Vat Leaching and Box Leaching in Hydrometallurgy: Process Principles, Industrial Applications, and Future Perspectives

Vol 9 No 3 (2026): Volume 09 Issue 03 March 2026

Article Date Published : 27 March 2026 | Page No.: 1548-1577 | Google Scholar | Crossref doi for this article

Abstract :

Vat leaching and box leaching are proven percolation-based hydrometallurgical methods that provide a controlled alternative to traditional heap and tank leaching. Unlike heap leaching, which works under large-scale, low-control conditions, and tank leaching, which involves fine grinding and intensive agitation, vat and box leaching systems process crushed ores in confined reactors. This allows for better distribution of solutions, faster recovery rates, and a smaller environmental impact. These methods are widely used to extract gold, copper, uranium, and, more recently, rare earth elements from both primary ores and secondary resources. Their main benefits include greater control over leaching parameters (such as residence time, irrigation rate, and solution chemistry), reduced reagent losses, and improved handling of effluents and emissions. However, limitations such as low throughput, the need for prior crushing and sizing, potential channeling effects, and higher capital costs per unit capacity hinder wider adoption. This review explores the fundamental principles of fluid flow, mass transfer, and reaction kinetics in vat and box leaching systems, assesses their industrial use across different commodities, and discusses recent technological developments, including modular setups, hybrid flowsheets, and digital process monitoring. It also highlights key knowledge gaps related to scale-up, modeling multiphase flow in packed beds, and integrating sustainable resource recovery strategies, providing a guide for future research and industry implementation.

Keywords :

Vat leaching; Box leaching; Hydrometallurgy; Percolation leaching; Rare earth processing; Gold extraction

References :

  1. Abashina, T. N., Yachkula, A. A., & Vainshtein, M. B. (2022). Prevention of sulfuric acid pollution: Intensification of metal leaching with organic acids. IOP Conference Series: Earth and Environmental Science, 981, 032029. https://doi.org/10.1088/1755-1315/981/3/032029
  2. Abashina, T., & Vainshtein, M. (2023). Current trends in metal biomining with a focus on genomics aspects and attention to arsenopyrite leaching—A review. Microorganisms, 11(1), 186. https://doi.org/10.3390/microorganisms11010186
  3. Abdulsattr, S. M., Sayyid, F. F., & Al-Rubaiey, S. I. J. (2025). Advancements in copper recovery: A review of techniques for extracting copper by corrosion dezincificated brass waste. AIP Conference Proceedings, 3318(1), 050042. https://doi.org/10.1063/5.0286891
  4. Adilov, G., Suleimen, B. & Kosdauletov, N. Challenges and Opportunities in the Recycling of Copper Slags.  Sustain. Metall.11, 2064–2074 (2025). https://doi.org/10.1007/s40831-025-01137-9
  5. Ali, M. A. H., Mewafy, F. M., Qian, W., Alshehri, F., Almadani, S., Aldawsri, M., Aloufi, M., & Saleem, H. A. (2023). Mapping leachate pathways in aging mining tailings pond using electrical resistivity tomography. Minerals, 13(11), 1437. https://doi.org/10.3390/min13111437
  6. Anukiruthika, T., Yoha, K. S., Dutta, S., Moses, J. A., & Anandharamakrishnan, C. (2024). Unit operations in food processing. In C. Anandharamakrishnan (Ed.), Emerging technologies for the food industry (1st ed.). Apple Academic Press. https://doi.org/10.1201/9781003413592-4.
  7. Arpalahti, A. (2021). Heap leaching of nickel sulfide ore (Doctoral dissertation, Aalto University). Aalto University publication series DOCTORAL DISSERTATIONS, 115/2021. https://urn.fi/URN:ISBN:978-952-64-0490-5
  8. Aziman, E. S., Ismail, A. F., Rahmat, M. A., Rodzi, N. D., & Jamaludin, M. A. B. (2024). Column percolation leaching test for rare-earth processed residue: Standard laboratory column elution experiments towards development permanent disposal facility. Progress in Nuclear Energy, 171, 105172. https://doi.org/10.1016/j.pnucene.2024.105172
  9. Bárzaga-Martell, L., Diaz-Quezada, S., Estay, H., & Ruiz-del-Solar, J. (2025). Estimation of copper grade, acid consumption, and moisture content in heap leaching using extended and unscented Kalman filters. Minerals, 15(5), 521. https://doi.org/10.3390/min15050521
  10. Binnemans, K., & Jones, P. T. (2023). The twelve principles of circular hydrometallurgy. Journal of Sustainable Metallurgy, 9(1), 1–12. https://doi.org/10.1007/s40831-022-00602-7
  11. Binnemans, K., Jones, P.T. Lindy Effect in Hydrometallurgy.  Sustain. Metall.11, 2157–2174 (2025). https://doi.org/10.1007/s40831-025-01119-x
  12. Bulaev, A., & Melamud, V. (2020). Selective acid leaching of copper and zinc from old flotation tailings. Materials Science Forum, 989, 554–558. https://doi.org/10.4028/www.scientific.net/MSF.989.554.
  13. Chen, Q., Ma, C., Lee, Y. H., Dos Santos, M. M., Kim, M.-S., Meng, G., Snyder, S. A., Lee, J.-S., & Shi, H. (2024). Non-negligible toxicity to fish in the early life stages triggered by aqueous leachate of takeaway plastic containers. Environmental Science & Technology, 58(23), 10041–10051. https://doi.org/10.1021/acs.est.4c01790
  14. Cheru, M. S. (2021). Bio hydrometallurgical technology, application and process enhancement. In M. K. Nazal & H. Zhao (Eds.), Heavy metals: Their environmental impacts and mitigation. https://doi.org/10.5772/intechopen.94206
  15. Dushyantha, N., Ilankoon, I. M. S. K., Ratnayake, N. P., Premasiri, H. M. R., Dharmaratne, P. G. R., Abeysinghe, A. M. K. B., Rohitha, L. P. S., Chandrajith, R., Ratnayake, A. S., Dissanayake, D. M. D. O. K., & Batapola, N. M. (2022). Recovery potential of rare earth elements (REEs) from the gem mining waste of Sri Lanka: A case study for mine waste management. Minerals, 12(11), 1411. https://doi.org/10.3390/min12111411
  16. Eftekhari, F., Ardejani, F. D., Amini, M., Taherdangkoo, R., & Butscher, C. (2023). Enhancing tank leaching efficiency through electrokinetic remediation: A laboratory and numerical modeling study. Water, 15(22), 3923. https://doi.org/10.3390/w15223923
  17. Eksteen, J. J., Oraby, E. A., & Nguyen, V. (2020). Leaching and ion exchange based recovery of nickel and cobalt from a low grade, serpentine-rich sulfide ore using an alkaline glycine lixiviant system. Minerals Engineering, 145, 106073. https://doi.org/10.1016/j.mineng.2019.106073
  18. stay, H., Díaz-Quezada, S. Deconstructing the Leaching Ratio. Mining, Metallurgy & Exploration 37, 1329–1337 (2020). https://doi.org/10.1007/s42461-020-00243-4
  19. Ettler, V., & Vítková, M. (2021). Slag leaching properties and release of contaminants. In N. M. Piatak & V. Ettler (Eds.), Metallurgical slags: Environmental geochemistry and resource potential (pp. 151–173). Royal Society of Chemistry. https://doi.org/10.1039/9781839164576-00151.
  20. Fahrurrozi, M., Sujoto, V.S.H., Bagusantara, F. et al.Towards sustainable scandium extraction: atmospheric sulfuric acid leaching of Indonesian lateritic nickel ore. Transit Met Chem 51, 12 (2026). https://doi.org/10.1007/s11243-025-00699-7
  21. Faris, N., Pownceby, M. I., Bruckard, W. J., & Chen, M. (2022). The direct leaching of nickel sulfide flotation concentrates—A historic and state-of-the-art review part I: Piloted processes and commercial operations. Mineral Processing and Extractive Metallurgy Review, 44(6), 407–435. https://doi.org/10.1080/08827508.2022.2070617
  22. Fedotov, P., Fedotov, K., & Senchenko, A. (2021). Influence of the ore reduction method on the percolation leaching efficiency. Obogashchenie Rud, (2), 3–9. https://doi.org/10.17580/or.2021.02.03.
  23. Fedotov, P.K., Senchenko, A.E., Fedotov, K.V. et al.Hydrometallurgical Processing of Gold-Containing Ore and its Enrichment Products. Metallurgist 65, 214–227 (2021). https://doi.org/10.1007/s11015-021-01150-9
  24. Fedotov, P.K., Senchenko, A.E., Fedotov, K.V. et al.Hydrometallurgical Processing of Gold Ore.  Inst. Eng. India Ser. D 103, 549–562 (2022). https://doi.org/10.1007/s40033-022-00339-9.
  25. Gao, B., Liu, K., Li, F., & Fang, L. (2023). A chrysotile-based Fe/Ti nanoreactor enables efficient arsenic capture for sustainable environmental remediation. Water Research, 231, 119613. https://doi.org/10.1016/j.watres.2023.119613
  26. Gavrilov, A.S., Krasheninin, A.G., Petrova, S.A. et al.Extraction of Nickel from Oxidized Nickel Ores by Heap Leaching. Metallurgist 66, 593–604 (2022). https://doi.org/10.1007/s11015-022-01364-5
  27. Gavrilov, A.S., Krasheninin, A.G., Petrova, S.A. et al.Optimal parameters of the heap leaching of oxidized nickel ores by the box-wilson steep-ascent method. Part 1. Metallurgist 68, 913–921 (2024). https://doi.org/10.1007/s11015-024-01798-z
  28. Guo, Z., Liu, L., Zhou, K., Wang, X., & Zhong, W. (2023). Research on the saturated/unsaturated seepage laws of ionic rare earth ore under different leaching conditions. Frontiers in Earth Science, 11, 1212017. https://doi.org/10.3389/feart.2023.1212017
  29. Guo, Z., Liu, L., Tang, T., Zhou, K., & Wang, X. (2023). Influence of leaching solution on the soil-water characteristics of ion-absorbed rare earth minerals and its hysteresis effect. Minerals, 13(5), 637. https://doi.org/10.3390/min13050637
  30. Guzman, A., Korsikas, S.S., Olson, T. et al.Agglomeration Scale: A Method to Improve Leaching Performance. Mining, Metallurgy & Exploration 41, 501–514 (2024). https://doi.org/10.1007/s42461-024-00920-8
  31. Heydarov, A. A., Kashkai, C. M., Alyshanly, G. I., & Jabbarova, Z. A. (2021). Processing of Zaglik alunite ore by heap and tank leaching. Azerbaijan Chemical Journal. https://cyberleninka.ru/article/n/processing-of-zaglik-alunite-ore-by-heap-and-tank-leaching.
  32. Huang, Q., Zhang, C., Rao, Y., Rao, G., Wan, J., Xie, Y., & Lai, Q. (2026). Effect of height difference between adjacent liquid injection holes on wetting body evolution of ion-absorbed rare earth in situ leaching ore. Metals, 16(2), 232. https://doi.org/10.3390/met16020232
  33. Jia, Y., Ruan, R., Qu, J., Tan, Q., Sun, H., & Niu, X. (2024). Multi-scale and trans-disciplinary research and technology developments of heap bioleaching. Minerals, 14(8), 808. https://doi.org/10.3390/min14080808
  34. Jiang, Q., Jia, M., Yang, Y., & Zhang, C. (2024). Control of seepage characteristics in loose sandstone heap leaching with staged particle sieving-out method. Minerals, 14(10), 1039. https://doi.org/10.3390/min14101039
  35. Jorge, A. S., Almeida, M. F., & Pinho, S. (2023). Copper recovery from printed circuit boards: Percolation leaching. In Wastes: Solutions, treatments and opportunities IV (1st ed.). CRC Press. https://doi.org/10.1201/9781003345084-35
  36. Ju, W., Yang, J., Yao, C., Zhang, X., Ye, Z., & Liu, D. (2022). Experimental study on the permeability of rare earths with different particle composition for a novel heap leaching technology. Applied Sciences, 12(22), 11368. https://doi.org/10.3390/app122211368
  37. Kaksonen, A. H. (2025). Bioleaching. In Treatise on process metallurgy (Vol. 2B: Unit processes, pp. 363–372). https://doi.org/10.1016/B978-0-443-40294-4.00039-6.
  38. Kamalesh, A. K. (2022). Efficient extraction of valuable metals from polymetallic shale using leaching and adsorption techniques (Master’s thesis, University of Calgary). PRISM https://ucalgary.scholaris.ca/items/78b1f02e-639b-425b-b5ba-e34fa0751071.
  39. Karimova, L. M., & Kairalapov, Y. T. (2022). Percolation leaching of clay mixed copper ores. iPolytech Journal. https://cyberleninka.ru/article/n/percolation-leaching-of-clay-mixed-copper-ores
  40. Karimova, L.M., Kairalapov, Y.T. & Mansurov, B.E. Research into the Percolation Leaching of Copper and Silver from Stale Tailings.  J. Non-ferrous Metals65, 42–51 (2024). https://doi.org/10.1134/S1067821224700032
  41. Kelland, M. et al.(2023). Integrating Carbon Capture in Mining Through Metallurgy. Part 1: Leaching and Reclamation of Asbestos Tailings: Thetford Mines Carbon Capture and Remediation Project. In: Proceedings of the 61st Conference of Metallurgists, COM 2022. COM 2022. Springer, Cham. https://doi.org/10.1007/978-3-031-17425-4_66
  42. Khalafalla, M.S. Biotechnological recovery of uranium (VI) from Abu Zeneima spent ore residue using green lixiviant. J Radioanal Nucl Chem331, 2503–2513 (2022). https://doi.org/10.1007/s10967-022-08249-6
  43. Koizhanova, A., Magomedov, D., Abdyldayev, N., Yerdenova, M., & Bakrayeva, A. (2023). The effect of biochemical oxidation on the hydrometallurgical production of copper. Teknomekanik, 6(1). https://doi.org/10.24036/teknomekanik.v6i1.16072
  44. Krylova, L.N. Efficiency of Ozone Application for Extraction of Metals from Mineral Raw Materials.  J. Non-ferrous Metals63, 247–255 (2022). https://doi.org/10.3103/S1067821222030087
  45. Kinyondo, A., & Huggins, C. (2021). State-led efforts to reduce environmental impacts of artisanal and small-scale mining in Tanzania: Implications for fulfilment of the sustainable development goals. Environmental Science & Policy, 120, 157–164. https://doi.org/10.1016/j.envsci.2021.02.017
  46. Laatikainen, M., Makarova, I., Sainio, T., & Repo, E. (2021). Selective acid leaching of rare earth elements from roasted NdFeB magnets. Separation and Purification Technology, 278, 119571. https://doi.org/10.1016/j.seppur.2021.119571
  47. Lameck, A.S., Rotich, B., Ahmed, A. et al.Land use/land cover changes due to gold mining in the Singida region, central Tanzania: environmental and socio-economic implications. Environ Monit Assess 197, 464 (2025). https://doi.org/10.1007/s10661-025-13921-x
  48. León, F., Rojas, L., Bazán, V., Martínez, Y., Peña, A., & Garcia, J. (2025). A systematic review of copper heap leaching: Key operational variables, green reagents, and sustainable engineering strategies. Processes, 13(5), 1513. https://doi.org/10.3390/pr13051513
  49. Li, C., Liu, Q., Liu, L. et al.Simulation of the natural attenuation of groundwater contaminated by acid in situ leaching at a uranium mine. J Radioanal Nucl Chem 333, 4907–4917 (2024). https://doi.org/10.1007/s10967-024-09624-1
  50. Li, J., Yang, H., Tong, L., & Sand, W. (2021). Some aspects of industrial heap bioleaching technology: From basics to practice. Mineral Processing and Extractive Metallurgy Review, 43(4), 510–528. https://doi.org/10.1080/08827508.2021.1893720
  51. Ling, H., Malfliet, A., Blanpain, B., & Guo, M. (2024). A review of the technologies for antimony recovery from refractory ores and metallurgical residues. Mineral Processing and Extractive Metallurgy Review, 45(3), 200–224. https://doi.org/10.1080/08827508.2022.2132946
  52. Mamyrbayeva, K., Tulepbergenov, A., & Baikonurov, E. (2025). Review article on the technology of leaching of substandard copper concentrates: Methods and trends. Canadian Metallurgical Quarterly. Advance online publication. https://doi.org/10.1080/00084433.2025.2546176
  53. Haghighat Manesh, M. J. (2025). Harnessing thermoacidophilic archaea for recovery and separation of critical metals and elements (Doctoral dissertation, North Carolina State University). ProQuest Dissertations & Theses. https://www.proquest.com/openview/b88ccbce89f5969e262d1b912ead30db.
  54. Manstein, Y., Olenchenko, V., & Golovko, L. A. (2023). Increasing the environmental safety of heap leaching: Geophysical solutions. In Book of Abstracts: 4th Atlas Georesources International Congress (AGIC): Geoscience innovations for resource management: Socio-economic challenges in an environmentally constrained world (p. 182). https://istina.ficp.ac.ru/publications/article/627957419/.
  55. Manzila, A. N., Moyo, T., & Petersen, J. (2022). A study on the applicability of agitated cyanide leaching and thiosulphate leaching for gold extraction in artisanal and small-scale gold mining. Minerals, 12(10), 1291. https://doi.org/10.3390/min12101291
  56. Miiro, E. (2023). Hydrometallurgical processing of rare earth elements from ion adsorption clays (Master’s thesis, University of Cape Town). http://hdl.handle.net/11427/39674
  57. Mokmeli, M. (2020). Pre-feasibility study in hydrometallurgical treatment of low-grade chalcopyrite ores from Sarcheshmeh copper mine. Hydrometallurgy, 191, 105215. https://doi.org/10.1016/j.hydromet.2019.105215
  58. Moravvej, Z., Mohebbi, A., Vakylabad, A. B., & Raeissi, S. (2021). The effect of radio-waves irradiation on copper-ore leaching. Hydrometallurgy, 201, 105584. https://doi.org/10.1016/j.hydromet.2021.105584
  59. Mubarak, Y. (2020). Leaching of copper ores: Effects of operating variables. International Journal of Emerging Trends in Engineering Research, 8(8), 4226–4235. https://doi.org/10.30534/ijeter/2020/31882020.
  60. Nagar, M. S. (2021). Techno-economic study on reagents consumption during uranium leaching, a case study: Gattar pilot plant, Egypt. Cogent Engineering, 8(1), 1985689. https://doi.org/10.1080/23311916.2021.1985689
  61. Nwaila, G.T., Ghorbani, Y., Becker, M. et al.Geometallurgical Approach for Implications of Ore Blending on Cyanide Leaching and Adsorption Behavior of Witwatersrand Gold Ores, South Africa. Nat Resour Res 29, 1007–1030 (2020). https://doi.org/10.1007/s11053-019-09522-4
  62. Odidi, M. D., Fagan-Endres, M. A., & Harrison, S. T. L. (2023). Moisture absorption rates via capillary suction within packed beds – The effect of material and fluid properties with implications for heap leaching operations. Hydrometallurgy, 215, 105975. https://doi.org/10.1016/j.hydromet.2022.105975
  63. Ouassel, S., Guettaf, H., Khemaissia, S. et al.Parametric study of uranium ore acid leaching by percolation: experimental design, kinetic study and numerical modeling with the unreacted shrinking core model. J Radioanal Nucl Chem 334, 3599–3612 (2025). https://doi.org/10.1007/s10967-025-10070-w
  64. Page, M. J., McKenzie, J. E., Bossuyt, P. M., Boutron, I., Hoffmann, T. C., Mulrow, C. D., Shamseer, L., Tetzlaff, J. M., Akl, E. A., Brennan, S. E., Chou, R., Glanville, J., Grimshaw, J. M., Hróbjartsson, A., Lalu, M. M., Li, T., Loder, E. W., Mayo-Wilson, E., McDonald, S., … Moher, D. (2021). The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ, 372, n71. https://doi.org/10.1136/bmj.n71
  65. Pereira, A. C. (2026). From columns to industrial heaps: Critical design considerations for heap leach pilot plants. International Journal of Modern Research in Engineering and Technology (IJMRET), 11(3). https://doi.org/10.5281/zenodo.18979542
  66. Petersen, J., & van Staden, P. (2025). Heap leaching: Process, principles, and practical considerations. In Treatise on process metallurgy (Vol. 2B: Unit processes, pp. 333–345). https://doi.org/10.1016/B978-0-443-40294-4.00029-3.
  67. Rasool, M. H., Ridha, S., Ahmad, M., Shamsuddun, R. A. B., Zahoor, M. K., & Khan, A. (2025). A mineralogical perspective on rare earth elements (REEs) extraction from drill cuttings: A review. Minerals, 15(5), 533. https://doi.org/10.3390/min15050533
  68. Rasskazova, A. V., Sekisov, A. G., Kirilchuk, M. S., & Vasyanovich, Y. A. (2020). Stage-activation leaching of oxidized copper–gold ore: Theory and technology. Eurasian Mining. https://doi.org/10.17580/em.2020.01.10
  69. Rasskazov, I. Y., Sekisov, A. G., & Rasskazova, A. V. (2022). In-situ leaching of molybdenum and uranium by percarbonate and chloride-hypochlorite solutions. Zapiski Gornogo Instituta. https://cyberleninka.ru/article/n/in-situ-leaching-of-molybdenum-and-uranium-by-percarbonate-and-chloride-hypochlorite-solutions.
  70. Reis, A. S., & Monteiro, R. P. G. (2020). Study of thorium and uranium isotopes activity concentration after percolation or agitation leaching, in mining lixiviation liquor samples. Brazilian Journal of Radiation Sciences, 8(1). https://doi.org/10.15392/bjrs.v8i1.933
  71. Rito, B., Almeida, D., Coimbra, C., Vicente, D., Francisco, R., Branco, R., Weigand, H., & Morais, P. V. (2022). Post-measurement compressed calibration for ICP-MS-based metal quantification in mine residues bioleaching. Scientific Reports, 12, 16007. https://doi.org/10.1038/s41598-022-20432
  72. Robertson, S. W., van Staden, P. J., Cherkaev, A., & Petersen, J. (2022). Properties governing the flow of solution through crushed ore for heap leaching. Hydrometallurgy, 208, 105811. https://doi.org/10.1016/j.hydromet.2021.105811
  73. Robertson, S. W., & Petersen, J. (2024). Modelling unsaturated dual-phase flow through crushed ores for heap leaching. Journal of the Southern African Institute of Mining and Metallurgy, 124(12). https://doi.org/10.17159/2411-9717/697/2024.
  74. Roman, P., & Saria, J. (2025). The influence of vat leach reprocessed tailings on heavy metals levels around Sekenke Gold Mine, Iramba District, Tanzania. East African Journal of Biophysical and Computational Sciences, 6(1). https://journals.hu.edu.et/hu-journals/index.php/eajbcs/article/view/1209
  75. Rötzer, N., & Schmidt, M. (2020). Historical, current, and future energy demand from global copper production and its impact on climate change. Resources, 9(4), 44. https://doi.org/10.3390/resources9040044
  76. Saldaña, M., Gálvez, E., Robles, P., Castillo, J., & Toro, N. (2022). Copper mineral leaching mathematical models—A review. Materials, 15(5), 1757. https://doi.org/10.3390/ma15051757
  77. Sekisov, A., & Rasskazova, A. (2021). Assessment of the possibility of hydrometallurgical processing of low-grade ores in the oxidation zone of the Malmyzh Cu–Au porphyry deposit. Minerals, 11(10), 1097. https://doi.org/10.3390/min11101097
  78. Shengo Lutandula, M., Kitobo, W. S., Kime, M. B., Mambwe, M. P., & Nyembo, T. K. (2020). Mineralogical variations with the mining depth in the Congo Copperbelt: Technical and environmental challenges in the hydrometallurgical processing of copper and cobalt ores. Journal of Sustainable Metallurgy, 6(4), 678–692. https://doi.org/10.1007/s40831-020-00316-7
  79. Shumilova, L.V., Khatkova, A.N. & Razmakhnin, K.K. Development of a Combined Technology for Producing Base Gold Alloy from Waste of Different Types. Metallurgi66, 1162–1170 (2023). https://doi.org/10.1007/s11015-023-01428-0
  80. Soares, A.S.F., da Costa Marques, M.R. & da Cunha Costa, L. Physical-chemical characterization and leaching studies involving drill cuttings generated in oil and gas pre-salt drilling activities. Environ Sci Pollut Res30, 17899–17914 (2023). https://doi.org/10.1007/s11356-022-23398-7
  81. Sun, H.-Y., Ruan, R.-M., & Deng, J.-S. (2025). Kinetics of chalcopyrite dissolution in ammonia solution under sealed conditions and controlled redox potential. Transactions of Nonferrous Metals Society of China, 35(5), 1691–1703. https://doi.org/10.1016/S1003-6326(25)66776-8
  82. Surimbayev, B., Bolotova, L., Akcil, A., Yessengarayev, Y., Khumarbekuly, Y., Kanaly, Y., et al. (2024). Gravity concentration of gold-bearing ores and processing of concentrates: A review. Mineral Processing and Extractive Metallurgy Review, 46(7), 726–750. https://doi.org/10.1080/08827508.2024.2395824
  83. Tao, J.-L., Deng, Y.-C., Ye, D.-X., Chen, B.-F., Zhou, Y., Zhong, J.-G., Wang, X., & Wang, W. (2025). Fine exploration and green development of ion-adsorption type REE deposits in South China using multi-geophysical technology. Frontiers in Earth Science, 13, 1489870. https://doi.org/10.3389/feart.2025.1489870
  84. Tezyapar Kara, I., Kremser, K., Wagland, S.T. et al.Bioleaching metal-bearing wastes and by-products for resource recovery: a review. Environ Chem Lett 21, 3329–3350 (2023). https://doi.org/10.1007/s10311-023-01611-4
  85. Tomassi, O. D. (2024). Transitioning towards sustainability in artisanal and small-scale gold mining: A case study from Tanzania. The Extractive Industries and Society, 17, 101410. https://doi.org/10.1016/j.exis.2024.101410
  86. Toro, N., Ghorbani, Y., Turan, M. D., Robles, P., & Gálvez, E. (2021). Gangues and clays minerals as rate-limiting factors in copper heap leaching: A review. Metals, 11(10), 1539. https://doi.org/10.3390/met11101539
  87. Vinodhkumar, S., Balaji, S., Kulanthaivel, P. et al.Utilisation of magnesite mine tailings as sustainable structural fill material: a novel approach to mitigate environmental impact.  J. Environ. Sci. Technol. 22, 13661–13672 (2025). https://doi.org/10.1007/s13762-025-06501-6
  88. Wang, D., Wu, F., Rao, Y., Zhao, Z., Xu, W., & Han, M. (2024). Microscopic simulation of RE³⁺ migration in ion-type rare earth ores based on Navier–Stokes equation—Exchange reaction—Ion migration coupling. Metals, 14(10), 1130. https://doi.org/10.3390/met14101130
  89. Wang, H., Wang, X., Li, G. et al.Weakening of mechanical parameters of ion-absorbed rare-earth ores subjected to leaching.  Geophys. Geo-energ. Geo-resour. 9, 124 (2023). https://doi.org/10.1007/s40948-023-00661-w
  90. Wang, H., Xu, C., Dowd, P. A., Wang, Z., & Faulkner, L. (2022). Modelling in-situ recovery (ISR) of copper at the Kapunda mine, Australia. Minerals Engineering, 186, 107752. https://doi.org/10.1016/j.mineng.2022.107752
  91. Wang, Lm., Yin, Sh. & Wu, Ax. Visualization of flow behavior in ore-segregated packed beds with fine interlayers. Int J Miner Metall Mater27, 900–909 (2020). https://doi.org/10.1007/s12613-020-2059-3
  92. Wang, L., Yin, S., Zhang, X., Yan, Z., & Liao, W. (2022). Hydrodynamic hysteresis and solute transport in agglomerated heaps under irrigation, stacking, and bioleaching controlling. Minerals, 12(12), 1623. https://doi.org/10.3390/min12121623
  93. Wang, X., Shen, J., Fan, L., & Zhang, Y. (2024). Research on salt drainage efficiency and anti-siltation effect of subsurface drainage pipes with different filter materials. Water, 16(10), 1432. https://doi.org/10.3390/w16101432
  94. Wang, X., Wang, H., Sui, C., Zhou, L., Feng, X., Huang, C., Zhao, K., Zhong, W., & Hu, K. (2020). Permeability and adsorption–desorption behavior of rare earth in laboratory leaching tests. Minerals, 10(10), 889. https://doi.org/10.3390/min10100889
  95. Wankat, P. C. (2022). Separation process engineering: Includes mass transfer analysis (3rd ed.).
  96. In Environmental Policy in Mining.
  97. Wei, C., Su, X., Que, W., Chen, X., Li, J., & Du, Z. (2023). Design of U-shaped tower based on the integrated process of saturated readsorption and leaching of uranium-bearing resin. Hydrometallurgy of China, 42(3), 312–317. https://doi.org/10.13355/j.cnki.sfyj.2023.03.016
  98. Xing, W. D., Sohn, S. H., & Lee, M. S. (2020). A review on the recovery of noble metals from anode slimes. Mineral Processing and Extractive Metallurgy Review, 41(2), 130–143. https://doi.org/10.1080/08827508.2019.1575211
  99. Yamini, K., Dyer, L. G., Tadesse, B., & Alorro, R. D. (2025). Toward expanding the utilisation of deep eutectic solvents: Rare earth recovery from primary ores and process tailings. Clean Technologies, 7(4), 111. https://doi.org/10.3390/cleantechnol7040111
  100. Yang, J., Bauer, S., & Verba, C. (2022). Strategies to recover easily-extractable rare earth elements and other critical metals from coal waste streams and adjacent rock strata using citric acid (Report No. DOE/NETL-2022/3732). U.S. Department of Energy, National Energy Technology Laboratory. https://doi.org/10.2172/1884275.
  101. Yu, H., Zahidi, I., Fai, C. M., Liang, D., & Madsen, D. Ø. (2024). Mineral waste recycling, sustainable chemical engineering, and circular economy. Results in Engineering, 21, 101865. https://doi.org/10.1016/j.rineng.2024.101865
  102. Zakia, S. A, Rashad, M. M., Mohamed, S. A., El Sheikh, E. M., Mira, H. E., Abd El Wahab, G. M., . (2020). Kinetics of uranium leaching process using sulfuric acid for Wadi Nasib ore, South western Sinai, Egypt. Aswan University Journal of Environmental Studies, 1(2), 171–182. https://doi.org/10.21608/aujes.2020.127584.
  103. Zhao, Z., Feng, S., Xiao, C., Luo, J., Song, W., Wan, Y., & Li, S. (2022). Exploring ions selectivity of nanofiltration membranes for rare earth wastewater treatment. Separation and Purification Technology, 289, 120748. https://doi.org/10.1016/j.seppur.2022.120748
  104. Zheng, Q. (2026). X-ray imaging of fluid flow and reactive transport in dual-porosity media: Implications for heap leaching (Doctoral dissertation). UNSW Sydney.
  105. Zhou, L., Wang, X., Huang, C., Wang, H., Ye, H., Hu, K., & Zhong, W. (2021). Development of pore structure characteristics of a weathered crust elution-deposited rare earth ore during leaching with different valence cations. Hydrometallurgy, 201, 105579. https://doi.org/10.1016/j.hydromet.2021.105579

Author's Affiliation

   Antonio Clareti Pereira
Department of Chemical Engineering, School of Engineering, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, Brazil ORCID: https://orcid.org/0000-0001-8115-4279

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Antonio Clareti Pereira, 2026

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Vat Leaching and Box Leaching in Hydrometallurgy: Process Principles, Industrial Applications, and Future Perspectives. Antonio Clareti Pereira, 9(3), 1548-1577. Retrieved from https://ijcsrr.org/single-view/?id=25814&pid=25621

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