Textural and structural characteristics of phosphorites from the Polpinsky deposit

被引：6
|
作者：
Pochitalkina, I. A. [1 ]
Kondakov, D. F. [2 ]
Artamonova, O. A. [1 ]
Vinokurova, O. V. [1 ]
机构：
[1] Russian Univ Chem Technol, Moscow 125047, Russia
[2] Russian Acad Sci, Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2017年 / 62卷 / 11期
关键词：
11;
D O I：
10.1134/S0036023617110146
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
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 alpha-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 alpha-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.
引用
收藏
页码：1495 / 1498
页数：4
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