| abstract |
(57) [Summary] [PROBLEMS] To produce lactide which does not contain meso lactide, has high purity and low water content. SOLUTION: In the present invention, first, L-lactide and / or Alternatively, meso-lactide is separated from L-lactide and / or D-lactide by contacting D-lactide and a mixture containing meso-lactide with water. Then, after washing with a water-soluble solvent such as alcohol, recrystallization is performed with a hydrophobic solvent that does not react with lactide and is compatible with the solvent, for example, toluene. |