Method for producing dianhydrohexitol with a step of distillation on a thin-film evaporator
US10533017B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Mar 16, 2017 |
| Grant date | Jan 14, 2020 |
| Priority date | — |
| Expiry date | Mar 16, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D3/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.