Microfluidic solvent extraction of metal ions from industrial grade leach solutions: Extraction performance and channel aging
MetadataShow full item record
Microfluidic solvent extraction (microSX) of metal ions from industrial grade mineral leach solutions was studied. In conventional bulk-scale SX, partially hydrophobic nanoparticles that are present in the leach solution readily adsorb at the liquid-liquid interface of the dispersed droplets, causing delayed or incomplete phase separation and reduce efficiency. In contrast, microSX employs continuous microscopic streams of aqueous and organic phases (without mixing the phases) and, in this way, bypasses the need for a conventional phase separation stage. This makes the technique promising for handling complex leach solutions. The stability of the two-phase flow is considered in terms of the surface wettability and guiding geometry of the microchannel, which determines the Laplace pressure window that stabilizes the liquid-liquid interface. We show that careful characterization of the microchannel wettability, including contact angle hysteresis, is essential to predict long-term flow stability.
Showing items related by title, author, creator and subject.
Properties of lithium under hydrothermal conditions revealed by in situ Raman spectroscopic characterization of Li2O-SO3-H2O (D2O) systems at temperatures up to 420 °CWang, X.; Wang, X.; Chou, I.; Hu, W.; Wan, Y.; Li, Zhen (2017)© 2017 Elsevier B.V.Lithium (Li) is an important component of hydrothermal fluids, especially submarine hydrothermal fluids. Investigation of the species and ion complexation of Li+ at elevated temperature and pressure ...
Attiwell, Shelly Eileen (2013)Two bauxite residue products, Alkaloam® and Red Lime™, generated from Alcoa of Australia’s Western Australia alumina refineries, have the potential to be re-used in a range of applications, in particular in agricultural ...
Ben Mahmud, Hisham (2012)The development of oil and gas fields in offshore deep waters (more than 1000 m) will become more common in the future. Inevitably, production systems will operate under multiphase flow conditions. The two–phase flow of ...