EP 1476237 A1 20041117 - METHOD FOR LACTIC ACID OLIGOMERIZATION
Title (en)
METHOD FOR LACTIC ACID OLIGOMERIZATION
Title (de)
VERFAHREN ZUR OLIGOMERISIERUNG VON MILCHSÄURE
Title (fr)
PROCEDE D OLIGOMERISATION D ACIDE LACTIQUE
Publication
Application
Priority
- FR 0300305 W 20030131
- FR 0201549 A 20020208
Abstract (en)
[origin: WO03066187A1] The invention concerns a method for continuously producing a dimer-rich and trimer-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, said reaction medium being brought to a temperature ranging between 120 DEG C and 180 DEG C and in eliminating the water in vapour form.
IPC 1-7
IPC 8 full level
B01D 3/00 (2006.01); B01D 3/10 (2006.01); B01J 19/24 (2006.01); C07C 67/08 (2006.01); C07C 69/68 (2006.01)
CPC (source: EP KR US)
B01D 3/00 (2013.01 - KR); B01D 3/009 (2013.01 - EP US); B01J 19/24 (2013.01 - EP KR US); B01J 19/2465 (2013.01 - EP US); C07C 67/08 (2013.01 - EP KR US); C07C 67/465 (2013.01 - KR); B01J 2219/00094 (2013.01 - EP US); B01J 2219/00182 (2013.01 - EP US); Y02P 20/10 (2015.11 - EP US)
Citation (search report)
See references of WO 03066187A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03066187 A1 20030814; WO 03066187 A8 20040923; AU 2003222349 A1 20030902; BR PI0307487 A2 20161108; CA 2474720 A1 20030814; CN 1630545 A 20050622; CN 1846825 A 20061018; EP 1476237 A1 20041117; FR 2835832 A1 20030815; FR 2835832 B1 20040319; JP 2005516999 A 20050609; KR 20040089610 A 20041021; MX PA04007669 A 20051117; US 2005080201 A1 20050414
DOCDB simple family (application)
FR 0300305 W 20030131; AU 2003222349 A 20030131; BR 0307487 A 20030131; CA 2474720 A 20030131; CN 03803579 A 20030131; CN 200610055069 A 20030131; EP 03717364 A 20030131; FR 0201549 A 20020208; JP 2003565607 A 20030131; KR 20047012270 A 20030131; MX PA04007669 A 20030131; US 50337504 A 20040803