Process for the purification of maleic anhydride

Details Process for the purification of maleic anhydride Process for the purification of maleic anhydride

1998-01-13

1999-10-26

Dentz, Bernard

Distillation: processes, separatory

Vaporization zone under positive pressure or vacuum

And returning product of distillation step to distillation zone

549262, C07D30760

Patent

active

059721740

ABSTRACT:
Processes for the purification and color stabilization of crude maleic anhydride by distillation in a batch or continuous distillation column.

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