Membranes for the treatment of mineral acids

If mineral acids are to be produced from their salts by electrolysis or electrodialysis with bipolar membranes , high current efficiencies are necessary. Acidblocker anion exchange membranes developed at PCA provide this characteristic due to a minimized proton leakage. The loss of product over the acidblocker anion exchange membrane is minimized.

In the liberation of a wide variety of organic acids out of their salts, the voltage drop across the anion exchange membrane gives a considerable part to the energy consumption of the process. This electrochemical processing technology enables the processing of acids like acetic acid, citric acid, gluconic acid, lactobionic acid etc., which are produced by fermentation or by chemical processes.

PCA has developed membranes for the treatment of organic acids with a low electric resistance:

The type of membranes used and the process conditions choosen are determined by the requirements of application. For more information about typical applications of the different types of membranes please confer our News Corner.
When choosing the membrane type, the chemical and physical properties of th e membranes listedbelow have to be taken into account.
PCA offers you support at all stages of process realization from the first application screening through to the engineering and planning of the plant.