Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1986-11-04
1987-11-10
Andrews, R. L.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
204 96, 204115, 204 21, 429228, C22B 1900
Patent
active
047055642
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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Andrews R. L.
Howard Dan R.
The Dow Chemical Company
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