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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Electrode Technology
Presentation Title Quantification of Sodium Present in Dry Aggregates and Anodes
Author(s) Julie Bureau, Duygu Kocaefe, Dipankar Bhattacharyay, Yasar Kocaefe, Brigitte Morais
On-Site Speaker (Planned) Julie Bureau
Abstract Scope In industry, it is important to determine the concentration of a contaminant as rapidly as possible, which may help adjust the proportion of anode constituents. In the case of sodium, it is well-known that it significantly influences the anode reactivity, and an increase in its concentration increases the anode consumption. A simple and inexpensive method was developed to quantify the sodium content in dry aggregates and anodes without grinding the samples. The method is based on potentiometric principles using a sodium-ion specific electrode. A sample can be analyzed easily within thirty minutes. In order to prevent the rapid degradation of the specific electrode due to experimental conditions, sodium is extracted from samples by electrophoresis prior to the test. The comparison shows that the measured sodium concentrations obtained are similar to the results determined by other test methods.
Proceedings Inclusion? Planned: Light Metals Volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anode Baking Furnace Fluewall Design Evolution: A Return of Experience of Latest Baffleless Technology Implementation
Cathode Wear in Electrowinning of Aluminum Investigated by a Laboratory Test Cell
Characterization of Carbon Anode Materials by Image Analysis
Copper Bars for the Hall-Héroult Process
Effect of Cathode Collector Copper Inserts on the Hall-Héroult Cell MHD Stability
Effect of Heating Rate during Baking on the Properties of Carbon Anodes Used in Aluminum Industry
Electrochemical Reactivity and Wetting Properties of Anodes Made from Anisotropic and Isotropic Cokes
Empirical Modeling of the Baking Furnace to Predict Baked Anode Properties
In Situ Investigation of the Behavior of Anode Assemblies
Interfacial Boundary between Carbon Anodes and Molten Salt Electrolyte
Journey towards World-Class Operational Effectiveness at DUBAL (EGA Jebel Ali Operations) Paste Plant
Low Resistance Anode Assembly Using Steel Stubhole Conductors across the Cast Iron to Carbon Interface
Measurement of the Electric Current Distribution in an Anode
MIREA: An On-line Quality Control Equipment Integration in an Operational Context
Modeling Gravity Wave in 3D with OpenFoam in an Aluminum Reduction Cell with Regular and Irregular Cathode Surfaces
Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium
Quantification of Sodium Present in Dry Aggregates and Anodes
Simulation-Based Decision Support in Cathode Relining Facility Scaling
Study of the Wetting of Coke by Different Pitches
The Start up & the Operation Performance of the Twin Green Anode Plant at Ma'aden Aluminium Smelter in Saudi Arabia
Uneven Cathode Wear in Aluminium Reduction Cells
Upgrade of the Firing and Control System at Egyptalum for Dual Fuel Firing

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