PREPARING CATALYSTS BASED ON BORZEOLITES Russian patent published in 2017 - IPC B01J29/86 C01B37/00 

FIELD: chemistry.

SUBSTANCE: method is proposed for preparing catalysts based on boron-containing silicates of a zeolite structure having a boron content of less than 1 wt %, comprising preparing an aqueous slurry containing, at least, one boron-containing silicate with a MFI type zeolite structure having a SiO₂/B₂O₃ from 2 to 4 and an aluminium content of less than 1 wt %; additing acid to establish a pH of 1-5; stirring the slurry; isolating the resulting solid, its optional washing and calcinating at a temperature not higher than 350°C. A catalyst is proposed, prepared by the inventive process.

EFFECT: proposed catalysts provide a high level of selectivity to isobutene during the cleavage of methyl-tertio-butyl ether and provide a reduced formation of by-products.

15 cl, 2 ex