Amalgam decomposer for mercury cathode cells for alkali chloride electrolysis
AssigneeIndustrie De Nora S.P.A.
InventorsGiovanni Meneghini, Raffaello Bertin
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Abstract
The invention relates to an amalgam decomposer for mercury cathode chlor-alkali cells. The amalgam decomposer of the invention contains a filling of carbon steel rings whose external surface is provided with a catalytic coating for amalgam decomposition consisting of one or more electrically conductive metals carbides. The internal surface of the rings is free of catalytic coating and wettable by the amalgam, while the external carbide catalytic coating is not wettable by the amalgam thereby favoring hydrogen evolution.
Claims13
An amalgam decomposer for mercury cathode-type electrolytic cells, comprising, a vertical vessel provided with an internal catalytic filling for decomposing the amalgam generated inside the cell with water, the filling comprising a multiplicity of amalgam-wettable metallic elements whose surface is partially uncoated and partially provided with a catalytic coating, the catalytic coating being non-wettable by the amalgam.
Dependencies are inferred from the claim text.