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Vol 202
Pages:
48-55
Download volume:
RUS
Article

The role of mineralized additivies in the alumina phase transformation process

Authors:
V. M. Sizyakov1
O. A. Dubovikov2
N. V. Nikolaeva3
M. I. Kalashnikova4
About authors
  • 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
  • 2 — Ph.D. associate professor National Mineral Resources University (Mining University)
  • 3 — Ph.D. assistant lecturer National Mineral Resources University (Mining University)
  • 4 — Ph.D., Dr.Sci. head of laboratory «Gipronickel» Co
Date submitted:
2012-09-11
Date accepted:
2012-11-23
Date published:
2013-04-29

Abstract

The statistical analysis has allowed to reveal the additives essentially influencing process of formation of corundum. So, fluoric connections of sodium, calcium, aluminum, oxide of iron and chrome promote formation. Opposite influence is rendered oxide of sodium, by connections of lithium and a dioxide of the titan. Besides, influence of a dioxide of the titan and oxide of chrome is estimated.

Область исследования:
(Archived) Without section
Keywords:
extraction alumina bauxites desiliconization a method of casual balance
Funding:

None

Go to volume 202

References

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  2. Arljuk T.A., Teljatnikov G.V. About degradation of hydroxides of the aluminum, different in the way of reception // Nonferrous metals. 1977. N 8. P.44-47.
  3. Arljuk T.A., Teljatnikov G.V., Kuhotkina T.N. About the factors influencing for speed of crystallization of alumina // Works by VAMI. 1974. N 88. P.105-109.
  4. Gopienko G.N, Zavaritskaja T.A., Pashkevich L.A.Influence various mineralizer on formation α-Al2O3 from hydrargillite and boehmite // Nonferrous materials. 1970. N 4. P.53-55.
  5. Kalinina А.М. About polymorphism and thermal transformations of an oxide of aluminum // Materials of All-Union meeting on chemistry and technology of alumina. Novosibirsk, 1960. P.5-14.
  6. Naumchik A.N., Dubovikov O.A. Alumina manufacture. Leningrad, 1987. 99 p.
  7. Nalimov V.V., Chernova N.A. Statistical methods of planning of extreme experiments. Мoscow, 1965. 340 p.
  8. Ivanov A.I., Talko-Pobyvanej J.K., Klekl V.N,Golivkin N.I. The burning roasting of bauxites of Kursk magnetic anomaly // Nonferrous metallurgy. 1977. N 2. P.27-30.
  9. Tkach O.D., Onufrienok V.V. Influence of time of heat treatment of a hydroxide of aluminum on a surface of the turned out active oxides // MAC. 1979. N 52. Issue 1. P.30-33.
  10. Taichi Sato. Thermal Transformation of Alumina Trihidrate, Hydrargillite // Apll. Chem., 1964. Vol. 14. N 7. P.303-308.
  11. Pat.2235086 France.CO1F7/02. A way of reception by sintering active an alpha – aluminum oxides / B.Robert. Publ. 28.02.75.

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