Adsorbent for separation of para-xylene

摘要

Para-xylene may be separated as extract product by contacting charge C-8 aromatic hydrocarbon mixture with a synthetic crystalline barium or barium/potassium aluminosilicate zeolite HP, formed by ion exchange from a sodium aluminosilicate zeolite HP having a lattice constant of 25.02-25.10 ANGSTROM and a ratio of silicon atoms to aluminum atoms of less than 1.0.