| 摘要 |
The invention concerns a method for continuously producing a dimmer-rich and tri-mer rich oligomeric lactic acid composition, starting with a lactic composition by eliminating water from said lactic acid composition. The invention is characterized in that it consists in: carrying out said elimination in an adiabatic reactor provided with a recycling loop, continuously introducing a lactic acid composition in a circulating starter reaction medium being brought to a temperature ranging between 120° C. and 180° C. and in eliminating the water vapour form. |
