| abstract |
The invention relates to an adsorbent comprising a zeolite phase and a non-zeolitic phase, said adsorbent having: an external surface area of less than or equal to 30 m 2 g -1, preferably less than or equal to 20 m 2 g -1, zeolite phase comprising at least one X-type FAU structure zeolite, and a pore diameter distribution, determined by mercury intrusion according to ASTM D4284-83 and expressed by the volume distribution dV / dlogDHg, where DHg is the apparent diameter of the pores, and V, the pore volume, whose mode is between 100 nm and 250 nm, limits included. The invention also relates to a process for the preparation of said adsorbent and their uses, in particular for the separation of xylene isomers. |