Abstract Niobium (Nb) and Tantalum (Ta) are used to increase materials' mechanical
resistance and produce lighter alloys. Worldwide Nb production reached 78 000 t in 2020 …

This article presents a comprehensive analysis of the challenges and advancements in the
extraction of niobium (Nb) and tantalum (Ta), focusing on global production and the growing …

Sample digestion and complete dissolution are prerequisites for the precise and accurate
elemental analysis of ores and minerals by instrumental analytical methods. Pegmatite ores …

Current industrial processes of tantalum (Ta) and niobium (Nb) extraction from primary
resources rely in majority on hydrofluoric (HF) acid leaching, which is raising material …

Niobium and tantalum are generally found together in nature in ores such as columbite,
tantalite, and pyrochlore. These ores can occasionally associate with cassiterite, the tin ore …

Results from purification and separation of Ta and Nb from bifluoride-based leachates
aiming to produce high-purity Ta and Nb oxides are reported. The leachates have been …

Tantalite ore is the main source of the metals niobium (Nb) and tantalum (Ta). Today, the
needs for these economic and irreplaceable Nb, and Ta metals are becoming imperative for …

Com o avanço tecnológico, a demanda por nióbio e tântalo está em ascensão. Entretanto,
suas reservas são limitadas e distribuídas irregularmente. Dessa forma, busca-se a …