A comprehensive review on the synthesis and applications of ion exchange membranes.

A continuous mode operation of bipolar membrane electrodialysis (BMED) for the production of high-pure choline hydroxide from choline chloride

A Sustainable Valorization of Neopentyl Glycol Salt Waste Containing Sodium Formate via Bipolar Membrane Electrodialysis

Alkaline leaching with highly selective ammoniacal complexing agents is an interesting alternative for the treatment of copper concentrates. This treatment is beneficial for copper recovery because it allows the formation of soluble amines complexes, being the most stable the cupric tetramine ( Cu(NH_3 )_4^(2+)). In order to suppress the unit operation of solvent extraction (SX) and move directly to the electrochemical process, an electro-electrodialysis (EED) process using ion exchange membranes to obtain copper is proposed. The study contemplates the operation with synthetic ammonia solutions containing copper at different concentrations and current density under standard conditions of pressure and temperature. The presented data demonstrates that the concentration of copper in the solution and the excess of ammonia are inversely related to the efficiency of the current and the voltage of the cell, whereas an increase in current density causes an increase in current efficiency, contrary to what happens in sulfuric systems.

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

Tetra-uranium fluoride electrowinning by electro-electrodialysis cell (EED)

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

Ransheng Liu

Papers

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