Abstract
The textural and structural characteristics of phosphorites from the Polpinsky deposit have been determined. These raw materials are shown to be of siliceous polymineral type and consist mostly of α-quartz, hydroxycarbonate apatite, montmorillonite, and bonschtedtite. The modification dynamics of chemical composition and the textural characteristics (specific surface, pore volume, and pore diameter) of the solid upon the acid decomposition of a phosphorite sample from Polpinsky deposit have been studied. The α-quartz in phosphorites is shown to not experience crystal-structural alterations upon acid decomposition; its pore size does not inhibit the extraction of acid-soluble components, including calcium and phosphorus, from the bulk.
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Original Russian Text © I.A. Pochitalkina, D.F. Kondakov, O.A. Artamonova, O.V. Vinokurova, 2017, published in Zhurnal Neorganicheskoi Khimii, 2017, Vol. 62, No. 11, pp. 1503–1506.
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Pochitalkina, I.A., Kondakov, D.F., Artamonova, O.A. et al. Textural and structural characteristics of phosphorites from the Polpinsky deposit. Russ. J. Inorg. Chem. 62, 1495–1498 (2017). https://doi.org/10.1134/S0036023617110146
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DOI: https://doi.org/10.1134/S0036023617110146