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Interaction between Tuff and Calcium Hydroxide under Hydrothermal Conditions for Obtaining a Potash Fertilizer

  • TECHNOLOGY OF INORGANIC SUBSTANCES AND MATERIALS
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Abstract

The interaction between dacitic tuff and calcium hydroxide under hydrothermal conditions has been investigated. At a ratio of CaO/SiO2 = 0.3–1.5 : 1 and at a ratio between the liquid phase and the solid phase amounting to 10 : 1, after 2 h at 220°C, calcium hydroxide is completely bound. As a result of the destruction of potassium feldspar in tuff, potassium can be transformed into a plant-digestible form.

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Authors and Affiliations

  1. Manvelyan Institute of General and Inorganic Chemistry, National Academy of Sciences of the Republic of Armenia, 375051, Yerevan, Armenia

    K. G. Grigoryan, L. G. Baginova, A. A. Khachatryan, S. M. Ayrapetyan, G. A. Arutyunyan, A. K. Kostanyan & A. N. Aznauryan

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  1. K. G. Grigoryan
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  2. L. G. Baginova
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  3. A. A. Khachatryan
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  4. S. M. Ayrapetyan
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  5. G. A. Arutyunyan
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  6. A. K. Kostanyan
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  7. A. N. Aznauryan
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Corresponding author

Correspondence to A. A. Khachatryan.

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Translated by O. Polyakov

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Grigoryan, K.G., Baginova, L.G., Khachatryan, A.A. et al. Interaction between Tuff and Calcium Hydroxide under Hydrothermal Conditions for Obtaining a Potash Fertilizer. Theor Found Chem Eng 54, 706–709 (2020). https://doi.org/10.1134/S0040579519050075

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  • DOI: https://doi.org/10.1134/S0040579519050075

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