Magnetic Sorbents Obtained by Mechanochemical Treatment of Quartz-Containing Mixtures
N. N. MOFA, O. V. CHERVYAKOVA, T. A. KETEGENOV and Z. A. MANSUROV
Institute of Combustion Problems, Ul. Bogenbay batyra 172,
Almaty 480012 (Kazakhstan) E-mail: icp@nursat.kz
Pages: 727-733
Abstract
Mechanochemical treatment of quartz and its mixtures with ash-slag and iron oxides in the presence of various modifying additives (alcohols, activated carbon, polystyrene) was carried out. The dependence of specific surface, density and specific pore volume of quartz-containing mixtures on the time of treatment and a kind of modifying additive was investigated. Quartz and mixtures based on it exhibit ferromagnetic properties and are distinguished by good sorption ability toward organic substances. The synthesized sorbents were used to collect petroleum spill over water; high water purification degree (up to 98 %) was achieved.
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