METHOD FOR UTILIZATION OF CHLORINE-CONTAINING WASTE Russian patent published in 2005 - IPC

FIELD: chemistry, in particular utilization of chlorine-containing waste.

SUBSTANCE: claimed method includes passing of organochlorine compound vapors blended with oxygen-containing reaction gaseous mixture through catalyst layer providing oxidation of starting organochlorine compounds. Said catalyst represents geometrically structured system from microfibers with length of 5-20 mum. Catalyst has active centers which are characterized by presence of absorption band in absorbed ammonia IR-spectrum with wave number ν = 1410-1440 cm^-1; contains platinum group metal as active ingredient; and glass fiber carrier. Said carrier in NMR²⁹Si-spectrum has lines with chemical shifts of -100±3 ppm (Q³-line) and -110±3 ppm (Q⁴-line) in integral intensity ratio of Q³/Q⁴ = 0.7-1.2; in IR-spectrum it has hydroxyl absorption band with wave number ν = 3620-1440 cm^-1 and half-width of 65-75 cm^-1; has specific surface, measured by BET using argon thermal absorption: S_Ar = 0.5-30 m²/g; surface area, measured by alkali titration: S_Na = 10-250 m²/g, wherein S_Na/S_Ar = 5-30.

EFFECT: selective oxidation of starting organochlorine compounds to safe and easily utilizing substances without toxic by-product formation.

3 cl, 4 ex