| abstract |
FIELD: chemistry. n SUBSTANCE: present invention relates to aggregated zeolite adsorbents based on X and LSX zeolites. The adsorbent contains zeolite X powder, substituted with at least 90% barium ions only or barium and potassium ions, where in exchangeable sites occupied by potassium, representing up to 1/3 of exchangeable sites occupied by barium and potassium ions, there are additional alkali or alkali-earth ions other than barium and potassium, as well as zeolite LSX powder substituted with at least 90% barium ions only or barium and potassium ions, where in exchangeable sites occupied by potassium, possibly representing up to 1/3 exchangeable sites occupied by barium and potassium ions, there are possibly additional alkali or alkali-earth ions other than barium and potassium, and also binder in an amount equal to or less than 20% of the total weight of the agglomerated zeolite adsorbent. The obtained adsorbents are efficient in separating C 8 aromatic isomers, particularly xylenes, separating sugars, separating polyatomic alcohols, separating isomers of substituted toluenes, separating cresols and separating dichlorobenzenes. n EFFECT: higher efficiency. n 16 cl, 1 dwg, 5 tbl, 10 ex |