Eltech Systems Corporation

Orbisphere Laboratories, Inc.

Dan Gagescu

Douglas J Wheeler

Ajit Y Sane

Jean-Pierre Derivaz

Iudita L Adorian

Pierre E Debely

A method of regenerating a membrane-enclosed amperometric or Clark cell having an operative current range for electroanalytical operation limited by a maximum current density of typically not more than 100 .mu.A/cm.sup.2 at the working electrode by subjecting at least one of the probe electrode in contact with a regeneration electrolyte, while the membrane is removed, to a regeneration current for causing a current density in the range of from about 1 to about 1000 mA/cm.sup.2 which is substantially higher, e.g. by a factor of at least 10 and preferably at least 100, than the maximum current density in electroanalytical operation. The device for use in this method comprises an enclosure having a lower end and an upper end; the lower end is sealingly closed by the sensing end of the probe; the device comprises a regenerator electrode external to the probe arranged within the enclosure to provide a space for holding a regeneration electrolyte in contact with the regenerator electrode and the probe electrodes; a lead connects the regenerator electrode with a current source having a second outlet connected with at least one of the probe electrodes.

Regeneration method and device

A component for an aluminum production cell comprising a refractory matrix having a rigid porous structure substantially filled with aluminum.

Aluminum production cell components

Growing community of inventors

Petit-Lancy, Switzerland

Dan Gagescu