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1. (WO2018085174) PROCESS FOR THE RECOVERY OF FURFURAL

Pub. No.:    WO/2018/085174    International Application No.:    PCT/US2017/058936
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
EHRENREICH-GUREJA, Charu
LANGE, Paul Andre Marie Joseph Ghislain
Title: PROCESS FOR THE RECOVERY OF FURFURAL
Abstract:
A process for the extraction of furfural from a composition comprising furfural, water, at least one organic acid and an oxygenate solvent with a boiling point higher than that of furfural. The process includes: (a) subjecting the composition to a first liquid-liquid separation step to provide: (i) an organic phase; (b) subjecting the organic phase of step (a) to a first distillation step to provide: (i) a first top stream; (c) subjecting the first top stream of step (b) to a second liquid-liquid separation step to provide: (i) a second top stream; and (d) subjecting the second top stream of step (c) to a second distillation step to provide: (i) a third top stream comprising a furfural-water azeotrope, and (ii) a third bottom stream comprising furfural.