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US 12,509,433 B2Granted
Process for the production of furfural using a water immiscible organic solvent
AssigneeCovation, Inc.
InventorsKeith W Hutchenson, Torren Ryan Carlson, Jacob G Dickinson, David William Drew, Paul Joseph Fagan, Francis G Gallagher, Isabel Liberis, Kenneth E Mersman, Gregg Sunshine
Life of this patent
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Abstract
The disclosure relates to an efficient process for the production of a furan derivative from C5 and/or C6 sugars. The process utilizes a water immiscible organic solvent system comprising at least one alkyl phenol and at least one alkylated naphthalene.
Claims11
A process comprising:
- A) contacting an aqueous feedstock comprising one or more C5 and/or C6 sugars with an acid catalyst in the presence of a water immiscible organic solvent at a temperature in the range of from 90° C. to 250° C. to form a furan derivative and a residual aqueous feedstock;
- B) separating the residual aqueous feedstock from the water immiscible organic solvent;
- C) optionally, isolating the furan derivative from the water immiscible organic solvent;
- and
- D) optionally, removing residual water or impurities from the water immiscible organic solvent;
- wherein the water immiscible organic solvent comprises a mixture of at least one alkyl phenol and at least one alkylated naphthalene.
3 more elements
A composition comprising furfural or 5-hydroxymethyl furfural, at least one alkyl phenol, at least one alkylated naphthalene and in the range of from 0 to 5% by weight of humins.
Dependencies are inferred from the claim text.