Title:
METHOD FOR PRODUCING 5-HYDROXYMETHYL FURFURAL
Document Type and Number:
WIPO Patent Application WO/2013/146085
Kind Code:
A1
Abstract:
The present invention relates to: a method for producing 5-hydroxymethyl furfural (HMF), which comprises the steps a-c described below; and a method for producing 5-hydroxymethyl furfural oxide, which comprises the steps a-d described below. Each of the methods simply and economically produces high-purity 5-hydroxymethyl furfural or an oxide thereof from a starting sugar material.
Step a: A step wherein the staring sugar material is subjected to a dehydration reaction in the presence of a reaction solvent, thereby producing HMF in the reaction solvent and obtaining a reaction solvent containing HMF.
Step b: A step wherein HMF is extracted from the reaction solvent containing HMF, which has been obtained in step a, into a hydrophobic solvent, thereby obtaining a hydrophobic solvent containing HMF.
Step c: A step wherein HMF is extracted from the hydrophobic solvent containing HMF, which has been obtained in step b, into water, thereby obtaining an aqueous solution containing HMF.
Step d: A step wherein HMF which has been obtained in step c is oxidized.
Inventors:
WATANABE MASAHIKO (JP)
YASHIRO KAI (JP)
NISHI TAKAFUMI (JP)
YASHIRO KAI (JP)
NISHI TAKAFUMI (JP)
Application Number:
PCT/JP2013/055559
Publication Date:
October 03, 2013
Filing Date:
February 28, 2013
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
C07D307/46
Domestic Patent References:
| WO1992010486A1 | 1992-06-25 | |||
| WO2001072732A2 | 2001-10-04 |
Foreign References:
| JP2009215172A | 2009-09-24 | |||
| JP2007261990A | 2007-10-11 | |||
| JPH0288569A | 1990-03-28 | |||
| JP2011084540A | 2011-04-28 |
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (JP)
Tamotsu Otani (JP)
Tamotsu Otani (JP)
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