METHOD FOR CONDITIONING AND HYDROLYSIS OF AN EXTRUDED MEMBRANE

METHOD FOR CONDITIONING AND HYDROLYSIS OF AN EXTRUDED MEMBRANE

A method (500) for conditioning or hydrolysis of an extruded membrane is disclosed. The method (500) comprising ion exchange processes in divided electrochemical cells using a cation exchanger membrane. The method (500) includes extruding the perfluorosulfonyl fluoride membranes from perfluorosulfon...

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Bibliographische Detailangaben
Hauptverfasser: Wisser, Dorothea, Fu, Zongwen, Wachter, Sebastian, Bachmann, Julien, Laube, Armin, Weidlich, Claudia, Hofer, André, Körner, Carolin, Sánchez Batalla, Beatriz, Fischer, Simon, Struckmann, Thorsten
Format: Patent
Sprache:eng
Schlagworte:
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:A method (500) for conditioning or hydrolysis of an extruded membrane is disclosed. The method (500) comprising ion exchange processes in divided electrochemical cells using a cation exchanger membrane. The method (500) includes extruding the perfluorosulfonyl fluoride membranes from perfluorosulfonyl fluoride granulate. The method (500) also includes using a pretreatment technique to increase the ionic conductivity of the extruded perfluorosulfonyl fluoride membranes before using the perfluorosulfonic acid membranes in electrolysis cells. The method (500) also includes applying a milder pretreatment technique by activating S-F bonds to execute nucleophilic exchange of the fluoride group in a reaction. The method (500) also includes hydrolyzing sulfonyl fluoride groups to sulfonic acid using triethylsilanol.