Browsing Natural and Agricultural Sciences by Subject "Membrane-based solvent extraction"
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The cobalt-nickel pertraction refinery to process recycled spent catalysts leach solutions
(North-West University (South Africa), 2019)Over the last two years, the cobalt (Co) price has increased considerably. The observed increase can be attributed to the increase in demand of lithium-ion batteries (LIBs) of which Co forms an integral part. As a consequence ... -
Separation of tantalum and niobium by solvent extraction
(North-West University, 2012)Niobium (Nb) and tantalum (Ta) are found in the same group (VB) of the periodic table of elements and therefore have similar chemical properties, which is the reason why they are difficult to separate. They are usually ...