VERFAHREN ZUR HERSTELLUNG VON ALKALIMETALL- HYDROXIDEN

Process for the manufacture of alkali metal hydroxide, according to which an electrodialysis cell containing three compartments is used, an aqueous solution of alkali metal halide is circulated in a saline compartment of the cell, bounded between an anionic membrane and a cationic membrane, an alkal...

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Bibliographische Detailangaben
Hauptverfasser:	NICOLAS, EDGARD, BIGINI, STEFANO, BOTTE, LUC, POSAR, FRANCESCO
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	Process for the manufacture of alkali metal hydroxide, according to which an electrodialysis cell containing three compartments is used, an aqueous solution of alkali metal halide is circulated in a saline compartment of the cell, bounded between an anionic membrane and a cationic membrane, an alkali metal halide is introduced into an acidic compartment of the cell, bounded between the anionic membrane and a cationic face of a bipolar membrane and an aqueous solution of alkali metal hydroxide is extracted from an alkaline compartment of the cell, bounded between the cationic membrane and an anionic face of the bipolar membrane.