Apparatus for determination of aluminum oxide content of the cryolite melt in aluminum electrolysis cells
US4639304A · kind A · utility
10Cited by
1References
2Claims
0Family size
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Key dates
| Filing date | Nov 1, 1985 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Nov 1, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4114
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analytical apparatus for determining the cryolite concentration in a cryolite-alumina electrolysis cell. The apparatus uses a reference electrode comprising a solid oxygen electrolyte tube containing a reference electrode of a cryolite melt supersaturated with alumina. A measuring electrode is combined with such a reference electrode to provide a potential representative of alumina concentration in the alumina electrolysis cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.