Invention Grant
- Patent Title: Process for the recovery of furfural
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Application No.: US16346361Application Date: 2017-10-30
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Publication No.: US10562874B2Publication Date: 2020-02-18
- Inventor: Juben Nemchand Chheda , Charu Ehrenreich-Gureja , Jean Paul Andre Marie Joseph Ghislain Lange
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL OIL COMPANY
- Current Assignee: SHELL OIL COMPANY
- Current Assignee Address: US TX Houston
- International Application: PCT/US2017/058936 WO 20171030
- International Announcement: WO2018/085174 WO 20180511
- Main IPC: C07D307/02
- IPC: C07D307/02 ; C07D307/48 ; B01D3/14 ; B01D3/36 ; C07D307/50

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.
Public/Granted literature
- US20190270716A1 PROCESS FOR THE RECOVERY OF FURFURAL Public/Granted day:2019-09-05
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