A kind of preparation method of nonionic surfactant adsorption material

A non-ionic surface, adsorption material technology, applied in the field of preparation of waste water treatment materials, can solve the problems of the need to improve adsorption efficiency, low adsorption capacity, etc., and achieve the effects of low cost, high adsorption efficiency and good absorption effect

Active Publication Date: 2018-07-27
JUHUA GROUP TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that the actual adsorption capacity is still low, and the resin can easily reach the saturated adsorption capacity during use, which requires repeated regeneration and frequent updates, and the adsorption efficiency needs to be improved

Method used

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  • A kind of preparation method of nonionic surfactant adsorption material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step (1) swelling

[0024] Add 100Kg of dichloroethane and 15Kg of styrene-based macroporous adsorbent SD200 into a 500L reactor, stir at 25°C for 3h, and filter out the dichloroethane.

[0025] Step (2) epoxidation reaction

[0026] In the reaction kettle of step (1), add 70Kg of deionized water and 2Kg of sodium tungstate to the material after filtering dichloroethane, and dropwise add 30Kg of hydrogen peroxide with a mass percentage concentration of 30% for reaction, and the reaction temperature is 60°C , the reaction time is 4h, after the reaction is completed, the product is obtained by filtering and drying. The resulting product number is JH-1.

Embodiment 2

[0028] Step (1) swelling

[0029] Add 100Kg of dichloroethane and 10Kg of styrene-based macroporous adsorbent SD300 into a 500L reactor, stir at 25°C for 2h, and filter out the dichloroethane.

[0030] Step (2) epoxidation reaction

[0031] In the reaction kettle of step (1), add 50Kg deionized water, 0.5Kg sodium tungstate to the material after filtering dichloroethane, drip the hydrogen peroxide 20Kg that mass percent concentration is 30% to react, and reaction temperature is 50 ℃, the reaction time is 6h, after the reaction is completed, the product is obtained by filtering and drying. The resulting product number is JH-2.

Embodiment 3

[0033] Step (1) swelling

[0034] Add 100Kg of dichloroethane and 20Kg of styrene-based macroporous adsorbent SD600 into a 500L reactor, stir at 25°C for 6h, and filter out the dichloroethane.

[0035] Step (2) epoxidation reaction

[0036] In the reactor of step (1), add 100Kg of deionized water and 5Kg of sodium tungstate to the material after filtering dichloroethane, and dropwise add 40Kg of hydrogen peroxide with a mass percentage concentration of 30% for reaction, and the reaction temperature is 70°C , the reaction time is 2h, after the reaction is completed, filter and dry to obtain the product. The resulting product number is JH-3.

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Abstract

The invention discloses a preparation method of a nonionic surfactant adsorption material. The method comprises the steps of: (1) by weight, stirring 100 parts of dichloroethane and 10-20 parts of a styrene macroporous adsorbent at 25DEG C for 2-6 h, and filtering out dichloroethane; (2) adding 50-100 parts of deionized water, 0.5-5 parts of sodium tungstate and adding 20-40 parts of hydrogen peroxide with a mass percentage concentration of 30% into the material with dichloroethane filtered out in step (1), carrying out reaction at 50-70DEG C for 2-6 h, conducting filtering at the end of reaction, and performing drying to obtain a product. According to the invention, the product has the advantages of good absorption effect, strong adsorption capacity, high adsorption efficiency and low adsorption cost.

Description

technical field [0001] The invention relates to a preparation method of a waste water treatment material, in particular to a preparation method of a nonionic surfactant adsorption material. Background technique [0002] At present, non-ionic surfactants (such as OP-10) are usually added in the production of PTFE dispersion emulsions to increase the solid content of the emulsion and stabilize the emulsion, but the waste water produced contains a relatively high content of non-ionic surfactants and a certain amount of Resin, and the wastewater has high COD, good foaming performance, and poor biochemical properties, so it cannot directly enter the biochemical treatment device for treatment. Generally, the evaporation and concentration process is used for treatment, but its energy consumption is large, and the nonionic surfactant obtained by concentration (such as OP-10 ) is poor in quality, yellow in color, and contains more resin, so it cannot be used directly, and must be fur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28
CPCB01J20/22B01J2220/4812C02F1/285C02F2103/38
Inventor 王金明
Owner JUHUA GROUP TECH CENT
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