Asbestos Waste Treatment—An Effective Process to Selectively Recover Gold and Other Nonferrous Metals
Baigenzhenov O. Khabiyev A. Mishra B. Aimbetova I. Yulusov S. Temirgali I. Kuldeyev Y. Korganbayeva Z.
December 2022MDPI
Recycling
2022#7Issue 6
We investigated the potential of tailings generated from chrysotile asbestos fiber production as a source of iron, nonferrous metals, and gold. We proposed the use of granulometric separation and systematically examined different enrichment processes, namely magnetic separation, gravity concentration, and enrichment using a Knelson concentrator, to extract the valuable components. The characterization of the initial tailing samples revealed that it comprises primarily of serpentine, brucite, antigorite, hematite, vustite, sillimanite, and magnesium oxide. Using the suggested enrichment process, we isolated gold, chromite, and nickel-cobalt concentrates as valuable products in addition to magnetite. The new approach exhibited high separation efficiency for iron, nonferrous metals, and gold, allowing their satisfactory extraction.
asbestos tailings , complex processing , enrichment , gold , nonferrous metals
Text of the article Перейти на текст статьи
Mining-Metallurgy Institute, Satbayev University, 22a Satpaev Str, Almaty, 050013, Kazakhstan
Metal Processing Institute, Worcester Polytechnic Institute, 100 Institute Road, Worcester, 01609-2280, MA, United States
Faculty of Natural Sciences, Akhmet Yassawi International Kazakh-Turkish University, 29 B. Sattarkhanov Ave, Turkestan, 161200, Kazakhstan
Institute of Natural Sciences and Geography, Abai University, 13. Dostyk Ave, Almaty, 050010, Kazakhstan
Mining-Metallurgy Institute
Metal Processing Institute
Faculty of Natural Sciences
Institute of Natural Sciences and Geography
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026