Anodic structure for mercury cathode electrolytic cells description of the invention
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United States of America Patent
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May 8, 2007
Grant Date -
Apr 22, 2004
app pub date -
Mar 27, 2002
filing date -
Mar 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Object of the invention is an anodic structure for mercury cathode cells for the industrial electrolysis of sodium chloride. The new structure is constituted by a grid array comprising a multiplicity of vertically disposed and mutually parallel titanium blades, covered by an electrocatalytic coating specific for the discharge of chlorine. The ratio between the thickness and the height of the blades is comprised between 1:16 and 1:100 and the ratio between the surface of free passage between the blades and the projected surface is comprised between 15:17 and 25:30. The new grid array is perpendicularly fixed to new or existing frames having the function of mechanical support and current conduction to the grid array. Scope of the invention is simultaneously reducing the energetic consumption of the cell and the costs for restoring the exhausted electrocatalytic coating.
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