Direct Electrochemical Reduction of Titanium-Bearing Compounds to Titanium-Silicon Alloys in Molten Calcium Chloride
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Xingli Zou
Abstract
Titanium-silicon alloys have been electrochemically extracted from the multi-component titanium-bearing compounds in molten calcium chloride electrolyte. Sintered pressed pellets of titanium-bearing compounds served as the cathode, and the electrochemical experiments were carried out systematically at 900 °C, 3.1 V and 1000 °C, 3.8 V using a graphite-based anode and an improved solid oxide oxygen-ion-conducting membrane (SOM)-based anode, respectively. The mineral composition and morphology of the obtained products were examined. The current features and the reaction mechanisms of the electrochemical reduction process are discussed. Comparisons between the graphite- and SOM-based anode systems are also carried out, and the results show that the improved SOM-based anode electrolysis system exhibits higher current efficiency and reduction rate than the graphite-based anode electrolysis system. Electrolysis of about 1.5 g titanium compounds using the SOM-based anode system can be finished within 6 h, and the current efficiency reaches approximately 50%.
©[2013] by Walter de Gruyter Berlin Boston
Articles in the same Issue
- Masthead
- Effect of Some Lubricants on the Flow Characteristics of ‘EPDM’ Rubber Under Compressive Load
- Friction Stir Welds of AA6351-T6 and AA2024-T6 Dissimiler Aluminium Alloys
- Effect of Welding Parameters on Pitting Corrosion Rate in 3.5N NaCl of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets
- An Investigation of Flank Wear Land Inclination in Orthogonal Machining
- Modeling of Radial Over Cut in Electrochemical Machining of Al-B4C MMC Using Response Surface Methodology
- Fundamental Research on a Rational Steelmaking Slag Recycling System by Phosphorus Separation and Collection
- KTH Steel Scrap Model – Iron and Steel Flow in the Swedish Society 1889–2010
- Direct Electrochemical Reduction of Titanium-Bearing Compounds to Titanium-Silicon Alloys in Molten Calcium Chloride
- In Situ Observation of the Evolution of Intragranular Acicular Ferrite at Mg-containing Inclusions in 16Mn Steel
- The Physical Properties of Slags for Electro-slag Remelting in CaF2-CaO-Al2O3-SiO2 System
- Freeze-lining Formation and Microstructure in a Direct-to-blister Flash Smelting Slag
- The Mechanism of Dross Formation during Hot-dip Al-Zn Alloy Coating Process
- Solidification Behaviour of Slags: The Single Hot Thermocouple Technique
- Investigation of Continuous Casting Slag Films Sampled on Site and Comparison with Laboratory Results
- Thermal Conductivity of R-Na2O-SiO2 (R = Al2O3, CaO) Melts
- Investigation of Blowing High Silicon Hot Metal by Double Slag Process
- An Investigation of Electro-deoxidation Process for Producing Titanium from Dense Titanium Dioxide Cathode
- Interaction between Molten Steel, Alumina Lining Refractory and Slag Phase
Articles in the same Issue
- Masthead
- Effect of Some Lubricants on the Flow Characteristics of ‘EPDM’ Rubber Under Compressive Load
- Friction Stir Welds of AA6351-T6 and AA2024-T6 Dissimiler Aluminium Alloys
- Effect of Welding Parameters on Pitting Corrosion Rate in 3.5N NaCl of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets
- An Investigation of Flank Wear Land Inclination in Orthogonal Machining
- Modeling of Radial Over Cut in Electrochemical Machining of Al-B4C MMC Using Response Surface Methodology
- Fundamental Research on a Rational Steelmaking Slag Recycling System by Phosphorus Separation and Collection
- KTH Steel Scrap Model – Iron and Steel Flow in the Swedish Society 1889–2010
- Direct Electrochemical Reduction of Titanium-Bearing Compounds to Titanium-Silicon Alloys in Molten Calcium Chloride
- In Situ Observation of the Evolution of Intragranular Acicular Ferrite at Mg-containing Inclusions in 16Mn Steel
- The Physical Properties of Slags for Electro-slag Remelting in CaF2-CaO-Al2O3-SiO2 System
- Freeze-lining Formation and Microstructure in a Direct-to-blister Flash Smelting Slag
- The Mechanism of Dross Formation during Hot-dip Al-Zn Alloy Coating Process
- Solidification Behaviour of Slags: The Single Hot Thermocouple Technique
- Investigation of Continuous Casting Slag Films Sampled on Site and Comparison with Laboratory Results
- Thermal Conductivity of R-Na2O-SiO2 (R = Al2O3, CaO) Melts
- Investigation of Blowing High Silicon Hot Metal by Double Slag Process
- An Investigation of Electro-deoxidation Process for Producing Titanium from Dense Titanium Dioxide Cathode
- Interaction between Molten Steel, Alumina Lining Refractory and Slag Phase
