METHOD OF PRODUCTION OF SORBENT-CATALYST Russian patent published in 2005 - IPC

FIELD: sorption technology; cleaning waste industrial gases; individual protective means (gas masks and respirators).

SUBSTANCE: proposed method includes carbonization, activation and impregnation of warp with ammonia solution containing catalytic additives of copper, chromium, silver and triethylenediamine followed by removal of excess of solution, aging, heat treatment and cooling; used as warp is non-woven viscose material which is carbonized at temperature of 340-400°C and impregnated at volume ratio of non-woven material and impregnating solution of 1 : (14-18); excessive impregnating solution is removed by squeezing to ratio of material and solution of 1 : (4-5); after heat treatment, product is cooled at rate of (1.5-4)°C; concentration of catalytic additives in solution is as follows, mass-%: copper, 0.3-0.4; chromium, 0.12-0.16; silver, 0.01-0.02 and triethylenediamine, 0.05-0.08.

EFFECT: improved sorption ability by decane at retained adsorption ability by chlorocyanogen; reduced resistance of layer.

2 cl, 3 ex