RESEARCHING OF SULFURIC ACID LEACHING OF MAGNESIUM FROM SERPENTINES
Dikanbayeva A.K. Auyeshov A.P. Satayev M.S. Arynov K.T. Yeskibayeva Ch.Z.
2021National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2021#5Issue 44932 - 38 pp.
The processes of magnesium extraction from waste – MPMP (multi-purpose mineral powder 0.025-0.25 mm in diameter) being the residual of technological processes on extraction of fibrous chrysotile asbestos by ventilation pumps and sulfuric acid solutions – have been studied. It is shown that the rational concentration of sulfuric acid needed to extract magnesium, where its use is close to 100%, is a solution containing 0.3 SRQ of sulfuric acid taken relative to the content of the amount of magnesium in MPMP. Apparent activation energy of MPMP dissolution reactions in a sulfuric acid solution being equal to 45.0 kJ/mol correspondingto the activation energy of diffusion-controlled processes was determined by kinetic studies and processing of obtained data. It is shown that the rate and amount of extractable magnesium from MPMP limit complex associates from silica that appear as a result of MPMP and sulfuric acid reactions at the initial stage of interactions.
And sulfuric acid extraction , Chrysotile-asbestos waste , Magnesium , Serpentine , Silica , Sulfuric acid
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M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Аspan-Tau Ltd LLP, Almaty, Kazakhstan
M. Auezov South Kazakhstan University
Аspan-Tau Ltd LLP
10 лет помогаем публиковать статьи Международный издатель
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