| abstract |
A process for the preparation of a zeolitic material, comprising (i) providing a zeolitic material containing boron (B-Zeolite); (ii) deburring the zeolite B with a liquid solvent system at a temperature in the range of 95 to 100 ° C, thereby obtaining an unbroken zeolite B (zeolite); wherein the boron-containing B-Zeolite zeolitic material provided in (i) is a zeolitic material containing MWW (B-MWW) type boron, where the liquid solvent system is water, and wherein said solvent system The liquid does not contain an inorganic or organic acid or a salt thereof, wherein the desboration according to (ii) is carried out for a time in the range of 6 to 20 h. |