Ion exchange membrane
Ion exchange membrane is the core spare part of ion membrane electrolyzer devices, with selective permeability. The ion exchange membrane is made from polymer material with selective permeability for ion, also called ion selective permeability membrane.
The following describes the major principles of Asahi Chemical’s ion exchange membrane chlor-alkali process.
In the ion exchange membrane process for producing caustic soda, permselective cation exchange membranes are installed between cathodes and anodes.
Electrolysis is carried out while brine is circulated in Anolyte Compartment, and caustic soda through Catholyte Compartment.