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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Alumina & Bauxite
Presentation Title Reaction Behavior and Conversion of Anatase in Alumina Production Process with Calcification-carbonization Method
Author(s) Wang Yanxiu, Zhang Ting'an, Lv Guozhi, Zhu Xiaofeng, Zhang Weiguang
On-Site Speaker (Planned) Zhang Ting'an
Abstract Scope Reaction behaviors of anatase conversion in the calcification-carbonization process were investigated experimentally in the pure substance systems of Na2O-Al2O3-CaO-TiO2-H2O and Na2O-Al2O3-SiO2-CaO-TiO2-H2O. The calcification experiments were conducted respectively in the digestion conditions of diasporic and gibbsite. In calcification process, with temperature increasing, anatase converts to firstly Ca3TiSi2(Al2Si0.5Ti0.5)O14 and then CaTiO3. The increase of sodium aluminate solution concentration and additive TiO2-SiO2 ratio can promote this conversion. In carbonization process, CO2 can’t make CaTiO3 decompose. CaTiO3 is the the most stable titanate phase in calcification-carbonization process.
Proceedings Inclusion? Planned: Light Metals Volume


Alkalinity Precipitation Measurement on Carbonation of Bauxite Residue
An Improved Lime Sinter Process to Produce Al2O3 from Low-grade Al-containing Resources
Effect of Different Silica Mineral Compositions on the Digestion Results in Bayer Process
Effect of Lime Addition during Digestion on Stability of Digested Liquor of Diasporic Bauxite
Extraction of Alumina from the Magnetic Separation Tailings Derived from Reductive Roasting of Red Mud
Going FAR (Floating Alumina Refinery)
Industrial Implementation Characteristics of Aluminates Liquor Low-temperature Desilication Technology
Influence Factors of Stirring Speed of Self-stirring Tubular Reactor Used in Bauxite Digestion Process
Investigation of Flotation Behaviors of Refractory High Silica Bauxite
Leaching Kinetics for Recovering Alumina from Waste Tricalcium Aluminate Generated after Filtration of Bayer's Liquor
Reaction Behavior and Conversion of Anatase in Alumina Production Process with Calcification-carbonization Method
Research on Activated Alumina Obtained by Spray Pyrolysis Method
Study on Effective Extraction of Al and Fe from High-iron Bauxite through “Calcification-carbonization” Method
Study on the Influence of Chemical Additives during the Digestion of Bauxite
Sustaining Capital of Alumina Refinery Projects – Important but Unloved
Ways to Improve of Aluminium Content Raw Material Treatment by Sintering Method

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