公开(公告)号：US09518035B2

公开(公告)日：2016-12-13

申请号：US15015890

申请日：2016-02-04

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo Lee ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Ji Sik Choi ,  Hyejeong Lee ,  Hye Jin Lee

IPC: C07D301/02 ,  C07D317/20

CPC classification number: C07D301/02 ,  C07D317/20

Abstract: A method for preparing glycidol using glycerol includes mixing glycerol with urea in the presence of at least one zinc-based catalyst selected from the group consisting of Zn(NO3)2, ZnCl2, ZnO and Zn(OAc)2 under a pressure of 0.5-10 kPa at a temperature of 100-170° C. to obtain glycerol carbonate; filtering the glycerol carbonate mixed with the zinc-based catalyst through an adsorbent including a polymer resin coordinated with amine groups to separate the zinc-based catalyst and glycerol carbonate from each other; and carrying out reaction of the glycerol carbonate separated from the zinc-based catalyst in the presence of an anion alkali metal salt catalyst that is Na, K, Rb, Cs or a mixture thereof containing at least one anion selected from the group consisting of Cl−, Br−, I−, NO3−, NO2− and acetate under a pressure of 0.13-6.67 kPa at a temperature of 140-250° C. to obtain glycidol.

Abstract translation: 使用甘油制备缩水甘油的方法包括在至少一种选自Zn（NO 3）2，ZnCl 2，ZnO和Zn（OAc）2）的锌基催化剂的存在下，在0.5- 在100-170℃的温度下10kPa，得到碳酸甘油酯; 通过包含与胺基配位的聚合物树脂的吸附剂过滤与锌基催化剂混合的甘油碳酸酯，以将锌基催化剂和甘油碳酸酯彼此分离; 在Na，K，Rb，Cs的阴离子碱金属盐催化剂或其含有至少一种选自Cl的阴离子的混合物的存在下进行从锌基催化剂分离的碳酸甘油酯的反应 - ，Br-，I-，NO 3 - ，NO 2 - 和乙酸盐，在温度为140-250℃的温度下，在0.13-6.67kPa的压力下进行，得到缩水甘油。