Method for preparing 2,5-furandicarboxylic acid compound
AssigneeJiangsu Celluranics New Material Technology Co., Ltd.
InventorsHu Wang, Neng Guo
Life of this patent
Estimating the term…
Abstract
Discloses in the present invention is a method for preparing a 2,5-furandicarboxylic acid (FDCA) compound. The method includes: providing a hexose diacid compound, an acid catalyst, and an ionic liquid; and dehydrating the hexose diacid compound in the ionic liquid under the catalysis of the acid catalyst to form the 2,5-furandicarboxylic acid compound; wherein the ionic liquid includes a cationic moiety selected from pyridinium, pyridazinium, pyrimidinium, pyrazinium, oxazinium, thiazinium, imidazolium, pyrazolium, thiazolium, isothiazolium, oxazolium, isoxazolium, and triazolium, as well as an anionic moiety selected from halogen anions.
Claims20
A method for preparing a 2,5-furandicarboxylic acid (FDCA) compound, comprising:
- providing a hexose diacid compound, an acid catalyst, and ionic liquid;
- and
- dehydrating the hexose diacid compound in the ionic liquid in the presence of the acid catalyst to give the 2,5-furandicarboxylic acid compound;
- wherein the ionic liquid comprises a cation moiety selected from the group consisting of pyridinium, pyridazinium, pyrimidinium, pyrazinium, oxazinium, thiazinium, imidazolium, pyrazolium, thiazolium, isothiazolium, oxazolium, isoxazolium, or triazolium, and an anion moiety selected from halogen anions.
Dependencies are inferred from the claim text.