Studies of the kinetics of the reaction of dissolution of gypsum-anhydrite rocks in water of the initial stages
https://doi.org/10.33623/0579-9406-2022-6-179-181
Abstract
Experimental studies of the kinetics of dissolution of gypsum-anhydrite rocks in water (25 °C; P = 0,1 MPa) made it possible to formulate a process model in the form of a system of equations for the kinetics of dissolution of gypsum and anhydrite (of the first and second order, respectively). The calculated values turned out to be more comparable with the experimental data, taking into account the common-ion effect on the solubility of gypsum and anhydrite, and changes in their values of the specific reaction surface.
About the Authors
A. L. Alexey L. LebedevRussian Federation
Alexey L. Lebedev
Moscow
I. V. Irina V. Avilina
Russian Federation
Irina V. Avilina
Moscow
References
1. Арушанян О.Б., Богомолов Н.А., Бондаренко Н.В. и др. Конструирование библиотек программ. М.: Изд-во Моск. ун-та, 1988. 106 с.
2. Лебедев А.Л. Кинетика растворения гипса в воде // Геохимия. 2015. № 9. С. 828–841.
3. Лебедев А.Л., Авилина И.В. Экспериментальные исследования кинетики растворения гипсоангидритов в воде // Вестн. Моск. ун-та. Сер. 4. Геология. 2019. № 3. C. 93–96.
4. Печеркин А.И. Геодинамика сульфатного карста. Иркутск: Изд-во Иркут. гос. ун-та, 1986. 172 с.
5. Шваров Ю.В. HCh: новые возможности термодинамического моделирования геохимических систем, предоставляемые Windows // Геохимия. 2008. № 8. С. 898–903.
6. Kontrec J., Kralj D., Brecevic L. Transformation of anhydrous calcium sulphate into calcium sulphate dihydrate in aqueous solutions // J. Crystal. Growth. 2002.Vol. 240. P. 203–211.
7. Serafeimidis K., Anagnostou G. On the time-development of sulphate hydration inanhydritic swelling rocks // Rock Mech. Rock Eng. 2013. Vol. 46. P. 619–634.
Review
For citations:
Alexey L. Lebedev A.L., Irina V. Avilina I.V. Studies of the kinetics of the reaction of dissolution of gypsum-anhydrite rocks in water of the initial stages. Moscow University Bulletin. Series 4. Geology. 2022;(6):179-181. (In Russ.) https://doi.org/10.33623/0579-9406-2022-6-179-181