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

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 …

The production of high purity niobium (Nb) or tantalum (Ta) compounds still relies on
processes that require highly acidic conditions and concentrated HF or NH 4 F solutions …

Niobium and tantalum are found together in natural minerals. Leaching with concentrated
acid solution or alkaline roasting followed by water/dilute acid leaching results in a solution …

The current hydrometallurgical processes used for niobium and tantalum recovery are
operated in strongly acidic and fluoride-containing solutions. To avoid the use of these …

A fluoride-free solvent extraction method for niobium separation in leached sulfuric mother
liquor of ilmenorutile was proposed in this paper. The extraction system comprising trioctyl …

A'green'single-step separation process, involving a phosphonium phosphinate
functionalized ionic liquid (FIL) in C8mim· NTf2, has been developed for highly encouraging …