Environmentally friendly and resource-saving technology for disposal of dusty asbestos- containing wastes and production of magnesium salts
Auyeshov A. Satimbekova A. Arynov K. Bekaulova A. Yeskibayeva S. Idrisheva Z.
May 2021Asian Research Publishing Network
ARPN Journal of Engineering and Applied Sciences
2021#16Issue 9987 - 990 pp.
This paper described a scheme for disposal of dusty asbestos-containing wastes (DAW), mainly containing serpentine minerals such as antigorite, chrysotile and lizardite with the grade of MgO and SiO2 of 32-38 wt. %, respectively, is proposed in the work on the basis of conditions and modes of acid treatment of DAW determined experimentally. Conditions and modes of acid treatment of DAW are proposed in order to produce magnesium salts (MgSO4, MgCl2 и Mg(NO3)2) using sulfuric, hydrochloric and nitric acids to leach magnesium from DAW. It has been noted that the quality of produced magnesium salts is consistent with the currently valid quality standards, and a thick layer of polysilicic acid is formed on the surface of undissolved residues that changes composition and physical-and-chemical properties of surface layers of chrysotile-asbestos, including its adverse environmental impact. An environmentally friendly and resource-saving technology for disposal of industrial dusty asbestos-containing wastes produced from mining and beneficiation of chrysotile-asbestos has been proposed on the basis of the research results.
and environment , chrysotile-asbestos , dusty asbestos-containing wastes (DAW) , magnesium chloride , magnesium nitrate , magnesium sulfate
Text of the article Перейти на текст статьи
Auyezov South-Kazakhstan State University, Tauke-Khan Street, Shymkent, Kazakhstan
Aspan-Tau Ltd LLP, Slanov Street, Almaty, Kazakhstan
Auyezov South-Kazakhstan State University
Aspan-Tau Ltd LLP
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026