Research analyzes purification of used motor oils using bentonite to remove impurities and oxidation products.
This article analyses the changes in the physicochemical properties of used oils that occur following an adsorption purification process using bentonite. According to the research results, the bleaching clay and bentonite adsorbent effectively absorbs mechanical impurities, oxidation products, and harmful additives
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Ergashev et al. (2026) studied this question.
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