Kinetics of talc dissolution in the presence of organic complexing agents
https://doi.org/10.55959/MSU0579-9406-4-2024-63-3-59-64
Abstract
Natural silicates are potential sources of divalent cations, which are necessary for the mineralization of CO2 in the form of carbonates. The kinetics study of the natural talc dissolution was carried out in flow-through reactors at 25 °C in the presence and absence of organic ligands — oxalate and citrate, at pH 3. Increasing of the rate of talc dissolution in the presence of citrate and oxalate, approximately 3–4 times, is typical only for the initial stage of mineral dissolution. The steady-state dissolution rates of talc were established approximately 30–40 hours after the beginning of the experiment and were equal to 3E–10–16 mol/cm2s.
Keywords
About the Authors
O. N. Karaseva
Институт экспериментальной минералогии имени академика Д.С. Коржинского
Russian Federation
Russian Federation
Olga N. Karaseva
Chernogolovka
L. Z. Lakshtanov
Институт экспериментальной минералогии имени академика Д.С. Коржинского
Russian Federation
Russian Federation
Leonid Z. Lakshtanov
Chernogolovka
D. A. Khanin
Институт экспериментальной минералогии имени академика Д.С. Коржинского; Московский государственный университет имени М.В. Ломоносова
Russian Federation
Russian Federation
Dmitriy A. Khanin
Chernogolovka, Moscow
A. S. Proskuryakova
Институт экспериментальной минералогии имени академика Д.С. Коржинского
Russian Federation
Russian Federation
Aleksandra S. Proskuryakova
Chernogolovka
E. V. Khanina
Институт экспериментальной минералогии имени академика Д.С. Коржинского
Russian Federation
Russian Federation
Elena V. Khanina
Chernogolovka
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Review
For citations:
Karaseva O.N., Lakshtanov L.Z., Khanin D.A., Proskuryakova A.S., Khanina E.V. Kinetics of talc dissolution in the presence of organic complexing agents. Moscow University Bulletin. Series 4. Geology. 2024;(3):59-64. (In Russ.) https://doi.org/10.55959/MSU0579-9406-4-2024-63-3-59-64
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