FIELD: chemistry.
SUBSTANCE: method for preparation comprises (i) provision of boron containing zeolite material (B-zeolite), which is a MWW (B-MWW), BEA (B-BEA), or CHA (B-CHA) type structure material, (ii) B-Zeolite deboration by a liquid solvent system at a temperature of 50 to 125°C. The liquid solvent system is selected from the group consisting of water, monohydric alcohols, polyhydric alcohols and mixtures of two or more thereof, wherein the liquid solvent system used does not contain any inorganic or organic acids or salts thereof. The zeolite obtained after deboratiob contains no more than 0.2 wt % of boron.
EFFECT: method simplification.
18 cl, 6 dwg, 7 ex
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