Magnetic ion liquid micro-emulsion extraction agent for treating printing and dyeing wastewater

A magnetic ionic liquid, printing and dyeing wastewater technology, applied in textile industry wastewater treatment, extraction water/sewage treatment, special compound water treatment, etc., to achieve the effect of improving extraction efficiency, broad application prospects, and rapid phase separation

Inactive Publication Date: 2017-01-11
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the current treatment methods in terms of high efficiency and simplicity, it is still the direction of continuous efforts of researchers to seek more efficient and simple printing and dyeing wastewater treatment methods, and to effectively enrich and recover waste dyes.

Method used

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  • Magnetic ion liquid micro-emulsion extraction agent for treating printing and dyeing wastewater

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Components of a magnetic ionic liquid microemulsion type extractant for treating printing and dyeing wastewater and their weight percentages: calculated in weight percentages, the composition includes magnetic ionic liquid benzyl trioctylimidazolium bromide iron trichloride ( [N 888Bn ][FeCl 3 Br]) 26%, crystal violet aqueous solution 3%, the concentration of crystal violet is 2 mg / L, surfactant polyoxyethylene lauryl ether (Brij 30) 40%, co-surfactant ethanol 31%.

[0024] at 20 o Under C temperature conditions, with the stirring speed of 1200 rev / mins, surfactant and co-surfactant were stirred for 20 minutes to obtain a clear and transparent mixture; at 20 o Under the temperature condition of C, add the aqueous dye solution, stir for 5 minutes with a stirring speed of 1200 rpm, and prepare a clear and transparent aqueous solution mixture containing the dye; finally, at 20 o Under the temperature condition of C, the magnetic ionic liquid was added dropwise to the mi...

Embodiment 2

[0027] A magnetic ionic liquid microemulsion type extractant for treating printing and dyeing wastewater and its weight percentage: calculated in weight percentage, its composition includes magnetic ionic liquid trihexyltetradecyl phosphorus tetrachloride ferric salt ([P 66614 ][FeCl 4 ]) 14%, malachite green aqueous solution 15%, the concentration of malachite green is 10 mg / L, surfactant octylphenyl polyoxyethylene ether (TX-100) 40%, co-surfactant isopropanol 31% .

[0028] at 100 o Under the temperature condition of C, with the stirring speed of 300 rev / min, surfactant and co-surfactant were stirred for 10 minutes to obtain a clear and transparent mixture; at 100 o Under the temperature condition of C, add the aqueous dye solution, stir for 10 minutes at a stirring speed of 300 rpm, and prepare a clear and transparent aqueous dye-containing mixture; finally, at 100 oUnder the temperature condition of C, the magnetic ionic liquid was added dropwise to the mixture contain...

Embodiment 3

[0031] A magnetic ionic liquid microemulsion type extractant for treating printing and dyeing wastewater and its weight percentage: calculated by weight percentage, its composition includes magnetic ionic liquid methoxybenzyl trioctyl imidazolium bromide trichloride Iron salt ([N 888MBn ][FeCl 3 Br]) 19%, rhodamine B aqueous solution 15%, wherein the concentration of rhodamine B is 24 mg / L, surfactant bis(2-ethylhexyl) succinate sodium sulfonate (AOT) 35%, surface aid Active agent n-butanol 31%.

[0032] at 60 o Under C temperature conditions, with the stirring speed of 750 revs / min, surfactant and co-surfactant were stirred for 5 minutes to obtain a clear and transparent mixture; at 60 o Under the temperature condition of C, add the aqueous dye solution, stir for 5 minutes with a stirring speed of 750 rev / min, and prepare a clear and transparent mixture containing the aqueous dye solution; finally at 60 o Under the temperature condition of C, the magnetic ionic liquid was...

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Abstract

The invention discloses a magnetic ion liquid micro-emulsion extraction agent for treating printing and dyeing wastewater. The extraction agent takes a magnetic ion liquid as a polar phase and a dyeing aqueous solution as a nonpolar phase; a micro-emulsion technique is adopted for preparing the magnetic ion liquid micro-emulsion; the defects of easiness in agglomeration and high ionic liquid viscosity of the magnetic material in a process of treating printing and dyeing wastewater can be effectively overcome; the preparation method is simple; the operation is convenient; the control is easy; the production cost is low. The magnetic ion liquid micro-emulsion extraction agent prepared according to the invention can be used for quickly and efficiently treating the dyes in the printing and dyeing wastewater and obviously increasing the extraction efficiency and reuse efficiency of the extraction agent; the magnetism of the extraction agent is utilized and a magnet is adopted for quickly separating the ion liquid from the dyes after the completion of the extraction, the recycle of the ion liquid and the enriching recycle of the dye molecules are realized and the application prospect is wide.

Description

technical field [0001] The patent of the invention relates to the preparation and application of a magnetic ionic liquid microemulsion type extractant for treating printing and dyeing wastewater and its recovery method for dyes, belonging to the technical field of chemical products. Background technique [0002] As one of the largest chemical industries in the world, the printing and dyeing industry not only brings social and economic benefits, but also brings huge pollution to crop irrigation and human drinking water. Therefore, how to efficiently remove dyes from printing and dyeing wastewater has always been a challenge for the textile industry. important topic. Due to the high stability and refractory biodegradability of dyes, it is difficult for traditional biological treatment plants to achieve high removal efficiency. [0003] With the deepening of research, many new methods of dye processing have been reported. Studies have shown that the microemulsion system const...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/26C02F101/30C02F103/30
CPCC02F1/26C02F2101/308C02F2103/30C02F2305/04
Inventor 王爱丽李宗芹刘杰
Owner LUDONG UNIVERSITY
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