公开(公告)号：US20210253545A1

公开(公告)日：2021-08-19

申请号：US17167886

申请日：2021-02-04

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Dong Won HWANG ,  Young Kyu HWANG ,  Ma Eum LEE ,  Pravin Pandharinath Upare ,  Do Young HONG

IPC: C07D307/50 ,  B01J31/02

Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural.
Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.

公开(公告)号：US20250059148A1

公开(公告)日：2025-02-20

申请号：US18701820

申请日：2022-10-20

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Dong Won HWANG ,  In Yong EOM ,  Young Kyu HWANG ,  Ma Eum LEE

IPC: C07D307/48

Abstract: According to the present disclosure, by forming normal pressure conditions in a reaction system through application of a reflux system to an aqueous phase in the presence of sulfuric acid and an inorganic salt in the dehydration reaction of biomass-derived sugar components in an open system, there is no need to include a high-pressure vessel required in a conventional 5-halomethylfurfural production process, there is no risk of safety accidents, including the explosion of a high-pressure vessel and the leakage of strong acid gas, and there is a remarkable effect in that yield is improved three-fold or more compared to the case of using a conventionally used acid catalyst under the normal pressure conditions.

公开(公告)号：US20220062880A1

公开(公告)日：2022-03-03

申请号：US17341474

申请日：2021-06-08

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Young Kyu HWANG ,  Anil Haribhau VALEKAR ,  Ma Eum LEE ,  Kyung Ryul OH ,  Do Young HONG

IPC: B01J31/16 ,  B01J31/22 ,  B01J37/04 ,  B01J37/06 ,  B01J37/00 ,  B01J37/10 ,  C07D307/44 ,  C07D307/58 ,  C07C29/141 ,  C07C29/145 ,  C07C37/055

Abstract: The present disclosure relates to an organometallic framework modified using a compound having a hydroxyl group (—OH), a catalyst for a hydrogenation reaction including the same, and a method of manufacturing the same. The catalyst according to the present disclosure has high activity to the hydrogenation reaction even at a low temperature of 30 to 40° C., thus making low-grade waste heat usable.