METHOD FOR PRODUCING MICRO-MESOPOROUS MTW/MCF MATERIAL WITH HIERARCHICAL STRUCTURE Russian patent published in 2023 - IPC C01B39/04 

FIELD: micro-mesoporous materials production.

SUBSTANCE: invention relates to the field of obtaining micro-mesoporous materials. A method for obtaining a micro-mesoporous material MTW/MCF with a hierarchical structure is described, in which an aqueous solution acidified with hydrochloric acid is prepared with a concentration of 0.5-1.6 M with a template, which is used as poly(ethylene glycol)-block-poly(propylene glycol)-block-poly (ethylene glycol), taken on the basis that 12.5 to 17.5 ml of an aqueous solution acidified with hydrochloric acid is taken per 1 g of the template, the resulting mixture is stirred until a homogeneous state at room temperature; then 1,3,5-trimethylbenzene is added to the mixture, taken from the calculation that 0.75 to 1.75 ml of 1,3,5-trimethylbenzene is taken per 1 g of the template, and stirred until a milky emulsion is formed; then microporous zeolite with the MTW structural type is added to the emulsion, taken on the basis that 0.5 to 1.5 g of zeolite is taken per 1 g of the template, and mixed until homogeneous; then add a silicon compound - tetraethylorthosilicate, taken on the basis that 1 g of zeolite take from 2 to 4 ml of tetraethylorthosilicate, and stirred until homogeneous; mix and keep under static conditions at 40±10°C for 24±2 hours; an aqueous solution of ammonium fluoride with a concentration of 0.1-0.5 M is added to the resulting mixture, taken from the calculation that 0.02 to 0.06 ml of an aqueous solution of ammonium fluoride is taken per 1 g of zeolite, and stirred until homogeneous; the resulting mass is crystallized under hydrothermal conditions from a temperature range of 90-110°C for 22-28 hours, followed by isolation of the resulting product, washing it with distilled water, drying to constant weight and annealing at 600±10°C for 4-8 hours.

EFFECT: obtaining micro-mesoporous material MTW/MCF with a hierarchical structure.

7 cl, 4 tbl, 3 dwg, 5 ex