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A kind of reactive dye wastewater adsorbent and preparation method thereof

A technology of reactive dyes and adsorbents, applied in chemical instruments and methods, textile industry wastewater treatment, adsorption water/sewage treatment, etc., can solve the problems of environmental secondary pollution and dye wastewater treatment that have not been used before, and achieve easy Operational, easy access, efficient results

Active Publication Date: 2015-12-02
EASTERN LIAONING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Patent CN102151553B discloses a method of absorbing reactive dyes with waste newspaper deinking fibers. This method has the advantages of easy-to-obtain raw materials and low cost, but waste ink is produced during the preparation process, which brings secondary pollution to the environment.
[0007]At present, ionic liquid metal complexes are mainly used in the fields of catalysis and organic synthesis, but there is no application in the treatment of dye wastewater

Method used

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  • A kind of reactive dye wastewater adsorbent and preparation method thereof
  • A kind of reactive dye wastewater adsorbent and preparation method thereof
  • A kind of reactive dye wastewater adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] （1） Mix ethyl chloride and methylimidazole at a molar ratio of 1:1.05, and stir at 80°C for 48 hours to prepare 1-ethyl-3-methylimidazole ionic liquid chloride salt;

[0030] （2） The prepared 1-ethyl-3-methylimidazolium ionic liquid chloride salt and ferrous sulfate were mixed and dissolved in water according to the molar ratio of 1:2, and stirred for 2 hours at 50°C to obtain 1-ethyl -3-Methylimidazolyl chloride iron complex;

[0031] （3） Mix 1-ethyl-3-methylimidazolyl chloride iron complex with sodium hydroxide in a molar ratio of 1:2.5 and dissolve in water, stir at room temperature for 2 hours, and filter to obtain hydroxylated 1-ethyl- 3-Methylimidazolium Chloride Iron Complex.

Embodiment 2

[0033] （1） Mix ethyl chloride and ethylimidazole at a molar ratio of 1:1.05, and stir at 80°C for 48 hours to prepare 1,3-diethylimidazole ionic liquid chloride salt;

[0034] （2） The prepared 1,3-diethylimidazolium ionic liquid chloride salt and ferrous sulfate were mixed and dissolved in water at a molar ratio of 1:2, and stirred for 2 hours at 50°C to obtain 1,3-diethyl Imidazolyl chloride iron complexes;

[0035] （3） Mix 1,3-diethylimidazolyl chloride iron complex with sodium hydroxide in a molar ratio of 1:2.5 and dissolve in water, stir at room temperature for 2 hours, and filter to obtain hydroxylated 1,3-diethyl Imidazolium Chloride Iron Complex.

Embodiment 3

[0037] （1） Mix chloropropane and methylimidazole according to the molar ratio of 1:1.05, and stir at 80°C for 48 hours to prepare 1-propyl-3-methylimidazolium ionic liquid chloride salt;

[0038] （2） The prepared 1-propyl-3-methylimidazolium ionic liquid chloride salt and ferrous sulfate were mixed and dissolved in water according to the molar ratio of 1:2, and stirred for 2 hours at 50°C to obtain 1-propyl -3-Methylimidazolyl chloride iron complex;

[0039] （3） Mix 1-propyl-3-methylimidazolyl chloride iron complex with sodium hydroxide in a molar ratio of 1:2.5 and dissolve in water, stir at room temperature for 2 hours, and filter to obtain hydroxylated 1-propyl- 3-Methylimidazolium Chloride Iron Complex.

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Abstract

The invention discloses a reactive dye wastewater adsorbing agent and a preparation method thereof. The reactive dye wastewater adsorbing agent is an iron complex containing an ionic liquid group and a hydroxyl group, synthesized through ionic liquid solidification and hydroxylation. The reactive dye wastewater adsorbing agent can be used as an adsorbing agent for treating reactive dye wastewater, is simple in preparation process, mild in synthesis conditions, and easy to realize, has a relatively strong adsorption function for reactive dye, and can be used for decoloring the reactive dye wastewater. Meanwhile, the hydroxylated imidazolyl ionic liquid iron complex adsorbed with the dye can be recycled only by simple treatment.

Description

technical field [0001] The invention relates to a printing and dyeing wastewater treatment agent, in particular to a hydroxylated ionic liquid complex adsorbent used for reactive dye printing and dyeing wastewater treatment and a preparation method thereof. Background technique [0002] Printing and dyeing wastewater pollutes the environment. The wastewater contains a variety of dye components and has a deep color. It must be treated to meet the discharge requirements. [0003] At present, the treatment technologies for printing and dyeing wastewater of reactive dyes include coagulation method, adsorption method, chemical oxidation method, biological treatment method and electrochemical method. Domestic reactive dye printing and dyeing wastewater is mainly treated by flocculation and sedimentation combined with chemical methods. [0004] Patent CN100436346C discloses a method for treating reactive dye printing and dyeing wastewater by heterogeneous catalytic oxidation-coagu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F103/30
Inventor 程德红韩玲路艳华林杰
Owner EASTERN LIAONING UNIV