On-going technological developments, especially in the field of microelectronics and
communication have reflected in concomitant increase in the demand for strategic metals …

The efficiency of physical separation techniques of heavy minerals usually encounters some
set-backs. The reason is often not far from the inability to develop suitable mineral …

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 …

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 …

Recent technological and industrial developments in applications of Nb as well as its
demand by aviation, communication, electronics, atomic and nuclear energy, metallurgical …

The separation and extraction of Nb/Ta metallic elements from mineral deposits have
become challenging, involving complex and complicated separation process routes from the …

An alkaline roasting of a coltan bearing ore from the Numbi deposit (South Kivu, the DRC)
was investigated with particular focus on the extraction kinetics of Ta and Nb. Isothermal …

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 …

A novel approach for Ta and Nb extraction consisting of the pre-treatment of a coltan-
bearing ore with an ammonium bifluoride sub-molten salt and subsequent acid leaching has …

This study focused on the leaching of uranium and thorium from a high grade Ethiopian
tantalite ore using sulfuric acid. The effects of variables such as acid concentration …