公开(公告)号：US09682912B2

公开(公告)日：2017-06-20

申请号：US14915564

申请日：2014-08-28

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Jin Ku Cho ,  Sang Yong Kim ,  Do Hoon Lee ,  Jae Won Jeong

IPC: C07C51/00 ,  B01J31/04 ,  C07C51/573 ,  C07C53/126 ,  B01J21/18 ,  B01J31/02 ,  B01J31/08

CPC classification number: C07C51/00 ,  B01J21/18 ,  B01J31/0229 ,  B01J31/04 ,  B01J31/08 ,  B01J31/10 ,  B01J2231/76 ,  B01J2231/766 ,  B01J2531/002 ,  C07C51/573 ,  C07C53/126 ,  Y02E50/343

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.