What Goes Around Comes Around: Fluorine to Electrochemical Fluorination to Fluorine

摘要

In response to a need for significantly cheaper fluorine we at 3M developed a new technology that included: 1. External vertical collection channels that port the fluorine away from the surface to enhance the electrolyte/anode contact and essentially eliminate "polarization". 2. A stable (>8000 hours) internal copper conductor that minimized joulian heating and carbon degradation. 3. Stable (>8000 hours)connections. 4. 2000 Ampere anodes that ran routinely at 200 ma/cm~2. This technology grew from Rudge's porous carbon anodes for fluorine and the Phillips ECF technology.