The present invention relates to a zeolitic adsorbent comprising at least one zeolite FAU having a hierarchical porosity and comprising barium or barium and potassium, and whose external surface is greater than 20 m 2 g -1, and the non-zeolitic phase rate is between 6% and 12% by weight relative to the total weight of the adsorbent, limits included. The present invention also relates to the use of such a zeolite adsorbent as an adsorbing agent, as well as the process for separating para-xylene from aromatic isomeric slices of 8 carbon atoms.
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机译：沸石吸附剂技术领域本发明涉及一种沸石吸附剂，其包含至少一种具有分级孔隙率并且包含钡或钡和钾的沸石FAU，并且其外表面大于20m 2 g -1，并且非沸石的相速率在6之间。相对于吸附剂的总重量的10重量％和12重量％，包括极限。本发明还涉及这种沸石吸附剂作为吸附剂的用途，以及从8个碳原子的芳族异构体切片中分离对二甲苯的方法。
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