Thermal behavior of dawsonite
Thermal behavior of dawsonite
Evidence for the dawsonite decomposition reaction sequence is presented. Synthetic dawsonite was heated at temperatures from 250 to 800/sup 0/C and studied by X-ray powder diffraction and infrared spectroscopy. From 350 to 550/sup 0/C sodium carbonate and a low temperature form of alumina were the main products. Hydrolysis experiments showed that this heretofore unidentified alumina product is rho-alumina. At temperatures of 600/sup 0/C and above, the sodium carbonate and rho-alumina react in an incomplete solid state reaction to form crystalline sodium aluminate.
- University of North Texas System United States
04 Oil Shales And Tar Sands, Aluminium Compounds, Fossil Fuels, Alkali Metal Compounds, Thermodynamic Properties, Waste Product Utilization, Carbonates, Scattering, X-Ray Diffraction, Recovery, Information, Hydroxides, Aluminium, Data Forms, Dawsonite, Minerals, Data, Chemical Reactions, Spectra, Aluminates, Elements, Sodium Compounds, Numerical Data, Metals, Shales, Coherent Scattering, Experimental Data, Thermal Degradation, Thermochemical Processes 040600* -- Oil Shales & Tar Sands-- Products & By-Products, Oxygen Compounds, Diffraction, Pyrolysis, Rocks, Oil Shales, Infrared Spectra, Carbonaceous Materials, Bituminous Materials, Fuels, Sodium Carbonates, Spent Shales, Hydrogen Compounds, Decomposition, Sodium Minerals, Carbon Compounds, Physical Properties, Sedimentary Rocks, Energy Sources, Tables
04 Oil Shales And Tar Sands, Aluminium Compounds, Fossil Fuels, Alkali Metal Compounds, Thermodynamic Properties, Waste Product Utilization, Carbonates, Scattering, X-Ray Diffraction, Recovery, Information, Hydroxides, Aluminium, Data Forms, Dawsonite, Minerals, Data, Chemical Reactions, Spectra, Aluminates, Elements, Sodium Compounds, Numerical Data, Metals, Shales, Coherent Scattering, Experimental Data, Thermal Degradation, Thermochemical Processes 040600* -- Oil Shales & Tar Sands-- Products & By-Products, Oxygen Compounds, Diffraction, Pyrolysis, Rocks, Oil Shales, Infrared Spectra, Carbonaceous Materials, Bituminous Materials, Fuels, Sodium Carbonates, Spent Shales, Hydrogen Compounds, Decomposition, Sodium Minerals, Carbon Compounds, Physical Properties, Sedimentary Rocks, Energy Sources, Tables
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