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1. (WO2018085179) PROCESS FOR THE RECOVERY OF FURFURAL

Pub. No.:    WO/2018/085179    International Application No.:    PCT/US2017/058942
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Tue Oct 31 00:59:59 CET 2017
IPC: C07D 307/48
C07D 307/50
Applicants: SHELL OIL COMPANY
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Inventors: CHHEDA, Juben Nemchand
LANGE, Paul Andre Marie Joseph Ghislain
Title: PROCESS FOR THE RECOVERY OF FURFURAL
Abstract:
Disclosed is a process for the extraction of furfural. The process includes subjecting a composition comprising furfural, water, at least one acid and an aromatic solvent, with a boiling point higher than that of furfural, to a first separation step in a first liquid-liquid separator providing a first organic phase and a first aqueous phase; conveying the first organic phase along a first line to a distillation column and subjecting the first organic phase to a distillation step providing a top stream comprising furfural and a bottom stream comprising the aromatic solvent; subjecting the first aqueous phase and a portion of the bottom stream to a second separation step providing a second organic phase; conveying the second organic phase along a second line which either feeds its contents into the first line or into the distillation column and subjecting the resultant mixture to said distillation step.