SORBENT FOR EXTRACTION OF INORGANIC AND ORGANIC POLLUTANTS FROM MEDIUM AND A METHOD OF EXTRACTION OF INORGANIC AND ORGANIC POLLUTANTS FROM MEDIUM USING THIS SORBENT Russian patent published in 1996 - IPC

FIELD: treatment of liquid media and gases. SUBSTANCE: sorbent for extraction of sulfur compounds, metals, varnishes, dyes, fatty substances and petroleum product consists of the foam waste after shale combustion and has the following composition, wt.-%: SiO₂ 26,0-27,0 26-27; TiO 0.4-0.5; Al₂O₃ 7,0-7,5 7.0-7.5; Fe₂O₃ 5,0-5,5 5.0-5.5; MnO 0.05-0.1; MgO 2.903.2; CaO 43-44; Na₂O 0,05-0,1 0.05-0.1; K₂O 2,5-3,5 2.5-3.5; P₂O₅ 0.12-0.13; S 2.2-2.5, and other substances including trace elements - the rest. Liquid medium or gas containing substances to be extracted is mixed with proposed sorbent at the mass ratio sorbent/medium = 1:(10-200) and extraction is carried out under conditions providing suspended state of sorbent solid particles in medium at pH range 3-13. Sorbent shows high sorption capacity, treatment degree is 100%, broad region of utilization. EFFECT: increased effectiveness of sorbent. 7 cl, 5 tbl