Electrodialytic concentrating lithium salt from primary resource

Transport Characteristics of CJMAED™ Homogeneous Anion Exchange Membranes in Sodium Chloride and Sodium Sulfate Solutions

“…First of all, they are designed for transport of large, highly hydrated ions and have already shown their effectiveness in extraction of 5’-ribonucleotides from hydrolysate [ 23 ], in recovery of gamma-aminobutyric acid (GABA) from reaction mixtures containing salt [ 31 ], in purification of methylsulfonylmethane from mixtures containing salt [ 32 ], in defluoridation of tea infusion [ 33 ], in separation of soluble saccharides from the aqueous solution containing ionic liquids [ 34 ] in salt valorization process from high salinity textile wastewater [ 35 ], in concentration of the high-salinity solutions prior to being treated by an evaporative crystallizer [ 36 ]. At the same time, in some cases, for example, when ED concentrating lithium sulphate from primary resources, new CJMAED membranes demonstrate lower efficiency compared to the traditional Neosepta AMX membrane [ 37 ]. Although CJMAED membranes have already found numerous applications, knowledge of their properties is fragmentary.…”

Application of Multistage Concentration (MSC) Electrodialysis to Concentrate Lithium from Lithium-Containing Waste Solution

“…In this study, two or more stages of ED were performed through a continuous process, and the MSC method was used for the concentrated solution at high concentration. Usually, the optimal conditions in the first stage are confirmed by the HVRC method and concentrated to a high concentration by the MSC method [17]. In a previous study by the authors, the conditions for lithium concentration in waste liquid containing lithium were established by HVRC, and in this study, a high concentration of lithium was also achieved by MSC.…”

“…If the water transfer rate is high, the ion concentration ratio can be reduced, so the effect on water movement cannot be ignored. Although osmotic pressure due to a concentration difference is hardly generated while an electric field is applied to the ion exchange membrane, metal ions and hydrated water molecules can move together by electrolytic osmosis to increase the water transfer [16,17].…”

Highly efficient extraction of lithium from salt lake brine by LiAl-layered double hydroxides as lithium-ion-selective capturing material

“…The Na/Li ratio in weight was as high as 48.7. The separation of Na + and Li + ions is difficult from such high Na/Li ratio solutions because both Na + and Li + are monovalent cations [26] .…”

“…To solve this challenge, several methods have been developed for extracting lithium from salt lake brines in the Qaidam Basin, including calcination [9] , adsorption [10][11][12][13][14][15][16][17][18][19] , extraction [20][21][22][23][24][25] and membrane technology [26][27][28][29][30] . The fundamental feedstock Li 2 CO 3 , typically at industrial grades ( ∼95%), is produced by these methods.…”