PROCEDIMENTO DI FABBRICAZIONE DI UNA SOLUZIONE ACQUOSA DI IDROSSIDO DI SODIO

Production of an aqueous solution of sodium hydroxide from electrodialysis of sodium carbonate in an electrodialysis cell with three compartments is claimed. A solution of sodium carbonate is introduced in one compartment of the cell delimited between two cationic membranes. An acid is added to one...

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1. Verfasser:	POSAR FRANCESCO
Format:	Patent
Sprache:	ita
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:	Production of an aqueous solution of sodium hydroxide from electrodialysis of sodium carbonate in an electrodialysis cell with three compartments is claimed. A solution of sodium carbonate is introduced in one compartment of the cell delimited between two cationic membranes. An acid is added to one compartment delimited between one of the cationic membranes and a cationic side of a bipolar membrane. An aqueous solution of sodium hydroxide of a compartment adjacent to the anionic side of the bipolar membrane is then extracted.