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。

公开(公告)号：US20160207896A1

公开(公告)日：2016-07-21

申请号：US14915192

申请日：2014-08-28

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： JIN KU CHO ,  SANG YONG KIM ,  BO RA KIM ,  SEUNG HAN SHIN

IPC: C07D307/46

CPC classification number: C07D307/46

Abstract: Provided is a method for preparing 5-hydroxymethyl-2-furfural using an acid catalyst in the presence of an ethylene glycol-based solvent. The method for preparing the 5-hydroxymethyl-2-furfural involves using a linear or cyclic ethylene glycol-based compound as a solvent and producing the 5-hydroxymethyl-2-furfural from fructose, in the presence of the acid catalyst, thereby reducing the dependency on petroleum in response to greenhouse gas emission regulations. Also, a high yield of the 5-hydroxymethyl-2-furfural can be obtained from fructose, and the solvent and the catalyst can be efficiently separated, collected, and reused after a reaction has completed.

Abstract translation: 本发明提供一种在乙二醇系溶剂存在下使用酸催化剂制备5-羟甲基-2-糠醛的方法。 制备5-羟甲基-2-糠醛的方法涉及使用直链或环状的乙二醇基化合物作为溶剂，并在酸催化剂的存在下从果糖生产5-羟甲基-2-糠醛，从而减少 依赖于温室气体排放法规对石油的依赖。 此外，可以从果糖获得高收率的5-羟甲基-2-糠醛，并且可以在反应完成后有效地分离，收集和再使用溶剂和催化剂。