Alcoa Inc.

Alton T Tabereaux

Xiangwen Wang

Jerry L Roddy

Mark F Walker

Eric Groat

Guy L Fredrickson

Thomas Mroz

Alain J Belda

Alan Ulicny

A self-baking, Soderberg type carbon anode () for use in an aluminum electrolyses cell () to form product aluminum (), where the anode () is consumable in molten electrolyte () in the cell, the anode having top, bottom and side surfaces and at least four layers of vertically disposed plate inserts () meltable in the molten electrolyte, the plate inserts () preferably made of aluminum and are capable of melting to create hollow vertical slots () at the bottom of the anode facilitating any gas bubbles () generated to channel to the side of the anode into the electrolyte ().

Method for reducing cell voltage and increasing cell stability by in-situ formation of slots in a Soderberg anode

An electrolytic cell for the reduction of aluminum having a layer of interlocking cathode tiles positioned on a cathode block. Each tile includes a main body and a vertical restraining member to prevent movement of the tiles away from the cathode block during operation of the cell. The anode of the electrolytic cell may be positioned about 1 inch from the interlocking cathode tiles.

Interlocking wettable ceramic tiles

Growing community of inventors

Muscle Shoals, AL, United States of America

Alton T Tabereaux