Title:
CATALYST FOR PREPARING GLYCERIC ACID BY EFFICIENT CATALYTIC OXIDATION OF GLYCEROL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/213493
Kind Code:
A1
Abstract:
The present invention relates to a catalyst for preparing glyceric acid by the efficient catalytic oxidation of glycerol, and a preparation method therefor and the use thereof. The catalyst is Pt1+CCo/CaCoTiO3, wherein the XRD diffraction diagram of a carrier of CaCoTiO3 has perovskite structure characteristic diffraction peaks appearing at 2θ of 23.39°, 33.32°, 39.29°, 41.11°, 59.54° and 69.97°, which belong to the crystal faces (200), (022), (-113), (-222), (400), (-224) and (440) in CaCoTiO3, respectively; CaCoTiO3, as a carrier, is a monoclinic crystal structure, JCPDS34-0394; and Pt and Co are present in the form of nanoparticles with an average particle size of 2 nm ± 0.2 nm. In the present invention, due to the coexistence of the single Pt atoms (represented by Pt1) and Pt clusters (represented by PtC), a synergistic catalysis effect is achieved for the catalyst; in the reaction for preparing the glyceric acid by the oxidation of glycerol, the C-H bond of glycerol and the C-H bond of aldehyde groups are activated at the single Pt atom sites, the O-H bond of glycerol is activated at the Pt cluster site, and the insertion of OH* (a new substance of hydroxyl) and removal of acid (acid substances present in the reaction system) are achieved.
Inventors:
AN ZHE (CN)
HE JING (CN)
HUANG ZEYU (CN)
ZHU YANRU (CN)
SONG HONGYAN (CN)
WANG WENLONG (CN)
HE JING (CN)
HUANG ZEYU (CN)
ZHU YANRU (CN)
SONG HONGYAN (CN)
WANG WENLONG (CN)
Application Number:
PCT/CN2021/103966
Publication Date:
October 13, 2022
Filing Date:
July 01, 2021
Export Citation:
Assignee:
UNIV BEIJING CHEM TECH (CN)
International Classes:
B01J23/78; C07C51/23; C07C59/10
Foreign References:
| CN109621951A | 2019-04-16 | |||
| CN109946358A | 2019-06-28 | |||
| US20140206527A1 | 2014-07-24 | |||
| JPH05331100A | 1993-12-14 |
Attorney, Agent or Firm:
BEIJING INNOTECH INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF: