Thermodynamic analysis of aluminium hydroxide calcination at alumina production
About authors
- 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
- 2 — Ph.D., Dr.Sci. professor North-Caucasus Mining and Metallurgy Institute (state technological university)
Abstract
The thermodynamic analysis of aluminium hydroxide dehydration during calcination process at alumina production is carried out. The calcination of aluminium hydroxide is possible at ordinary pressure and temperature value more than 600 K. Diaspor dehydration process is possible by way of freezeout of water as an ice, water rendering or heating till decomposition temperature.
Область исследования:
(Archived) Without section
Funding:
None
References
- Voropanova L.A., Baratov L.G., Kovalev V.N. The dehydration of zinc hydroxide sediment, which obtained in process of neutralization with ammonium water solution of less concentrated solutions of zinc sulfate // Journal of applied chemistry (Russian edition). 2010. Vol.83. Is.11.
- Karapet’yanc M.H., Karapet’yanc M.L. The main thermodynamic constant of inorganic and organic compounds. Moscow. 1968.
- Sort handbook of physical-chemical dates / Ed. A.A.Ravdel, A.M.Ponomareva. Leningrad. 1983.
- Chelischev E.V., Arsent’ev P.P., Yakovlev V.V.,Ryzhonkov D.I. Metallurgy of ferrous and non-ferrous metals. Moscow. 1993.
- Pat.2393249 RF. С22В 19/34, 3/44, С02F 1/62. The method of obtaining of zinc oxide from sulfuric acid solution / L.G. Baratov, L.A. Voropanova. Publ. 27.06.10. Bul. N 18.
- Rabinovuch V.A., Havin P.Ya. Sort handbook of chemical dates. Leningrad, 1991.
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