title: Production of furfural from xylose at atmospheric pressure by dilute sulfuric acid and inorganic salts.
abstract: In this paper, the dehydration of xylose to furfural was carried out under atmospheric pressure and at the boiling temperature of a biphasic mixture of toluene and an aqueous solution of xylose, with sulfuric acid as catalyst plus an inorganic salt (NaCl or FeCl(3)) as promoter. The best yield of furfural was 83% under the following conditions: 150 mL of toluene and 10 mL of aqueous solution of 10% xylose (w/w), 10% H(2)SO(4) (w/w), 2.4g NaCl , and heating for 5h. FeCl(3) as promoter was found to be more efficient than NaCl. The addition of DMSO to the aqueous phase in the absence of an inorganic salt was shown to improve the yield of furfural.
authors.affiliation: College of Chemistry, Jilin University, Changchun, People's Republic of China.
authors.forename: Chunguang
authors.initials: C
authors.lastname: Rong
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Ding
authors.forename: Yanchao
authors.initials: Y
authors.lastname: Zhu
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Lili
authors.initials: L
authors.lastname: Wang
authors.forename: Yuning
authors.initials: Y
authors.lastname: Qu
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Ma
authors.forename: Zichen
authors.initials: Z
authors.lastname: Wang
mesh_terms: D001274:Atmospheric Pressure; D002712:Chlorides / Q000737:chemistry*; D005290:Ferric Compounds / Q000737:chemistry*; D005662:Furaldehyde / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry*; D013464:Sulfuric Acids / Q000737:chemistry*; D014994:Xylose / Q000737:chemistry*
chemical_list: D002712:Chlorides; D005290:Ferric Compounds; D013464:Sulfuric Acids; D012965:Sodium Chloride; D014994:Xylose; D005662:Furaldehyde; C033158:sulfuric acid; C024555:ferric chloride