Recovery and Concentration of Al(III), Fe(III), Ti(IV), and Na(I) from Red Mud

Removal of fluoride from water using anion-exchange membrane under Donnan dialysis condition

“…Decreasing of pH of the feed phase with HCl also causes the increasing Cl − ion which is an accompanying anion for fluoride ion [27,28]. The influence of accompanying Cl − ion on the fluoride transported can be seen as flux value in Table 1, which indicates that presence of Cl − ion in feed phase decreases the transport of fluoride ion toward receiver phase because of the competition.…”

Structural and thermal characterization of poly(2‐chloroaniline)/red mud nanocomposite materials

“…The characterization of as-prepared P2ClAn/RM composites included electrical-conductivity measurements, Fourier transform infrared (FTIR) and ultraviolet-visible (UV-vis) spectroscopy, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and environmental scanning electron microscopy/field emission gun (ES-EM-FEG). 21 The original RM was prepared via washing with HCl and water until neutralization and then was dried. RM was dried in vacuo at 100°C for 3 days before use in each experiment.…”

The effect of chelating agent on the separation of Fe(III) and Ti(IV) from binary mixture solution by cation-exchange membrane

“…The basic mechanism of the Donnan dialysis process was described in previous work [18]. In this process, transport of metal ions is balanced by the pumping ion; in this case the H + ion moves as the counterbalance.…”