Electrolysis cell, especially for electrochemical production of chlorine

US7329331B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Andreas Bulan · Langenfeld, DE
• Fritz Gestermann · Leverkusen, DE
• Manfred Marre
• Walter Hansen · Cold Spring Harbor, US
• Michael Großholz · Leverkusen, DE

Key dates

• Filing date: Sep 19, 2002
• Grant date: Feb 12, 2008
• Expiry date: Jun 23, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25B9/63
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

An electrolysis cell, suitable for the electrochemical production of chlorine from aqueous solutions of hydrogen chloride. The cell preferably comprises an anode space formed from an anode, an anode frame, and a back wall, the anode frame supporting the anode, and the anode space having an inlet and an outlet for the electrolyte, a cathode space formed from a current collector. The cell further preferably comprises a cathode frame and a back wall, the cathode frame supporting the current collector and the cathode space having an inlet and an outlet for the gas, a gas diffusion electrode arranged between anode and current collector and an cation exchange membrane arranged between anode and gas diffusion electrode, wherein the gas diffusion electrode is fixed on the current collector.