Adipic acid purification
AssigneeE. I. Du Pont de Nemours and Company
InventorsDiana L. Klug, Johannus H. Van Mil
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Abstract
A process for purification of adipic acid during crystallization by modifying the crystal morphology to decrease incorporation of impurities through the introduction of an effective amount of an additive to the crystallizing solution.
Claims7
A process for purification of adipic acid during crystallization comprising modifying the crystal morphology to decrease incorporation of impurities by introduction of an additive to the crystallizing solution.
A process for improving the flow properties of a crystallizing solution of adipic acid comprising introducing an effective amount of a surfactant to said solution.
Dependencies are inferred from the claim text.