| Autor: |
Zablotskaya, Yu. V., Anisonyan, K. G., Sadykhov, G. B., Kop'ev, D. Yu., Litvinova, I. S. |
| Zdroj: |
Russian Metallurgy (Metally); Nov2023, Vol. 2023 Issue 11, p1583-1589, 7p |
| Abstrakt: |
The kinetics of atmospheric hydrochloric acid leaching of the iron-containing slime formed during quartz–leucoxene sandstone beneficiation is studied. The calculated activation energies indicate two temperature ranges of the slime leaching: a diffusion kinetic region at 40–70°C (Ea = 35.79–36.56 kJ/mol) and a kinetic region at 70–80°C (Ea = 48.68 kJ/mol). A steplike character of the development of slime during the leaching of iron-containing minerals from it is revealed, which is caused by the consecutive processes of siderite and hematite decomposition and a change in the process rate as the solution is saturated with iron ions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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