UZM-12 AND UZM-12HS: MICROPOROUS, CRYSTALLINE ALUMINOSILICATE ZEOLITE COMPOSITIONS AND METHOD OF CONVERTING HYDROCARBON

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to synthesis of zeolites. A range of crystalline aluminosilicate zeolites, identified as UZM-12, are obtained. The zeolites are characterised by a defined X-ray diffraction pattern. The UZM-12 compositions have ERI topology (erionite) and Si/Al5.5; they can be prepared in form of nanocrystals with average particle size of 15-50 nm and spheroidal morphology. The UZM-12 composition can be treated to remove at least some atoms of the aluminium framework, obtaining zeolites with Si/Al5.75, identified as UZM-12HS. UZM-12 and UZM-12HS are capable of catalysing different processes of converting hydrocarbons.;EFFECT: obtaining virtually pure erionite, as well as modification of morphology of crystals, thereby obtaining spherical crystals.;8 cl, 14 ex, 14 tbl, 1 dwg