METHOD FOR PREPARING CHEMOSORBENT Russian patent published in 2006 - IPC C01B31/08 

FIELD: chemical technology, sorbents.

SUBSTANCE: invention relates to sorption technique. Invention proposes a method for preparing a chemosorbent involving preparing an impregnating solution containing ferric (III) chloride, impregnation of activated carbon grains with this solution followed by their thermal treatment. Impregnation is carried out in the ratio carbon mass to volume of impregnating solution from 1:0.66 to 1:0.9 and thermal treatment is carried out at 100-109°C. The content of ferric chloride in the ready product is 3.5-6.5 % by mass. Proposed method provides preparing sorbent with high absorptive capacity by mercury vapors. Invention can be used for removal of toxic substances from air and for solution of broad spectrum of ecology problems.

EFFECT: improved preparing method of chemosorbent.

2 cl, 3 ex