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an electrolytic catalyst

A catalyst and mixed solution technology, applied in the field of electrolytic catalysts, can solve the problems of high energy consumption and high operating costs, and achieve the effects of uniform dispersion, wide applicability, and increased treatment effect.

Active Publication Date: 2020-07-10
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

An electrolysis catalyst belongs to the field of electrolysis catalysts. It is characterized in that, in terms of mass percentage, the contents of each component of the catalyst are as follows: Zn 1.3%~1.5%, Ni 1.3%~1.5%, Mn 1.3%~1.5%, and the balance is carrier; the carrier is macroporous polymer. Styrene resin. In the preparation method, Zn containing metal ions is utilized 2+ ,Ni 2+ ,Mn 2+ The mixed solution is reacted at a reaction temperature of 30°C to 55°C, and the reaction time is 120min to 240min. This catalyst can be used directly after preparation. There is no need to mix the catalyst precursor during use, and the recovery and regeneration of the catalyst can be done at one time without screening during the recovery process. This solves the problem of traditional catalysts due to the small particle size of the catalyst. , cannot be screened separately after mixing, resulting in difficulty in regeneration after use for a period of time.

Description

technical field [0001] An electrolytic catalyst belongs to the field of electrolytic catalysts. 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 OH produced in the electrolysis...

Claims

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Application Information

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Patent Type & Authority Patents(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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