Invention Grant
- Patent Title: Process for the recovery of furfural
-
Application No.: US16346398Application Date: 2017-10-30
-
Publication No.: US10584107B2Publication Date: 2020-03-10
- 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/US2017/058939 WO 20171030
- International Announcement: WO2018/085176 WO 20180511
- Main IPC: C07D307/02
- IPC: C07D307/02 ; C07D307/50 ; C07D307/48

Abstract:
Disclosed is a process for the extraction of furfural which includes: (a) 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 providing: (i) an organic phase, and (ii) an aqueous phase; (b) subjecting the aqueous phase of step (a) to a first distillation step to provide: (i) a first in top stream comprising a furfural-water azeotrope; (c) subjecting the first top stream of step (b) to a second separation step to provide: (i) a second top stream comprising a portion of the furfural-water azeotrope; (d) subjecting the second top stream of step (c) to a second distillation step to provide: (i) a third top stream enriched with the furfural-water azeotropic mixture; (e) subjecting the organic phase of step (a) to a third distillation step to provide: a fourth top stream comprising furfural.
Public/Granted literature
- US20190263767A1 PROCESS FOR THE RECOVERY OF FURFURAL Public/Granted day:2019-08-29
Information query