FIELD: chemical technology. SUBSTANCE: synthesis is carried out by dehydrocyclodimerization of propane in the presence of catalyst-crystalline zeolite type ZMS-5 containing phosphorus-containing aluminium oxide at mass ratio phosphorus: aluminium oxide 11: (30-50) at quantity 30-50 % of catalyst mass (on the basis of aluminium oxide) and gallium (1% of catalyst mass ). Preliminary raw is refined from fluoride (residual fluorine content is 0-8 p/mlrd), and catalyst inactivated due to precipitation of carbon on it in the process of conversion is regenerated. Catalyst is regenerated placing it in oxygen-containing gas flow at 490-540 C. EFFECT: decreased loss of catalyst activity. 1 dwg, 3 tbl
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