FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a catalyst based on pentasil-type crystalline aluminosilicate, the method including steps of: (a) treating a hydrate of aluminium oxide with an acid-containing aqueous agent, (b) mixing the hydrate of aluminium oxide treated with an acid-containing aqueous agent from step (a) with H-zeolite with mean diameter of primary crystallites ranging from 0.01 mcm to less than 0.1 mcm, (c) moulding the mixture obtained at step (b) by extrusion and (d) calcining the mixture obtained at step (c), wherein at least 95 vol. % of particles of the hydrate of aluminium oxide (with respect to the mean diameter) is less than or equal to 100 mcm. The invention also relates to a catalyst and use of the catalyst to convert methanol into olefins.
EFFECT: obtaining catalysts with a longer service life, selectivity and activity.
17 cl, 2 tbl, 14 ex
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