MICRO-MESOPOROUS CRYSTALLINE MATERIAL AND METHOD OF MAKING SAID MATERIAL Russian patent published in 2010 - IPC C01B39/04 

FIELD: chemistry.

SUBSTANCE: invention relates to production of crystalline materials with a micro-mesoporous structure. The method of making micro-mesoporous crystalline material involves reacting microporous crystalline material with a solution of a water-soluble base and a surfactant, drying and calcination of the obtained material. The reaction takes place in a single step in a solution containing 0.07-0.7 mol/l of a water-soluble base and 0.02-0.40 mol/l of a surfactant at 20-100°C for 1-24 hours. The obtained material has high crystallinity and has a bimodal porous structure which has zeolite micropores with diametre of 0.4-1.0 nm and mesopores with diametre of 2-30 nm, localised in the volume of a zeolite crystal. The fraction of micropores in the total pore volume may vary from 0.4 to 0.85, while the fraction of mesopores in the total pore volume may vary from 0.15 to 0.60.

EFFECT: invention improves quality of micro-mesoporous material, simplifies the production method and widens the range of crystalline materials with a micro-mesoporous structure.

7 cl, 2 tbl, 23 ex, 6 dwg