Process for preparing perfluorinated organic compounds by electrochemical fluorination

US6395165B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Andreas Bulan · Langenfeld, DE
• Joachim Herzig · Leichlingen, DE
• Gunter Lailach · Krefeld, DE

Key dates

• Filing date: Jun 22, 2001
• Grant date: May 28, 2002
• Expiry date: Jun 22, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/74
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A novel process for the continuous preparation of perfluorinated organic compounds by electrochemical fluorination of the parent non-fluorinated or partially fluorinated organic compounds using hydrogen fluoride having an arsenic content of less than about 10 ppm can be operated over a prolonged period of time without the electrode area-time yield decreasing over time.