Abstract
The inventation relates to a process for the purification of lactide from a crude lactide vapour product stream which process comprises a rectification/condensation step to a lactide-enriched condensate.
| Original language | English |
|---|---|
| Patent number | WO 2005/056509 |
| IPC | C07C 55/28 |
| Filing date | 10/12/03 |
| Publication status | Published - 23 Jun 2005 |
Keywords
- lactides
- purification
- rectification
- distillation
- poly lactic acid
- lactic acid