Coagulation of chitin from ionic liquid solutions using kosmotropic salts
US10927191B2 · kind B2 · utility
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Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods for separating chitin from a chitinous biomass are described, the methods comprising contacting the chitinous biomass with an ionic liquid to form a mixture comprising chitin; contacting the mixture with an aqueous solution of a kosmotropic salt, thereby coagulating the chitin and forming an biphasic system comprising an ionic liquid-chitin phase and an aqueous kosmotropic salt phase; separating the ionic liquid-chitin phase from the aqueous kosmotropic salt phase; and collecting the chitin from the separated ionic liquid-chitin phase, thereby forming a recycled ionic liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.