METHOD OF MAKING BORON NITRIDE-BASED CATALYST FOR CLEANING EFFLUENTS OF PHENOL, CATALYST THUS MADE, AND METHOD OF CLEANING EFFLUENTS OF PHENOL USING SAID CATALYST Russian patent published in 2013 - IPC C02F1/78 B01J21/02 B22F3/23 C02F101/30 

FIELD: process engineering.

SUBSTANCE: set of invention relates to powder metallurgy, treatment of industrial and domestic effluents. Ferroalloy nitration is conducted in self-sustaining layer-by-layer burning at nitrogen pressure of 1.0-12.0 MPa. Ferroalloy contains 20-40 wt % of boron and features particle size smaller than 160 mcm. In nitration of ferroalloy, amorphous boron is added in amount of 1.0-10.0 wt % to initial blend. Subsequent nitration is conducted in bulk burning mode at nitrogen pressure of 0.15-10.0 MPa for 0.5-1.5 h. Produced nitrated alloy is ground to isolate pellet fraction of 0.63-2.5 mm. Produced catalyst is immersed in effluent along with feed ozone-air mix therein.

EFFECT: high catalytic activity, higher efficiency of purification.

3 cl, 1 dwg, 1 tbl, 8 ex