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V. V. Radko
V. V. Radko
Saint Petersburg State Mining University
Saint Petersburg State Mining University

Articles

Metallurgy, physical and chemical regularities of technological processes
  • Date submitted
    2011-08-30
  • Date accepted
    2011-10-22
  • Date published
    2012-02-01

Adsorption and its influence on the mechanism of alumina liquor precipitation

Article preview

The materials of mass transfer kinetic analysis of complicated by the establishment of adsorption equilibrium, during alumina liquor precipitation of alumina production. It is shown that the presence of strongly adsorbing impurities is one of the determinants of the intensity of the aluminum hydroxide chemical precipitation. The results of experimental studies on the alumina liquor precipitation with the participation of adsorption active components.

How to cite: Radko V.V., Brichkin V.N., Nikolaeva N.V., Gordyushenkov E.E. Adsorption and its influence on the mechanism of alumina liquor precipitation // Journal of Mining Institute. 2012. Vol. 196. p. 142.
Innovation technology in the field of metallurgy and enrichment
  • Date submitted
    2010-10-23
  • Date accepted
    2010-12-06
  • Date published
    2011-04-01

The effect of degree of metastable solutions оn mass crystallization kinetics

Article preview

The materials of the pilot study, which establishes the dependence of the kinetics of mass crystallization of aluminum hydroxide on the extent of metastable alkaline aluminate solutions. Shown that changes in the level of metastability of the environment of crystallization is the lag in time from changes in state parameters of physico-chemical system. The theoretical a justification of the transition from one level of the metastable state to another due to time constraints, changing the structure of unstable solutions.

How to cite: Brichkin V.N., Novikov N.A., Radko V.V., Vasilev V.V. The effect of degree of metastable solutions оn mass crystallization kinetics // Journal of Mining Institute. 2011. Vol. 192. p. 39.
Metallurgy
  • Date submitted
    2009-08-10
  • Date accepted
    2009-10-21
  • Date published
    2010-02-01

Precipitation of alumina liquor inclusive potassium

Article preview

The materials of experimental research on alumina liquor precipitation kinetics in system Na 2 O – K 2 O – Al 2 O 3 – H 2 O using carbonated alumina hydroxide as a seed are presented. Particle size distribution (PSD) analyses of settling products are given. Correlation link of alumina liquor decomposition degree and average median diameter of received aluminum hydroxide are shown.

How to cite: Radko V.V. Precipitation of alumina liquor inclusive potassium // Journal of Mining Institute. 2010. Vol. 186. p. 200.