Mass transport modeling and analysis on the mutual separation of lanthanum(III) and cerium(IV) through a hollow fiber supported liquid membrane

Synergistic extraction and separation of Dysprosium and Europium by supported liquid membrane

“…Supported liquid membrane (SLM) and emulsion liquid membrane (ELM) are the two configurations of the membranes that are generally used for facilitated transport of the metal ions [5]. Recently, the SLM process has been regarded as an attractive alternative for conventional solvent extraction for metal separation because limitations such as emulsification, flooding, loss of solvent, phase disengagement and large solvent inventory can be avoided [6]. The advantages possessed by SLMs, such as less capital and low operating cost, considerable potential for energy-saving, minimal use of expensive carriers, simple operation, and easy scale-up, favor their use in experimental studies [7].…”

Biosorption of palladium(II) from aqueous solution by grafting chitosan on persimmon tannin extract

“…The Gibbs free energy of adsorption ( G) at all temperatures was calculated using Eq. (8). The G of Pd(II) adsorption processes were all negative, illustrating that the adsorption processes were thermodynamically feasible and spontaneous at 303-323 K. The magnitude of G increased with the rise in temperature.…”

“…At present, extensive separation techniques are available for removal of metal ions from aqueous solution including precipitation, ion-exchange, membrane filtration, extraction, electrocoagulation, and adsorption [7][8][9][10][11]. Precipitation followed by coagulation has limited applicability due to large volume of sludge being produced.…”

Solvent extraction performance of Pr (III) from chloride acidic solution with 2-ethylhexyl phosphoric acid-2-ethylhexyl ester (EHEHPA) by using membrane dispersion micro-extractor

“…With an advantage of combining extraction and stripping in a single operation, liquid membrane separation technique, especially hollow fiber supported liquid membrane, was studied for the rare earth element solvent extraction process (Wannachod et al, 2011;Pei et al, 2011;Ramakul et al, 2012;Belova et al, 2014). By impregnating the extractant into the polymer beads and resin, the polymer beads and resin have been used to recover or separate rare earths (Sun et al, 2008;Sun et al, 2009;Lee et al, 2010;Yadav et al, 2013).…”