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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Alumina & Bauxite
Presentation Title Industrial Implementation Characteristics of Aluminates Liquor Low-temperature Desilication Technology
Author(s) Vadim A. Lipin
On-Site Speaker (Planned) Vadim A. Lipin
Abstract Scope Low-temperature desilication process was investigated during alkali aluminosilicate raw materials treatment by industrial production of alumina by sintering method. Nepheline concentrate was used as seed for desilication. During investigation the temperature was changed from 85 to 100 C and seeding from 9.6 to 31.0 kg/m3. Accomplishment of desilication at the first stage with use of nepheline concentrate as seed reduces steam consumption for the desilication process and allows to simplify the equipment decision in comparison with autoclave conditions. However, when the non autoclave desilication is applied, the amount of solid phase in a state of circulating slurry substantially increases and containes up to 30 % of the liquid phase in the form of desilicated liquor. The best results were achieved at temperatures close to the maximum and amount of seed more than 20 kg/m3.
Proceedings Inclusion? Planned: Light Metals Volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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