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Hydrogen-assisted electrolysis processes

  • US 20040011662A1
  • Filed: 03/13/2003
  • Published: 01/22/2004
  • Est. Priority Date: 03/15/2002
  • Status: Active Grant
First Claim
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1. A process for reducing in an electrolytic cell an ionic alkali metal compound, said cell containing anode and cathode compartments, comprising supplying said alkali metal compound in molten form to at least the cathodic compartment in the electrolytic cell, at least said cathodic compartment being substantially free of water, said anodic and cathodic compartments being separated by a membrane which is permeable to alkali metal ions but is not permeable to water and water vapor, applying an electric voltage to said cell to reduce said alkali metal compound at said cathode, and passing hydrogen or a hydrogen containing gas in the anode compartment while said compound is reduced at the cathode.

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