Electrolytic cell

US6402910B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Hermann Putter · Neustadt, DE
• Günther Huber · Munich, DE
• Luise Spiske · Seeheim-Jugenheim, DE
• Hans Stark · Lennep, DE
• Dieter Schlafer · Ludwigshafen, DE
• Gerhard Pforr · Ludwigshafen, DE

Key dates

• Filing date: May 9, 2000
• Grant date: Jun 11, 2002
• Expiry date: May 9, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25B1/24
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for preparing sodium and aluminum chloride electrochemically is described in which, in an electrolytic cell containing aluminum as an anode and sodium as a cathode which are separated from one another by a sodium ion-conducting solid electrolyte, a fused electrolyte essentially containing sodium tetrachloroaluminate is electrolyzed in the anode compartment, aluminum chloride formed in this process is evaporated from the electrolytic cell and sodium is removed from the cathode compartment.