HIGHLY-ACTIVE MOLECULAR SIEVES WITH STRUCTURE OF MTT TYPE Russian patent published in 2013 - IPC C01B39/00 C01B39/04 B01J29/00 C10G45/64 

FIELD: chemistry.

SUBSTANCE: described is method of molecular sieve ZSM-23 obtaining, which includes: a) preparation of mixture, capable of formation of claimed molecular sieve; and claimed mixture includes sources of alkaline or alkaline-earth metal (M), oxide of trivalent element (X), oxide of tetravalent element (Y), water and structure directing agent (R) of formula (CH₃)₃N⁺CH₂CH₂CH₂N⁺(CH₃)₂CH₂CH₂CH₂N⁺(CH₃)₃, and has composition, in molar ratio, within the following ranges: YO₂/X₂O₃ from 25 to 29, H₂O/YO₂ from 5 to 100, OH^-/YO₂ from 0,05 to 0,5, M/YO₂ from 0,05 to 0,5, R/YO₂ from >0 to <0,5, and b) exposure of claimed mixture in conditions, sufficient for obtaining claimed ZSM-23, where mentioned sufficient conditions include temperature from nearly 150 to 200°C. Described is method of dewaxing of wax-containing raw material by izomerisation of paqraffins, in presence of molecular sieve ZSM-23, obtained by method described above.

EFFECT: increase of catalytic activity.

12 cl, 7 dwg, 2 tbl, 13 ex