Crystallization process for purification of paraxylene

Details Crystallization process for purification of paraxylene Crystallization process for purification of paraxylene

1996-09-20

1998-09-22

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By cooling of liquid to obtain solid, e.g., crystallization,...

585805, 585813, 585814, C07C 714

Patent

active

058116290

ABSTRACT:
Improved process and apparatus for purifying paraxylene from mixed C8-aromatic feedstocks are disclosed in which the use of at least two crystallization stages operated at different temperatures in combination with a final product separator improves purity and recovery while reducing capital and energy costs.

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