Alcoa USA Corp.

Elysis Limited Partnership

Douglas A Weirauch

Robert A DiMilia

Xinghua Liu

Frankie E Phelps

Joseph M Dynys

Jonell Kerkhoff

Robert A Dimilia

Lance M Sworts

Brian J Tielsch

Jeff Ward

Jonell M Kerkhoff

Compositions for making wettable cathodes to be used in aluminum electrolysis cells are disclosed. The compositions generally include titanium diboride (TiB) and metal additives. The amount of selected metal additives may result in production of electrodes having a tailored density and/or porosity. The electrodes may be durable and used in aluminum electrolysis cells.

Composition for making wettable cathode in aluminum smelting

A system is provided including an electrolysis cell configured to retain a molten electrolyte bath, the bath including at least one bath component, the electrolysis cell including: a bottom, and a sidewall consisting essentially of the at least one bath component; and a feed material including the least one bath component to the molten electrolyte bath such that the at least one bath component is within 30% of saturation, wherein, via the feed material, the sidewall is stable in the molten electrolyte bath.

Systems and methods of protecting electrolysis cell sidewalls

A system is provided including an electrolysis cell configured to retain a molten electrolyte bath, the bath including at least one bath component, the electrolysis cell including: a bottom, and a sidewall consisting essentially of the at least one bath component; and a feeder system, configured to provide a feed material including the least one bath component to the molten electrolyte bath such that the at least one bath component is within 2% of saturation, wherein, via the feed material, the sidewall is stable in the molten electrolyte bath.

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State College, PA, United States of America

Douglas A Weirauch