Electrochemical production of peroxopyrosulphuric acid using diamond coated electrodes

US6855242B1 · kind B1 · utility

Assignees

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US
• CSME · DE

Inventors

• Christos Comninellis · Prilly, CH
• Pierre A. Michaud · Lausanne, CH
• Werner Hänni · Neuchâtel, CH
• Andre Perret · Neuchâtel, CH
• Matthias Fryda · Braunschweig, DE

Key dates

• Filing date: Oct 4, 2000
• Grant date: Feb 15, 2005
• Expiry date: Nov 16, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C25B1/29
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for the electrochemical production of peroxo-disulfuric acid and peroxo-disulfates is provided. In the process, an anode having a partially pre-polarized electrode which has been provided with a doped diamond layer is used.