By Tao Jiang, Jiann-Yang Hwang, Phillip J. Mackey, Onuralp Yucel, Guifeng Zhou
Within the final decade, worldwide metallurgical industries have skilled speedy and wealthy progress. extreme temperature metallurgical expertise is the spine to help the technical, environmental, and reasonable wishes for the growth.
This symposium offers a degree to introduce the developments and advancements of latest hot temperature metallurgical applied sciences and their functions to the components of processing of minerals, extraction of metals, guidance of refractory and ceramic fabrics, sintering and synthesis of good debris, therapy and recycling of slag and wastes, and saving of strength and security of environment.Content:
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Al(OH\ v_ JL> 10 20 30 40 50 60 70 80 00 2eC ) Fig. 9 Product Fig. 9-10 is the appearance and phase analysis of carbonation precipitation product. The chemical constitutions and whiteness results are shown in Table II. 1 The results show that the main phase in product is Al(OH)3. The chemical constitutions and whiteness are suit for the standard of high-whiteness Al(OH)3 in China. Conclusions A novel aluminothermic reduction lithium process was developed, which used Li2CC>3, AI2O3 and CaO as raw materials, and aluminum powder as reductant.
1 can be obtained after carbonation precipitation of the sodium aluminate solution. 16 References 1. Georges J. Kipouros, Donald R, Sadoway, "Toward new technologies for the production of lithium", JOM, 50(5) (1998), 24-26. 2. , "Global lithium industry: aportrait of rapid flux", JOM, 49(6) (1997), 21-22. 3. Nicholson Piers, Evans Keith, "Evaluating new directions for the lithium market", JOM, 50(5) (1998), 27-29. 4. P. , "Lithium-Metal of the future", JOM, 38(11) (1986), 20-26. 5. Smeets A A J, Fray D J, "Extraction of Lithium by Vacuum Thermal Reduction with Aluminium and Silicon".
21 It seemed that the process related to removal and solidification of sulfur and arsenic were under the control of chemical reactions. When the temperature increased, reaction ratios of chemical reactions also got increasement, so did removal and solidification ratios of sulfur and arsenic. Moreover, liquid phase was likely to be generated at 700 °C. The melting phenomenon had bad effect on the process of mass transferring such as 0 2 . Effect of Package Proportion Package proportion means the mass ratio of coat layer to inner pellet.