End-box for mercury cathode alkali chloride electrolysis cell
AssigneeIndustrie De Nora S.P.A.
InventorsGiovanni Meneghini, Raffaello Bertin
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Abstract
There is disclosed an inlet and outlet end-box design for mercury cathode chlor-alkali electrolysis cells of extended lifetime, comprising a composite mechanical structure consisting of a carbon steel bottom entirely supporting the mechanical solicitations, a plastic cover, and a hydraulic head device for washing the mercury and the amalgam. The device is partially extractable thereby allowing the withdrawal of foreign materials accumulated during operation with no need for opening the end-boxes.
Claims12
End box for a mercury cathode cell for alkali chloride brine electrolysis, provided in an operative condition with a brine level and a mercury or amalgam level, comprising a device for contacting the mercury or amalgam with water, the device being formed by an internal duct for feeding the water and an external duct equipped with a bellows and having a first and a second flange secured by bolting to a terminal flange, the external duct being partially extractable and having a lower extremity immersed in the mercury or amalgam, thereby establishing a hydraulic head.
Dependencies are inferred from the claim text.