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US 12,759,994 B2Granted
Isolation method for lactide racemate
AssigneeLG Chem, Ltd.
InventorsYujin An, Hyunchul Jung, Wan Kyu Oh
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Abstract
Provided is an isolation method capable of isolating lactide racemate with high yield and with high efficiency, without concern for side reactions, even when the amount of L-lactide is low.
Claims11
A method for isolating lactide racemate, comprising:
- introducing L-lactide into lactide racemate and mixing them to prepare a mixture;
- and
- introducing an extraction solvent into the mixture, to selectively extract L-lactide from the lactide racemate,
- wherein the extraction solvent comprises an amine-based compound or an amide-based compound.
1 more element
Dependencies are inferred from the claim text.