September 25, 2025

Investigation of the mineralogical composition of Altintau kaolins using x-ray diffraction analysis

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In-depth investigation of kaolin's phase changes during thermal processing, revealing effects of microbiological treatments on mineral structure.

Kaolin from the Altintau deposit is a polymineral material with high kaolinite content, enhancing its desirability.
X-ray diffraction analysis reveals increased diffraction intensity of kaolinite after microbiological treatment, indicating improved purity.
The study shows that finely dispersed hematite particles are significant in the kaolin's processing and quality.
A proposed microbiological enrichment method effectively reduces iron oxides in an acidic environment, aiding in kaolin purification.

Turdieva et al. (2025) studied this question.

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In-depth investigation of kaolin's phase changes during thermal processing, revealing effects of microbiological treatments on mineral structure.