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Recovery of gold from spent matrices using supercritical carbon dioxide
(North-West University, 2007)
The feasibility of recovering gold preloaded onto activated carbon by supercritical
carbon dioxide (sc-CO2) was investigated in view of the actuality of a more environmentally friendly process for the retrieval of gold ...
The supercritical carbon dioxide extraction of some food related products
(North-West University, 2007)
The sc-CO2 extraction of annato pigment from seed, piperine from black pepper corns
and caffeine from coffee beans was shown to be feasible, yielding extracts comparable
to those obtainable by solvent extraction.
A ...