Preparation of highly purity Tetrabutyl Ammonium Hydroxide using a novel method of Electro-Electrodialysis: The study on mass transfer process and influencing factors

A coupling process of electrodialysis with oxime hydrolysis reaction for preparation of hydroxylamine sulfate

“…27 Generally, the ion radius is much smaller than the pore. Thus ions, even with a high molecular weight, such as organic acid, 17 ionic liquid, 28 and quaternary ammonium salt, 29 can penetrate through IEMs, whereas the molecules cannot penetrate through them because of the Donnan equilibrium. 30 NH 2 OH can be regarded as a high electronegative group (-NH 2 ) substituting one of the hydrogen atoms in the H 2 O or as a strong electron-withdrawing group (-OH) substituting one of the hydrogen atoms in the NH 3 .…”

“… 27 Generally, the ion radius is much smaller than the pore. Thus ions, even with a high molecular weight, such as organic acid, 17 ionic liquid, 28 and quaternary ammonium salt, 29 can penetrate through IEMs, whereas the molecules cannot penetrate through them because of the Donnan equilibrium. 30 …”

Copper Recovery From Ammonia Solutions Through Electro-Electrodialysis (EED)

“…Widespread research interests regarding applications of EED are being directed toward applications such as water purification ( Wu et al, 2019 ; Mejía et al, 2020 ), organic and inorganic acid and base recovery ( Chapotot et al, 1995 ; Yi et al, 2008 ; Wei et al, 2013 ; Tanaka et al, 2014 ; Miao et al, 2016 ; Pisarska et al, 2017 ), as well as metal concentration from liquid sources ( Jin et al, 2016 ; Liu et al, 2020 ). Par excellence, electrochemical processes have been chosen as efficient, effective, and reliable methodologies for processes involving the selective recovery of metallic species ( Jin and Zhang, 2020 ).…”