Superdeep desiliconization aluminate solution based on calcium hydrocarboaluminates
- 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (University of Mines)
- 2 — post-graduate student National Mineral Resources University (University of Mines)
- 3 — Ph.D. assistant lecturer National Mineral Resources University (University of Mines)
Abstract
The results of laboratory studies on super deep desilication of alumina liquors based on hidrocarboalyuminat calcium supplements 4CaO×Al2O3×0,5CO2×11H2O in advance of entering into the process of working hydrogranat sludge. Obtained qualitatively new alumina liquors with a silicon module (weight ratio Al2O3 / SiO2) of 50000 units. Impact of type-ahead hydrogranat sludge to a desilication depth given from the viewpoint of heterogeneous catalysis. The results obtained can be used to solve the problem of diversification of production in the complex processing of phosphogypsum in the synthesis calcium hydrocarboaluminates on the basis of fosfomel.
References
- Brichkin V.N. Processes of mass crystallization from solutions in the production of alumina / V.N.Brichkin, V.M. Sizyakov. Saint Petersburg, 2005. P.134.
- Sizjakov V.M. Synthesis of calcium hydrocarboaluminates in the CaCO3 – NaAl(OH)4 – NaOH ̇H2O system / V.M.Sizyakov, E.V.Sizyakova, A.A.Volkova. Siberiannonferrous metals. Krasnojarsk, 2010. P.379- 383.
- Sizjakov V.M. Theory and practice of desiliconizationof aluminate solutions. Мoscow, 1971.
- Sizjakov V.M. On the stability of various gidro granatov and tricalcium gidroalyuminata in sodium hydroxide solution at 30-40 0C / V.M.Sizyakov, M.N.Smirnov // Nonferrous metals. 1969. No 6. P.56-59.
- Sizjakov V.M. Some reasons for different stability gidrogranatov and tricalcium gidroalyuminata in solutions of sodi um hydroxide / V.M.Sizyakov, M.G.Smirnov // Nonferrous metals. 1969. No 10. P.47-50.
- Sizjakov V.M. Development of technology of complex processing of large-scale waste fertilizer to produce commodity products of multi-purpose // The catalog of innovative developments in the primacy of the direction of «Environmental management». Moscow, 2011. Issue 5. P.56- 60.