The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Sep. 24, 2018
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
The present invention relates to a method for producing furfural, including: obtaining a sugar solution containing at least one of a monosaccharide having 5 carbon atoms and a polysaccharide containing the monosaccharide having 5 carbon atoms by carrying out a reaction with a specific resource as a raw material in the presence of a catalyst in a solvent; converting at least one of the monosaccharide and the polysaccharide containing the monosaccharide in the sugar solution into furfural by a dehydration reaction, so as to obtain a reaction solution; and separating the reaction solution into an organic layer and an aqueous layer, wherein an aromatic hydrocarbon solvent having a density of from 0.90 g/cmto 1.1 g/cmat 25° C. and under atmospheric pressure is used, and wherein the reaction solution is separated at a temperature higher than 90° C. and lower than 150° C.