Flow-through electrolytic cell

Chemistry: electrical and wave energy – Processes and products

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Details

204 72, 204 73R, 204 80, C25B 302, C25B 304

Patent

active

046891242

ABSTRACT:
A flow-through electrochemical cell for sequentially oxidizing and reducing an aryl compound. The cell includes a cell body forming a compartment to hold an aqueous electrolyte solution, a porous anodic electrode, and a porous cathodic electrode. The anodic electrode includes a first porous layer of a hydrophobic material, a second porous layer with an oxidation catalyst dispersed therein, and a current collector in electrical contact with the second layer. The cathodic electrode comprises a block of a porous, electrically-conductive material impregnated with lead particles. The cell is particularly useful for the preparation of aryl hydroquinones at very high current efficiencies, high current densities, and low voltages.

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