Author(s)

G. Sarsenbay, L. A. Myltykbaeva, R. A. Abdulwalyev, S. B. Satylganova

Center of Earth Sciences, Metallurgy and Ore Beneficiation, JSC, Science and Education Ministry of the Republic of Kazakhstan.

objects of the research are Kazakhstan’s Turgay clay, studied of method for alumina and potassium metasilicate obtaining from Turgay sub-standard aluminum raw materials. Concluded that optimal conditions for the process of Turgay clay: reaction temperature 100°C, original solution K₂O concentration to 300 g/dm³, reaction time 120 min, liquid-solid ratio of 3:1; optimized the conditions of digestion alumina concentrate: original Na₂O solution concentration of 400 g/dm³, temperature 280°C, molar ratio CaO : SiO₂ = 1. Recovery is 99.6 % of alumina digestion under this condition; crystallized solid phase components as Na₂O·Al₂O₃·6H₂O sodium hydroaluminate crystals. Extracted of alumina from solution of sodium hydroaluminate

Potassium Hydroxide Solution; Leaching; Clay; Alumina Concentrate; Sodium Aluminate Solution; Digestion; Desilication; Alumina

G. Sarsenbay, L. Myltykbaeva, R. Abdulwalyev and S. Satylganova, "The Study of Method for Complex Processing Turgay Sub-Standard Aluminum-Containing Raw Materials," Advances in Materials Physics and Chemistry, Vol. 2 No. 4B, 2012, pp. 216-220. doi: 10.4236/ampc.2012.24B055.