Adsorbent for separation of para-xylene

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs

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423112, B01J 2906

Patent

active

044422229

ABSTRACT:
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 .ANG. and a ratio of silicon atoms to aluminum atoms of less than 1.0.

REFERENCES:
patent: 3960774 (1976-06-01), Rosback
patent: 4029717 (1977-06-01), Henly et al.
patent: 4289740 (1981-09-01), Estes

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