Extractive metallurgy of columbite-tantalite ore: A detailed review

DK Rajak, R Jordaan, A Gómez-Arias, W Purcell - Minerals Engineering, 2022 - Elsevier
The increased demand of metals such as tantalum (Ta) and niobium (Nb) reflect the on-
going development in modern science, engineering and technology. The extraction of these …

An overview on recent separation and purification strategies for recovery of Nb and Ta from primary and secondary ore sources

TF de Oliveira, JAS Tenório, DCR Espinosa - Minerals Engineering, 2023 - Elsevier
This paper focuses on processing technologies for the exploitation and purification of Nb
and Ta from primary and secondary ore sources that have been used for extraction of these …

Intelligent prediction model of mechanical properties of ultrathin niobium strips based on XGBoost ensemble learning algorithm

ZH Wang, YF Liu, T Wang, JG Wang, YM Liu… - Computational Materials …, 2024 - Elsevier
Ultrathin niobium strips with different thicknesses are prepared by an accumulative rolling
process. The tensile test of the ultrathin niobium strips is carried out, and the microstructure …

AgNbO3-based antiferroelectric ceramics with superior energy storage performance via Gd/Ta substitution at A/B sites

D Yang, M Su, C Yuan, J Wu, L Meng, J Xu, W Lei… - Ceramics …, 2023 - Elsevier
Dielectric materials have attracted considerable attention owing to their excellent power
densities and fast charge/discharge characteristics. AgNbO 3, as a typical antiferroelectric …

A critical updated review of all stages of the tantalum recycling chain from waste of tantalum capacitors

LM Martelo, PMS Sousa, MAD Silva… - Chemical Engineering …, 2023 - Elsevier
Tantalum (Ta) is classified by the European Union as a critical metal. Up to date, Ta is
irreplaceable in many technological areas but the Ta recycling rate from current end-of-life …

Process applications and challenges in mineral beneficiation and recovery of niobium from ore deposits–A review

NS Nzeh, S Adeosun, AP Popoola… - Mineral Processing …, 2022 - Taylor & Francis
Recent technological and industrial developments in applications of Nb as well as its
demand by aviation, communication, electronics, atomic and nuclear energy, metallurgical …

Recovery of silica-free tantalum from epoxy-coated tantalum capacitors using hydrometallurgical routes

M Agrawal, R Singh, KK Singh - Journal of Environmental Chemical …, 2022 - Elsevier
Scarcity of natural resources along with rising demand for tantalum from the capacitor and
superalloy sector has made it a critical metal. Increasing pressure on consistent supply is a …

Application and recycling of tantalum from waste electric and electronic equipment–A review

M Nieberl, A Hornung, M Sajdak, AJ Majewski… - Resources …, 2023 - Elsevier
The critical metal tantalum is of high importance to our society. It is widely applied in
telecommunication infrastructure, consumer electronics, vehicles, medical equipment, etc …

Factors and challenges in the recovery of niobium and tantalum from mineral deposits, recommendations for future development–A review

NS Nzeh, API Popoola, AA Adeleke… - Materials Today …, 2022 - Elsevier
The separation and extraction of Nb/Ta metallic elements from mineral deposits have
become challenging, involving complex and complicated separation process routes from the …

Hydrometallurgical recovery of manganese and nickel and isolation of tantalum from obsolete tantalum capacitor

M Agrawal, KK Singh, R Singh - Journal of Environmental Chemical …, 2022 - Elsevier
Tantalum capacitor demand is rapidly growing, primarily from the electronic and superalloy
industries. Indeed, the global tantalum market is anticipated to boost at a compound annual …