VERFAHREN ZUR STUFENWEISEN ELEKTRODIALYSE VON ALKALISULFATHAELTIGEN WAESSERIGEN LOESUNGEN SOWIE VORRICHTUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

For the stepwise electrodialysis of aqueous solutions containing alkali metal sulphate, these solutions being passed through a plurality of electrodialysis cells which operate in series and have an acid chamber and base chamber and include a cation exchanger membrane, the aqueous solutions containin...

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Bibliographische Detailangaben
Hauptverfasser:	VERWANGER ARNOLD, BOXAN CHRISTOPH DR, SCHMIDT HEINRICH DR, SALIM JAMAL, KALLEITNER HANS, HOLZINGER REINHARD
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS THEREOF ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	For the stepwise electrodialysis of aqueous solutions containing alkali metal sulphate, these solutions being passed through a plurality of electrodialysis cells which operate in series and have an acid chamber and base chamber and include a cation exchanger membrane, the aqueous solutions containing alkali metal sulphate are passed exclusively through acid chambers of the electrodialysis cells which, in their interior, exclusively include cation exchanger membranes and are bounded by bipolar ion exchanger membranes. The invention allows improved electrodialytic processing of solutions containing alkali metal sulphate, such as are obtained in the production of regenerated cellulose by the xanthate process.