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Electrolytic catalytic oxidation device and method for preparing 2,5-furandicarboxylic acid

A technology for electrolytic catalytic oxidation and furandicarboxylic acid, which is applied in electrolytic process, electrolytic components, electrolytic organic production, etc., can solve the problems of increasing production cost, reducing catalytic performance, low utilization rate of raw materials, etc., and achieves easy separation and good product purity. , the effect of low equipment and technical requirements

Inactive Publication Date: 2020-06-26
ZHEJIANG SUGAR ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the processes for preparing cobalt tetroxide catalysts by hydrothermal-thermal decomposition require the participation of other chemical reagents such as templating agents or alkaline additives except for cobalt sources, and require higher reaction temperatures and longer reaction times. Low, but also increases the production cost, but also produces waste gas, waste liquid and other pollutants
In addition, most cobalt tetroxide catalysts are in the form of powder, and when they are directly used in the catalytic reaction process, they will face many problems such as uneven dispersion and separation difficulties; adding a binder to form a bulk material will hinder the mass transfer during the reaction process and reduce the catalytic performance. performance

Method used

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  • Electrolytic catalytic oxidation device and method for preparing 2,5-furandicarboxylic acid
  • Electrolytic catalytic oxidation device and method for preparing 2,5-furandicarboxylic acid
  • Electrolytic catalytic oxidation device and method for preparing 2,5-furandicarboxylic acid

Examples

Experimental program
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Effect test

preparation example Construction

[0068] The preparation method of the monolithic electrode comprises the following steps:

[0069] S100, preparation of solution: CoCl 2 or CoSO 4 Add water to form a solution.

[0070] In the present application, there is no particular limitation on the concentration of the prepared solution. In order to prepare a monolithic self-assembled cobalt tetraoxide nanosheet catalyst with excellent performance, enhance its catalytic stability and prolong its service life, preferably, CoCl 2 or CoSO 4 The molar ratio with water is 1:500~1:1400.

[0071] S200, hydrothermal reaction: put the solution obtained in step S100 in a reaction kettle, add nickel foam or nickel sheet or carbon paper or carbon fiber cloth and other substrates, keep warm at 120°C-180°C for 6h-24h, wash and dry get the precursor.

[0072] In step S200, there is no special limitation on the substrates such as nickel foam or nickel sheet or carbon paper or carbon fiber cloth to be added. In order to prepare a u...

Embodiment 1

[0082] (1) Add 0.476g CoCl to the beaker 2 ·6H 2 O, 50mL deionized water, stir well at room temperature. Among them, CoCl 2 The molar ratio with water is 1:1400.

[0083] (2) Transfer the solution prepared in step (1) to a 100mL reaction kettle, add a nickel foam base, make it immersed in the solution, put it in an oven and react at 120°C for 6h, take it out and rinse it twice with absolute ethanol , placed in a beaker, put into an oven and dried at 40° C. for 6 hours to obtain a precursor.

[0084] (3) Put the precursor obtained in step (2) in the quartz boat of the tube furnace, seal it and pass high-purity nitrogen gas as the whole process protective gas, wherein the flow rate of nitrogen gas is 100mL / min; The temperature was raised to 350 °C at a rate of 1 min, and after holding for 0.5 h, it was cooled to room temperature at a rate of 5 °C / min. The obtained product was the monolithic self-assembled cobalt trioxide nanosheet catalyst grown in situ on the nickel foam, w...

Embodiment 2

[0086] (1) Add 0.667g CoCl to the beaker 2 ·6H 2 O, 50mL deionized water, stir well at room temperature. Among them, CoCl 2 The molar ratio with water is 1:1000.

[0087] (2) With embodiment 1.

[0088] (3) Same as Example 1, the obtained sample is designated as sample 2.

[0089] Compared with Example 1, CoCl in the raw material used in this example 2 ·6H 2 The quality of O has changed, and the rest of the preparation conditions have not changed, with the CoCl 2 ·6H 2 With the increase of O quality, the size of the self-assembled cobalt trioxide nanosheets of the final catalyst becomes larger.

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Abstract

The invention discloses an electrolytic catalytic oxidation device, which comprises a cathode, an anode, an electrolytic solution and a power supply, wherein the anode is an integral electrode, the integrated electrode comprises a substrate and a catalytic active substance on the substrate, and the catalytic active substance comprises a tricobalt tetraoxide nanosheet. The device is used for preparing 2,5-furandicarboxylic acid through electrolytic catalytic oxidation.

Description

technical field [0001] The application relates to an electrolytic catalytic oxidation device and a method for preparing 2,5-furandicarboxylic acid by electrolytic catalytic oxidation, belonging to the field of electrophoresis production process methods. Background technique [0002] As of the first half of 2019, the number of cars in my country reached 250 million. Various plastics are used in the production of automobiles, such as polypropylene (PP), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), polyethylene terephthalate (PET) and other plastics are widely used in the production of instrument panels, door inner panels, and air-conditioning outlets for automotive interiors. However, these plastics are all petroleum-based plastics, and their production requires the consumption of a large amount of fossil resources. Moreover, after the car is scrapped, these plastics are difficult to degrade, which will cause serious solid waste pollution. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/02C25B3/23
CPCC25B3/23
Inventor 王磊金海涛张建谌春林杨勇卢国文
Owner ZHEJIANG SUGAR ENERGY TECH CO LTD
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