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Composite adsorbent and preparation method and application thereof

A composite adsorption and composite powder technology, which is applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., can solve problems that hinder the promotion and use of sepiolite, difficult recycling of wastewater treatment, and unfavorable industrialization. Achieve the effects of enriching surface properties, improving alternating performance, and improving adsorption performance

Active Publication Date: 2018-08-21
广州鑫材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because sepiolite adsorption treatment wastewater is not easy to recycle, regeneration is difficult, and it is not conducive to industrialization, which hinders the promotion and use of sepiolite.

Method used

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  • Composite adsorbent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0027] (1) Preparation of composite powder gel: Take 15 parts of dedecyltrimethylphosphine bromide modified rectorite powder and 20 parts of tetraethylenepentamine modified sepiolite powder and disperse them in 100 parts of toluene and ultrasonically oscillate at room temperature for 1 hour, then warm up to 65°C, slowly add 20 parts of tetraethyl orthosilicate dropwise, and continue to stir until the solution becomes a solid phase; wash the solid phase with distilled water until the mass remains unchanged, Dry for 3 hours to obtain a composite powder gel;

[0028] (2) Preparation of modified composite adsorbent: Add the modified composite powder gel obtained in step (1) to 10 parts of quaternary ammonium salt tetramer surfactant, 6 parts of chitosan and 50 parts of toluene solvent Mix and stir evenly, then transfer the mixture to a polytetrafluoroethylene hydrotherma...

Embodiment 2

[0031] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0032] (1) Preparation of composite powder gel: take 30 parts of dedecyltrimethylphosphorus chloride modified rectorite powder and 20-40 parts of triethylenetetramine modified sepiolite powder and disperse them in 180 parts in N,N-dimethylformamide, and ultrasonically shake at room temperature for 2 hours, then raise the temperature to 75°C, slowly add 30 parts of tetraethyl orthosilicate dropwise, and continue stirring until the solution becomes a solid phase; wash with distilled water Solid phase until the mass remains unchanged, dry at 110°C for 3 hours to obtain a composite powder gel;

[0033](2) Preparation of modified composite adsorbent: Add the modified composite powder gel obtained in step (1) to 15 parts of quaternary ammonium salt tetramer surfactant, 12 parts of chitosan and 80 parts of toluene solvent Mix and stir evenly, then transfer the mixture to a ...

Embodiment 3

[0036] A preparation method of an adsorbent for petrochemical wastewater treatment, comprising the steps of:

[0037] (1) Preparation of composite powder gel: Take 20 parts of cetyltriphenylphosphine chloride modified rectorite powder and 30 parts of ethylenediamine modified sepiolite powder and disperse them in 140 parts of N , in N-dimethylacetamide, and ultrasonically shake at room temperature for 1.5h, then raise the temperature to 70°C, slowly add 25 parts of tetraethyl orthosilicate dropwise, and continue to stir until the solution becomes a solid phase; wash the solid phase with distilled water Phase until the quality remains unchanged, dry at 105°C for 5 hours to obtain a composite powder gel;

[0038] (2) Preparation of modified composite adsorbent: Add the modified composite powder gel obtained in step (1) to 12 parts of quaternary ammonium salt tetramer surfactant, 9 parts of chitosan and 70 parts of toluene solvent Mix and stir evenly, then transfer the mixture to...

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Abstract

The invention provides a composite adsorbent, wherein the specific preparation steps of the adsorbent comprise: (1) preparing a composite powder gel; (2) preparing the modified composite adsorbent; and (3) preparing a magnetic composite crosslinking adsorbent. The adsorbent takes a composite of modified rectorite and modified sepiolite as the basic adsorbent material, wherein organic groups are introduced onto the surfaces of the modified rectorite and sepiolite, the surface property is greatly enriched, and the adsorption property is improved; the rectorite and the sepiolite are used in a combination way, give play to the respective advantages, and act synergistically, different types of organic and inorganic pollutants in different molecular sizes are selectively adsorbed, the adsorptionproperty is also greatly improved, and the scope of application is greatly expanded; in addition, due to the magnetic property, the adsorbent is completely recycled within 20 minutes in the magneticfield after finishing adsorbing, and the extra treatment like filtering, settling and centrifuging is not needed.

Description

[0001] This application is a divisional application, the application number of the original application is 201610555322.1, the application date is July 15, 2016, and the title of the invention is "an adsorbent for petrochemical wastewater treatment and its preparation method". technical field [0002] The invention belongs to the technical field of waste water treatment, and in particular relates to a composite adsorbent and its preparation method and application. Background technique [0003] With the development of the economy, there are more and more chemical plants in various places, and the treatment of industrial sewage has become a hot spot of concern from all walks of life. The discharge of traditional electroplating, tanning, metal surface treatment, printing and dyeing, petrochemical and other organic pollutants is increasing. Increase. [0004] Petrochemical industry is an important part of the chemical industry, plays an important role in the development of the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F103/34
CPCB01J20/0229B01J20/12B01J20/165B01J20/22B01J20/24B01J20/264B01J20/267B01J20/28009B01J20/28016B01J2220/48C02F1/28C02F1/281C02F1/285C02F1/286C02F2103/365
Inventor 叶澄
Owner 广州鑫材科技有限公司
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