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

Preparation method of 2,5-furandicarboxylic acid

A furandicarboxylic acid and catalyst technology, which is applied in the chemical industry, can solve the problems of wasteful storage of raw materials, easy spontaneous oxidation and deterioration, and difficulty in ensuring purity, and achieves the effects of no energy waste, excellent catalytic performance, and good hydrogen production capacity by electrolysis of water.

Active Publication Date: 2021-10-22
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to the active aldehyde groups on HMF, it is easy to spontaneously oxidize and deteriorate under normal temperature and pressure conditions, the purity is not easy to guarantee, and it will also cause problems in raw material waste and storage.

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
  • Preparation method of 2,5-furandicarboxylic acid
  • Preparation method of 2,5-furandicarboxylic acid
  • Preparation method of 2,5-furandicarboxylic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] (1) Put 1500mg of sublimated sulfur powder in the corundum boat of the tube furnace, seal it and dry it in 100mL / min nitrogen atmosphere at 30°C for 2h to remove the contained moisture.

[0113] (2) Submerge 280mg of cobalt foam in absolute ethanol and ultrasonically clean it for 10min, and then dry it at 60°C for 4h.

[0114] (3) the dry sublimed sulfur powder that step (1) obtains and the cobalt foam that obtains in the step (2) are placed in the corundum boat of tube furnace jointly, pass into high-purity nitrogen as full-range protective gas after sealing, wherein nitrogen The flow rate was 50mL / min; the temperature was raised to 350°C at a rate of 5°C / min, and after holding for 0.5h, it was naturally cooled to room temperature to obtain the precursor. Among them, the mass ratio of sublimated sulfur powder to cobalt foam is 5.4:1.

[0115] (4) The precursor obtained in step (3) is used as the anode, the graphite rod is used as the cathode, and the mercury / mercuric ...

Embodiment 2

[0117] (1) Put 1500mg of sublimated sulfur powder in the corundum boat of the tube furnace, seal it and dry it in 100mL / min nitrogen atmosphere at 30°C for 2h to remove the contained moisture.

[0118] (2) Submerge 500 mg of cobalt foam in absolute ethanol and ultrasonically clean it for 10 min, and then dry it at 60° C. for 4 h.

[0119] (3) the dry sublimed sulfur powder that step (1) obtains and the cobalt foam that obtains in the step (2) are placed in the corundum boat of tube furnace jointly, pass into high-purity nitrogen as full-range protective gas after sealing, wherein nitrogen The flow rate was 50mL / min; the temperature was raised to 350°C at a rate of 5°C / min, and after holding for 0.5h, it was naturally cooled to room temperature to obtain the precursor. Among them, the mass ratio of sublimated sulfur powder to cobalt foam is 3:1.

[0120] (4) The precursor obtained in step (3) is used as the anode, the graphite rod is used as the cathode, and the mercury / mercur...

Embodiment 3

[0123] (1) Put 500mg of sublimated sulfur powder in a corundum boat of a tube furnace, seal it and dry it in a nitrogen atmosphere of 100mL / min at 30°C for 2h to remove the contained moisture.

[0124] (2) Submerge 280mg of cobalt foam in absolute ethanol and ultrasonically clean it for 10min, and then dry it at 60°C for 4h.

[0125] (3) the dry sublimed sulfur powder that step (1) obtains and the cobalt foam that obtains in the step (2) are placed in the corundum boat of tube furnace jointly, pass into high-purity nitrogen as full-range protective gas after sealing, wherein nitrogen The flow rate was 50mL / min; the temperature was raised to 350°C at a rate of 5°C / min, and after holding for 0.5h, it was naturally cooled to room temperature to obtain the precursor. Among them, the mass ratio of sublimated sulfur powder to cobalt foam is 1.8:1.

[0126] (4) The precursor obtained in step (3) is used as the anode, the graphite rod is used as the cathode, and the mercury / mercuric ...

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
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of 2,5-furandicarboxylic acid, which at least comprises the following steps: in an electrolytic tank, taking a catalyst as an anode, carrying out catalytic oxidation on electrolyte, and reacting to obtain 2,5-furandicarboxylic acid, wherein the catalyst comprises a carrier and a catalytic active substance, the carrier is a cobalt-based substrate material, the catalytic active substance takes the carrier as a cobalt source and grows on the surface of the carrier in a self-source manner, the morphology of the catalytic active substance is hydrangea-shaped nanospheres. According to the method for preparing 2,5-furandicarboxylic acid through electrocatalytic oxidation and the electrode system provided by the invention, a self-grown integral hydrangea-shaped hydroxyl cobalt oxide nanosphere catalyst is used as an anode catalyst, and the catalyst has very high selectivity on FDCA, so that the high purity of the product is ensured, and the yield is very high; meanwhile, the FDCA Faraday efficiency is close to 100%, the energy utilization rate is high, and energy waste is hardly caused; besides, good water electrolysis hydrogen production capacity is achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a preparation method of 2,5-furandicarboxylic acid. Background technique [0002] Many polyesters synthesized with terephthalic acid (PTA) as the main raw material, such as polyethylene terephthalate (PET), have been widely used in daily production and life due to their excellent performance. However, the current industrial terephthalic acid is a petroleum-based chemical, and its production needs to consume a large amount of non-renewable petroleum fossil resources, which is not conducive to sustainable development. Therefore, people are actively seeking other bio-based chemicals to replace PTA as raw materials to synthesize bio-based polyesters. In 2004, the U.S. Department of Energy announced twelve bio-based platform compounds: 2,5-furandicarboxylic acid, 1,4-dicarboxylic acid (succinic acid, fumaric acid, malic acid), levulinic acid, 3-hydroxy Propioni...

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 Applications(China)
IPC IPC(8): C25B3/23C25B3/05C25B3/07C25B11/077B01J35/08B01J35/02B01J23/75B01J35/00
CPCC25B11/04B01J23/75B01J35/40B01J35/51Y02P20/584
Inventor 谌春林周振强张建
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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