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Electrolysis catalyst and preparation method thereof

A catalyst, sulfonation reaction technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve the problems of high energy consumption and high operating costs, and achieve dispersion Uniform, wide applicability, strong binding effect

Active Publication Date: 2018-03-09
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, during the operation of the catalyst, the electrode voltage to be applied is 10~36V, which results in high energy consumption and high operating costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the flask equipped with stirring, drop 100ml of chloroform, 20g of macroporous polystyrene resin particles, and the specific surface area of ​​macroporous polystyrene resin is 500m 2 / g ~550m 2 / g, pore volume 0.8m 3 / g ~1.7m 3 / g, pore size 3.6 nm ~4.7nm; at room temperature, under stirring, slowly add 30% oleum 50ml; at 60°C, sulfonate for 130min; after sulfonation, slowly add absolute ethanol to wash 3 times, and suction ; Then wash with deionized water until there is no SO in the washing liquid 4 2- , dried for later use, to prepare a pre-sulfonated carrier;

[0023] Prepare the mixed salt solution of Zn, Ni, Mn, Zn in the solution 2+ The mass fraction is 12.5%, Ni 2+ The mass fraction is 12.5%, Mn 2+ The massfraction of citric acid is 12.5%, then adds citric acid, and the massfraction of citric acid is 0.18%;

[0024] After the mixed salt solution is prepared, raise the temperature to 52°C, put the pre-sulfonated carrier into the solution, and carry out ...

Embodiment 2

[0027] In the flask equipped with stirring, drop 200ml of chloroform, 38g of macroporous polystyrene resin particles, and the specific surface area of ​​macroporous polystyrene resin is 400 m 2 / g ~520m 2 / g, pore volume 0.4 m 3 / g ~1.4m 3 / g, pore size 3.0 nm ~4.2nm; slowly add 40% oleum 100ml under stirring at room temperature; then sulfonate at 65°C for 125min; Suction filtration; then wash with deionized water until there is no SO in the washing liquid 4 2- , dried for later use, to obtain a pre-sulfonated carrier;

[0028] Prepare the mixed salt solution of Zn, Ni, Mn, Zn in the solution 2+ The mass fraction is 14%, Ni 2+ The mass fraction is 12%, Mn 2+ The massfraction of citric acid is 14%, then add citric acid, the massfraction of citric acid is 0.45%;

[0029] After the solution is prepared, raise the temperature to 53°C, put the pre-sulfonated resin into the solution, and perform ultrasonic reaction at a frequency of 13.5kHZ. After 150 minutes of reaction, fi...

Embodiment 3

[0032] In the flask that is equipped with stirring, drop into chloroform 300ml, macroporous polystyrene resin particle 66g, the specific surface area of ​​macroporous polystyrene resin is 460 m 2 / g ~600m 2 / g, pore volume 1.1m 3 / g ~2.0m 3 / g, pore size 3.8nm ~5.0nm; room temperature, under stirring, slowly add 50% oleum 150ml; then sulfonation at 55℃ for 145min; after sulfonation, slowly add absolute ethanol to wash 3 times, pump Filter; then wash with deionized water until there is no SO in the washing liquid 4 2- , dried for later use, to obtain a pre-sulfonated carrier;

[0033] Prepare the mixed salt solution of Zn, Ni, Mn, Zn in the solution 2+ The mass fraction is 12%, Ni 2+ The mass fraction is 14%, Mn 2+ The massfraction of citric acid is 12%, then add citric acid, the massfraction of citric acid is 0.19%;

[0034] After the solution is prepared, raise the temperature to 40°C, put the pre-sulfonated resin into the solution, and perform ultrasonic reaction at ...

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Abstract

The invention discloses an electrolysis catalyst and a preparation method thereof and belongs to the field of catalyst preparation. The electrolysis catalyst is characterized by comprising the following components in percentage by mass: 1.3-1.5% of Zn, 1.3-1.5% of Ni, 1.3-1.5% of Mn and the balance of a carrier, wherein the carrier is macropore polystyrene resin. The preparation method comprises the following step: enabling a mixed solution with metal ions Zn<2+>, Ni<2+> and Mn<2+> to react at reaction temperature of 30-55 DEG C for 120-240 minutes. The catalyst can be directly used after being prepared, a catalyst precursor does not need to be mixed before use, the catalyst can be recycled and regenerated at one time and does not need to be screened in the recycling process, and the problems that conventional catalysts cannot be respectively screened after being mixed because of small catalyst particle sizes and are hard to regenerate after being used for a certain time are solved.

Description

technical field [0001] An electrolytic catalyst and a preparation method thereof belong to the field of catalyst preparation. Background technique [0002] Difficult biochemical wastewater has many types and low COD, so it is difficult to rely on biological methods to treat it, which has a negative impact on the discharge and reuse of corporate wastewater. At present, advanced oxidation processes are commonly used at home and abroad to treat difficult-to-biochemical wastewater, but some advanced oxidation processes commonly used at present, such as Fenton reagent oxidation, ozone oxidation, wet oxidation, etc., have disadvantages such as high treatment costs or secondary pollution. Electrolytic catalytic oxidation is a promising method gradually developed in recent years. It has the advantages of strong oxidation ability, mild reaction conditions, simple operation and wide application range, and has gradually become a research hotspot in the field of sewage treatment. The O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/10C02F1/467
CPCC02F1/4672B01J31/10C02F2209/08C02F2103/343B01J35/33B01J35/617B01J35/638B01J35/615B01J35/635B01J35/633B01J35/647
Inventor 李波邹宗海潘咸峰刘婷婷黄斌解洪梅吕军杜毅
Owner CHINA PETROLEUM & CHEM CORP
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