METHOD OF PRODUCING CATALYST IN FORM OF COMPOSITE MATERIAL WITH DISTRIBUTED SPHERICAL HOLLOW PARTICLES Russian patent published in 2019 - IPC B01J37/02 B01J37/08 B01J21/06 B01J21/08 B01J23/24 B01J23/74 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering and specifically to the production of novel catalyst forms in the form of composites containing catalytically active particles (titanium dioxide-based chromium, nickel or cobalt oxides) in form of layered hollow spheres, for processes of converting hydrocarbons, including deep oxidation aromatic hydrocarbons. Method of producing a catalyst in the form of a composite material with distributed spherical hollow particles involves depositing a film-forming solution onto the organic polymer carrier, with a preliminary treatment thereof, which involves adding Ni²⁺ or Cr₂O₇^2-, or Co²⁺, followed by drying. After the step of applying the film-forming solution onto the organic polymer carrier and drying it, mixing prepared organic polymer support with liquid glass or with concentrated solution of tetramethylammonium silicate, in proportions of 1.5 to 3 by weight, after which the composite is shaped, followed by stepwise heating at temperatures 100 °C, 200 °C, 300 °C, 400 °C, 500 °C, or 120 °C, 200 °C, 250 °C, 300 °C, 350 °C, 400 °C, 450 °C, 500 °C, 550 °C, or 110 °C, 240 °C, 320 °C, 410 °C for 30–60 minutes at each temperature and at temperatures of 400–600C °C with duration of 150–300 minutes, and finally at temperature from 750 to 850 °C for 60 minutes. Film-forming solution can have the following composition, mol/l: tetrabutoxytitanium from 0.05 to 0.5; nitric acid – 1.0–5*10^-3; distilled water – from 0.2 to 0.5; n-butyl alcohol – balance.

EFFECT: method enables to form a catalyst, giving it the required shape.

1 cl, 1 tbl, 6 dwg, 3 ex