SILICOALUMOPHOSPHATE MOLECULAR SIEVE, ITS PREPARATION AND APPLICATION Russian patent published in 2024 - IPC B01J29/85 C01B37/08 C01B39/54 B01J37/08 B01J35/04 

FIELD: molecular sieve technology.

SUBSTANCE: invention relates to silicoaluminophosphate molecular sieve, its preparation and use. Silicoaluminophosphate molecular sieves (variants) are described, which are characterized by a schematic chemical composition expressed on a molar basis by the formula mSiO₂•Al₂O₃•nP₂O₅, in which m represents the molar ratio of SiO₂ and Al₂O₅ and is in the range, ranging from 0.005 to 0.15, and n represents the molar ratio of P₂O₅ and Al₂O₃ and is in the range of from 0.7 to 1.1, wherein the molecular sieves are characterized by an X-ray diffraction pattern exhibiting a relative intensity, and the use of said silicoaluminophosphate molecular sieves. The method for producing silicoaluminophosphate molecular sieve (variants) includes the following steps: i) obtaining a silicoaluminophosphate molecular sieve precursor, the precursor being characterized by an x-ray diffraction pattern exhibiting a relative intensity profile; ii) calcining the silicoaluminophosphate molecular sieve precursor to obtain a silicoaluminophosphate molecular sieve. Also described are molecular sieve compositions containing said silicoaluminophosphate molecular sieve and binder and their use.

EFFECT: production of a new silicoaluminophosphate molecular sieve, characterized by a unique X-ray diffraction pattern and which should be suitable for use as an adsorbent, catalyst or catalyst carrier.

24 cl, 2 dwg, 34 tbl, 20 ex