Patent classifications
B
B01
B01J
31/00
B01J31/40
B01J31/4015
B01J31/4076
B01J31/4076
ELECTROCHEMICAL RECYCLING OF HOMOGENEOUS CATALYSTS
20240352610
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2024-10-24
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Herein disclosed is a new electrochemical approach to catalyst capture and recycling that overcomes conventional industrial recovery methods using functionalized redox-polymer electrodes. This technology provides a redox electro-separation system comprising polyvinylferrocene that was able to capture platinum group metal based catalysts directly from products and transfer to fresh reactants achieving 99.5% recovery without disturbing catalyst activity. Several reactions were tested along with various solvent-electrolyte matrices, showing >99% recovery efficiencies for platinum species as low as 1.6 ppm.