Eltech Systems Corporation

Charles S Kuivila

Douglas J Wheeler

Ajit Y Sane

A method for rendering an aluminum electrowinning cell component fabricated from an aluminum nonwettable material wettable by molten aluminum, and therefore utilizable within the cell. Under the method, the component is coated with titanium and boron, and while the component is immersed in molten aluminum within the cell, the molten aluminum is maintained near saturation with boron and titanium.

Aluminum wettable materials for aluminum production

A method and apparatus for making a drained aluminum electrowinning cathode dimensionally stable. A thin, 1/2 to 10 millimeter coating of substantially stagnant molten aluminum is maintained upon the cathode surface by an openly porous sheath or membrane closely conforming to contours of the electrowinning cathode. The sheath or membrane is made from a material substantially resistant to corrosives present in the aluminum electrowinning; it may be only slightly aluminum wettable, but should be relatively electrically nonconductive.

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Evanston, IL, United States of America

Charles S Kuivila