METHOD OF PURIFICATION OF FLOWS OF INITIAL SUBSTANCES, CONTAINING AROMATIC COMPOUNDS, WITH ZEOLITES Russian patent published in 2009 - IPC C07C2/66 C07C15/73 C07C7/13 C07C15/00 C07C15/04 

FIELD: chemistry.

SUBSTANCE: claimed is group of inventions related to method of purification of flows of initial substances, containing aromatic compounds, in processes of polymerisation or alkylation by contact of flows of initial substances with zeolites, characterised by the fact that flow of initial substances is passed through, at least, two zeolites 1 and 2, average size of zeolite 1 pores being from 0.3 to 0.5 nm, and of zeolite 2 - from 0.6 to 0.8 nm, as well as to method of obtaining alkylated aromatic compounds by interaction of aromatic compounds with olefins on catalyst, which is characterised by the fact that flow of initial substances, containing aromatic compounds, is subjected to preliminary processing by described above method. Claimed method of purification of flows of initial substances, containing aromatic compounds, allows to prolong catalyst service life in processes of polymerisation and alkylation.

EFFECT: prolonging catalyst service life in processes of polymerisation and alkylation.

9 cl, 2 ex, 1 tbl