Process for the preparation of catalysts based on SIALON for sewage treatment from phenol, a catalyst prepared by this method, and the method of sewage treatment from phenols with this catalyst

摘要

1. A process for producing a catalyst for purification of phenol from waste water, comprising nitriding at a nitrogen pressure of 1.0-12.0 MPa ferroalloy previously ground to a particle size of less than 160 mm in a self-sustaining mode of combustion with the subsequent filtration doazotirovaniem surround combustion mode at a nitrogen pressure of 0.15-10.0 MPa for 0.5-1.0 hours, wherein the ferroalloy used as ferrosilicoaluminum in particulate ferroalloy is further added alumina in an amount of 5.0-30.0 wt.%, the resulting nitrided alloy p azmalyvayut, isolated fraction of granules of size 0.315-2.5 mm and prepared based catalyst sialona.2. A catalyst for purification of phenol from waste water represents sialon-based catalyst obtained by the process according to Claim. 1, the size of 0.315-2.5 mm and the granules consist of main phases β-α-sialon SiAlONi zheleza.3. A method for purifying waste water from phenol at room temperature in the presence of iron-containing catalyst, which is immersed in the waste water with simultaneous supply at a rate of 0.5-1.5 liters / minute for 5-10 min a mixture of ozone with ozone 0.01-0.02 g / L, wherein that cleaning is carried out in the presence of a catalyst based on n sialon. 2.