Process for preparation of zeolitic material
AssigneeBASF SE
InventorsUlrich Mueller, Andrei-Nicolae Parvulescu, Jeff Yang, Hans-Juergen Luetzel, Georg Uhl, Stefan Dumser
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Abstract
The present invention relates to a process for process for the preparation of a zeolitic material which process comprises (i) providing a boron-containing zeolitic material and (ii) deboronating the boron-containing zeolitic material by treating the boron-containing zeolitic material with a liquid solvent system thereby obtaining a deboronated zeolitic material, which liquid solvent system does not contain an inorganic or organic acid, or a salt thereof.
Claims22
A process for the preparation of a zeolitic material, comprising
- (i) providing a boron-containing zeolitic material (B-Zeolite);
- (ii) deboronating the B-Zeolite with a liquid solvent system at a temperature in the range of from 50 to 125° C. thereby obtaining a deboronated B-Zeolite (Zeolite);
- wherein the boron-containing zeolitic material B-Zeolite provided in (i) is a boron-containing zeolitic material of the structure MWW (B-MWW),
- wherein the deboronated B-Zeolite (Zeolite) obtained in (ii) is a deboronated B-MWW (MWW);
- wherein the liquid solvent system is selected from the group consisting of water, monohydric alcohols, polyhydric alcohols, and mixtures of two or more thereof, and
- wherein said liquid solvent system does not contain an inorganic acid.
A deboronated zeolitic material (Zeolite), containing at most 0.2 weight-% boron, calculated as element and based on the total weight of the Zeolite;
- wherein the Zeolite has a structure of MWW.
Dependencies are inferred from the claim text.