公开(公告)号：US20160221908A1

公开(公告)日：2016-08-04

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 ,  B01J31/02 ,  B01J31/08 ,  B01J21/18

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.

Abstract translation: 本发明提供一种在乙二醇类化合物的存在下使用固体酸催化剂制备乙酰丙酸的方法。 根据本发明的乙酰丙酸可以通过使用直链或环状的基于乙二醇的化合物作为溶剂并在固体酸催化剂存在下，在100-200℃的反应温度下从果糖制备乙酰丙酸 ，从而减少对温室气体排放法规对石油的依赖。 此外，可以从果糖获得高产量的乙酰丙酸，并且可以在反应完成后有效地分离，收集和再利用溶剂和催化剂。