Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Catalyst for efficiently catalyzing the oxidation of glycerol to glyceric acid, its preparation method and use

A high-efficiency technology for catalyzing glycerol and catalysts, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of poor selectivity, low catalytic activity, and catalyst deactivation. And other issues

Active Publication Date: 2022-01-28
BEIJING UNIV OF CHEM TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still many problems in the research reports, such as low catalytic activity, poor selectivity, limited reaction conditions (addition of alkali), catalyst deactivation, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalyst for efficiently catalyzing the oxidation of glycerol to glyceric acid, its preparation method and use
  • Catalyst for efficiently catalyzing the oxidation of glycerol to glyceric acid, its preparation method and use
  • Catalyst for efficiently catalyzing the oxidation of glycerol to glyceric acid, its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1 Sample-Pt 1+C Co / CaCoTiO 3 Catalyst (Pt 1+C Co / rCCT, where Co / rCCT is the reduced Co particles in perovskite)

[0046] The second sample is that Pt exists in the catalyst in the form of single atoms and clusters in Co particles, and the preparation method of the catalyst comprises the following steps:

[0047] 1) Preparation of carrier

[0048] Take 5.244g Ca(NO 3 ) 2 4H 2 O and 0.6467g Co(NO 3 ) 2 ·6H 2 O was dissolved in 30ml deionized water to prepare a mixed solution, stirred and mixed evenly, and then added C with 1.25 times the total molar number of metal ions 6 h 8 o 7 ·H 2 O (i.e. 11.667g citric acid monohydrate) continued to stir to obtain solution A;

[0049] Take an equal volume of 6.807g of tetrabutyl titanate and 6.8mL of absolute ethanol in another container and mix them uniformly to obtain solution B, which is clear and transparent;

[0050] Then, the solution B was added dropwise to the solution A, and after the dropwise addition...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a catalyst for efficiently catalyzing the oxidation of glycerin to prepare glyceric acid, its preparation method and application. The catalyst is Pt 1+C Co / CaCoTiO 3 , where the carrier CaCoTiO 3 The XRD characterization pattern of the perovskite structure features diffraction peaks at 2θ of 23.39°, 33.32°, 39.29°, 41.11°, 59.54° and 69.97°, which belong to CaCoTiO 3 (200), (022), (‑113), (‑222), (400), (‑224), (440) crystal planes in 3 It is a monoclinic crystal structure JCPDS34‑0394; and Pt and Co exist in the form of nanoparticles, with an average particle size of 2nm±0.2nm. Catalyst of the present invention is owing to Pt single atom (with Pt 1 ) and Pt clusters (with Pt C Indicates that) co-exist and form a synergistic catalytic effect. In the reaction of glycerol oxidation to glycerol, the Pt single-atom site activates the C-H bond of glycerol and the C-H bond of the aldehyde group, and the Pt cluster site activates glycerol O-H bond, and the insertion of OH* (new hydroxyl species) and the removal of acid (acid species present in the reaction system).

Description

technical field [0001] The invention relates to the fields of chemical engineering and catalysts, in particular to a catalyst for efficiently catalyzing glycerol oxidation to prepare glyceric acid and a preparation method thereof. Background technique [0002] Biomass energy is an ideal renewable alternative resource. In view of the excellent properties of biomass energy such as low pollution and renewability, the development and utilization of biomass energy have attracted extensive attention. Glycerol is a by-product produced during transesterification of biodiesel (100Kg of glycerol is produced for every ton of biodiesel produced), but its downstream conversion capacity is insufficient, resulting in overcapacity. Therefore, it is of great significance to catalyze the conversion of glycerol into high value-added products. [0003] Glyceric acid is a multifunctional high-value fine chemical, which can be used in the pharmaceutical and food industries, and is also an import...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/78C07C51/23C07C59/10
CPCB01J23/78C07C51/23C07C59/10
Inventor 安哲何静黄泽宇朱彦儒宋红艳王文龙
Owner BEIJING UNIV OF CHEM TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com