. The developed ultrasonic aerohydrodeslimator was used for ore desliming. The gravitational technology for processing hard-to-enrich rare-earth ore of weathering crust with the use of vibrocentrifugal frequency apparatus, which allows intensifying the extraction of fine ore particles, is developed. Rare earth ore of size class -0.045 + 0 mm (clay fraction) and class -2.5 + 0.045 mm (sand fraction) was subjected to flotation beneficiation.

Practical value. The results of the research can be used in technological processes of processing of stubborn difficult-to-enrich rare-earth and other ores of weathering crust.

Keywords: rare-earth ore, size class, gravity-flotation enrichment, concentrate, enrichment waste

References.

1. Omirserikov, M., Dyussembayeva, K., Isayeva, L., Kembayev, M., & Assubayeva, S. (2015). Forms of occurrence of rare earth elements in the weathering crust of Kundybay deposit (North Kazakhstan). International Multidisciplinary Scientific Geo Conference Surveying Geolo­gy and Mining Ecology Management, SGEM, (p.159-166). Retrieved from https://www.scopus.com/record/display.uri?eid=2-s2.0-84958124731&origin=resultslist#metrics.

2. E²nergy (2019). Four metals on which renewable energy depends. Retrieved from https://eenergy.media/news/8876.

3. Mingaleeva, R. D. (2023). Reserves and extraction of rare earth metals and elements as a key factor in the renewable energy sector development at the the world economy transformation current stage. Vestnik universiteta, (5), 37-45. https://doi.org/10.26425/1816-4277-2023-5-37-45.

4. USGS (2023). Rare Earths Statistics and Information. Retrieved from https://www.usgs.gov/centers/national-minerals-information-center/rare-earths-statistics-and-information.

5. Yushina, T. I., Petrov, I. M., Grishaev, S. I., & Cherny, S. A. (2015). World market and technologies for processing rare earth metals: current state and prospects. Mining Journal, (2), 59-64.

6. Cheng, S. K., Li, W. B., Han, Y. X., Sun, Y. S., Gao, P., & Zhang, X. L. (2023). Recent process developments in beneficiation and metallurgy of rare earths: A review. Journal of Rare Earths, 629-642. https://doi.org/10.1016/j.jre.2023.03.017.

7. McNulty, T., Hazen, N., & Park, S. (2022). Processing the ores of rare-earth elements. MRS Bulletin, 47, 258-266. https://doi.org/10.1557/s43577-022-00288-4.

8. Lan, X., Gao, J., Du, Y., & Guo, Z. (2018). Mineral evolution and separation of rare-earth phases from Bayan Obo rare-earth concentrate in a super-gravity field. Journal of Alloys and Compounds, 731, 873-880. https://doi.org/10.1016/j.jallcom.2017.10.100.

9. Jordens, A., Cheng, Y. P., & Waters, K. E. (2013). A review of the beneficiation of rare earth element bearing minerals. Minerals Engineering, 41, 97-114. https://doi.org/10.1016/j.mineng.2012.10.017.

10. Jordens, A., Sheridan, R. S., Rowson, N. A., & Waters, K. E. (2014). Processing a rare earth mineral deposit using gravity and magnetic separation. Minerals Engineering, 62, 9-18. https://doi.org/10.1016/j.mineng.2013.09.011.

11. Abaka-Wood, G. B., Zanin, M., Addai-Mensah, J., & Skinner, W. (2018). The upgrading of rare earth oxides from iron-oxide silicate rich tailings: Flotation performance using sodium oleate and hydroxamic acid as collectors. Advanced Powder Technology, 29(12), 3163-3172. https://doi.org/10.1016/j.apt.2018.08.019.

12. Bayysbekov, Sh., Shautenov, M. R., Peregudov, V. V., Bozhko, A. N., Sazhin, Yu. G., & Akkazina, N. T. (2012). Centrifugal hydraulic concentrator. (Patent 25645 the Republic of Kazakhstan). Retrieved from https://kzpatents.com/6-ip25645-centrobezhnyjj-gidrokoncentrator.html.

13. Shautenov, M. R., Telkov, Sh. A., Begalinov, A. B., Motovilov, I. Yu., & Akkazina, N. T. (2013). Granulometric composition and distribution of rare earth elements in weathering crust ore. Mining Journal of Kazakhstan, (1-2), 88-93.

14. Peregudov, V. V., Shautenov, M. R., Ozhogin, G. A., & Motovilov, I. Yu. (2015). Vibrocentrifugal bowl apparatus of periodic action. (Innovative patent of the Republic of Kazakhstan No. 30418). NIIS. Retrieved from https://kzpatents.com/9-ip30418-vibrocentrobezhnyjj-chashevyjj-apparat-periodicheskogo-dejjstviya.html.

• < Prev
• Next >