EP 3122714 A1 20170201 - METHOD OF RECOVERING CARBOXYLIC ACIDS FROM DILUTE AQUEOUS STREAMS
Title (en)
METHOD OF RECOVERING CARBOXYLIC ACIDS FROM DILUTE AQUEOUS STREAMS
Title (de)
VERFAHREN ZUR RÜCKGEWINNUNG VON CARBOXYLSÄUREN AUS VERDÜNNTEN WÄSSRIGEN STRÖMEN
Title (fr)
PROCÉDÉ DE RÉCUPÉRATION D'ACIDES CARBOXYLIQUES À PARTIR DE FLUX AQUEUX DILUÉS
Publication
Application
Priority
- US 201414222967 A 20140324
- US 2014065887 W 20141117
Abstract (en)
[origin: WO2015147918A1] Improvement in separating lower carboxylic acids from aqueous streams via liquid-liquid extraction with pressurized liquefied propylene and/or propane, wherein carboxylic acid is transferred from the aqueous phase into the liquid solvent phase (extract). The extracted carboxylic acids are recovered as a liquid concentrate by evaporating off the propylene and/or propane solvent from the extract at mild temperatures.
IPC 8 full level
C07C 45/80 (2006.01)
CPC (source: EP)
C07C 45/80 (2013.01); C07C 51/48 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015147918 A1 20151001; CN 106164032 A 20161123; EP 3122714 A1 20170201; EP 3122714 A4 20171101; SG 11201607867P A 20161028
DOCDB simple family (application)
US 2014065887 W 20141117; CN 201480077468 A 20141117; EP 14887479 A 20141117; SG 11201607867P A 20141117