Invention Grant
- Patent Title: Method for preparing levulinic acid using solid acid catalyst in presence of ethylene glycol-based compound solvent derived from biomass
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Application No.: US14915564Application Date: 2014-08-28
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Publication No.: US09682912B2Publication Date: 2017-06-20
- Inventor: Jin Ku Cho , Sang Yong Kim , Do Hoon Lee , Jae Won Jeong
- Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
- Applicant Address: KR Cheonan-si
- Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
- Current Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
- Current Assignee Address: KR Cheonan-si
- Agency: STIP Law Group, LLC
- Priority: KR10-2013-0103058 20130829
- International Application: PCT/KR2014/008042 WO 20140828
- International Announcement: WO2015/030509 WO 20150305
- Main IPC: C07C51/00
- IPC: C07C51/00 ; B01J31/04 ; C07C51/573 ; C07C53/126 ; B01J21/18 ; B01J31/02 ; B01J31/08

Abstract:
Provided is a method for preparing levulinic acid using a solid acid catalyst in the presence of an ethylene glycol-based compound. The levulinic acid according to the present invention can be prepared by using a linear or cyclic ethylene glycol-based compound as a solvent and preparing the levulinic acid from fructose in the presence of the solid acid catalyst at a reaction temperature of 100 to 200° C., thereby reducing the dependency on petroleum in response to greenhouse gas emission regulations. Also, a high yield of levulinic acid can be obtained from fructose, and the solvent and the catalyst can be efficiently separated, collected, and reused after the reaction has completed.
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