Aluminum reference electrode
Abstract
A stable reference electrode is described for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na[sub 3]AlF[sub 6], wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution. 1 fig.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7067429
- Patent Number(s):
- 4764257
- Application Number:
- PPN: US 6-783776
- Assignee:
- Massachusetts Inst. of Tech., Cambridge, MA (United States)
- DOE Contract Number:
- FG07-83ID12380
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 3 Oct 1985
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ALUMINIUM COMPOUNDS; ELECTROLYSIS; REDUCTION; ELECTRODES; DESIGN; ELECTROLYTIC CELLS; MONITORING; ON-LINE MEASUREMENT SYSTEMS; CHEMICAL REACTIONS; LYSIS; ON-LINE SYSTEMS; 440800* - Miscellaneous Instrumentation- (1990-); 320303 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes
Citation Formats
Sadoway, D R. Aluminum reference electrode. United States: N. p., 1988.
Web.
Sadoway, D R. Aluminum reference electrode. United States.
Sadoway, D R. Tue .
"Aluminum reference electrode". United States.
@article{osti_7067429,
title = {Aluminum reference electrode},
author = {Sadoway, D R},
abstractNote = {A stable reference electrode is described for use in monitoring and controlling the process of electrolytic reduction of a metal. In the case of Hall cell reduction of aluminum, the reference electrode comprises a pool of molten aluminum and a solution of molten cryolite, Na[sub 3]AlF[sub 6], wherein the electrical connection to the molten aluminum does not contact the highly corrosive molten salt solution. This is accomplished by altering the density of either the aluminum (decreasing the density) or the electrolyte (increasing the density) so that the aluminum floats on top of the molten salt solution. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}
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