Invention Grant
- Patent Title: Method for producing dianhydrohexitol with a step of distillation on a thin-film evaporator
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Application No.: US16085903Application Date: 2017-03-16
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Publication No.: US10533017B2Publication Date: 2020-01-14
- Inventor: Hervé Wyart , Mathias Ibert
- Applicant: ROQUETTE FRERES
- Applicant Address: FR Lestrem
- Assignee: ROQUETTE FRERES
- Current Assignee: ROQUETTE FRERES
- Current Assignee Address: FR Lestrem
- Agency: Oliff PLC
- Priority: FR1652236 20160316
- International Application: PCT/FR2017/050608 WO 20170316
- International Announcement: WO2017/158303 WO 20170921
- Main IPC: C07D493/04
- IPC: C07D493/04 ; B01D1/22 ; B01D3/14
Abstract:
A method for producing 1,4:3,6-dianhydrohexitols, including the steps of: a) supplying at least one hexitol, b) dehydrating the hexitol, and c) distillating the dehydration product produced in step b), wherein: the hexitol is supplied in the form of an aqueous solution in step a); and the distillation is carried out by means of a thin-film evaporator in step c).
Public/Granted literature
- US20190092782A1 METHOD FOR PRODUCING DIANHYDROHEXITOL WITH A STEP OF DISTILLATION ON A THIN-FILM EVAPORATOR Public/Granted day:2019-03-28
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