Chromatographic separation of ammonium sulfate and 2-hydroxy-2-methylpropionic acid
AssigneeTrinseo Europe GmbH
InventorsThibault Lesaffre, Marjory Edon, Laurine Redelsperger, Aymeric Duplessix
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Abstract
The invention relates to a process for the chromatographic purification of a starting stream containing ammonium sulfate and 2-hydroxy-2-methylpropionic acid, comprising: passage of the starting stream through a bed of stationary phase; elution of a raffinate enriched in ammonium sulfate and depleted in 2-hydroxy-2-methylpropionic acid; and elution of an extract enriched in 2-hydroxy-2-methylpropionic acid and depleted in ammonium sulfate.
Claims19
A process for the chromatographic purification of a starting stream containing ammonium sulfate and 2-hydroxy-2-methylpropionic acid, comprising:
- passing said starting stream through a bed of stationary phase;
- elution of a raffinate enriched in ammonium sulphate and depleted in 2-hydroxy-2-methylpropionic acid;
- and
- elution of an extract enriched in 2-hydroxy-2-methylpropionic acid and depleted in ammonium sulphate.
Dependencies are inferred from the claim text.