High-performance biomass-based dye capture agent and its preparation method and application

A dye capture agent and biomass technology, applied in chemical instruments and methods, water pollutants, other chemical processes, etc., can solve the problems of slow sedimentation speed and inability to quickly treat dye wastewater, achieve rapid sedimentation, and solve the problem of heavy metal ions , the effect of not easy to secondary pollution

Active Publication Date: 2020-06-02
东营睿港投资服务有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of chitosan degradable coagulant to treat dye wastewater is that the sedimentation speed is slow, and it cannot quickly treat dye wastewater

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] It is a high-performance biomass-based dye capture agent, and its preparation steps are as follows:

[0021] Step 1 Synthesis of KGM-g-P (MAA-r-DEAEMA-r-NVF)

[0022] Take 1 part of konjac glucomannan (KGM), add 50 parts of water, control the temperature at 45°C, and dissolve for 0.5 hours; under the protection of nitrogen, add 0.2 parts of the initiator azobisisobutylamidine hydrochloride V-50, 5 parts of methacrylic acid (MAA), 5 parts of diethylaminoethyl methacrylate (DEAEMA) and 1 part of N-vinyl formamide (NVF), graft copolymerization for 3 hours, stop cooling reaction. After adding 50 parts of ethanol for precipitation separation, filtration and drying, high-purity konjac glucomannan-graft-poly(methacrylic acid-random-diethylaminoethyl methacrylate-random-N- Vinyl formamide) copolymer (KGM-g-P(MAA-r-DEAEMA-r-NVF)), where g stands for grafting and r stands for random copolymerization. Adopt elemental analysis and nuclear magnetic resonance instrument to analyze...

Embodiment 2

[0028]It is a high-performance biomass-based dye capture agent, and its preparation steps are as follows:

[0029] Step 1 Synthesis of KGM-g-P (MAA-r-DEAEMA-r-NVF)

[0030] Take 2 parts of konjac glucomannan (KGM), add 100 parts of water, control the temperature at 50°C, and dissolve for 0.7 hours; under the protection of nitrogen, add 0.3 parts of initiator azobisisobutylamidine hydrochloride V-50, 13 parts of methacrylic acid (MAA), 13 parts of diethylaminoethyl methacrylate (DEAEMA) and 2 parts of N-vinyl formamide (NVF), graft copolymerization for 7 hours, cooling to stop Reaction; add 100 parts of ethanol for precipitation separation, filtration and drying to obtain high-purity konjac glucomannan-graft-poly(methacrylic acid-random-diethylaminoethyl methacrylate-random- N-vinyl formamide) copolymer (KGM-g-P(MAA-r-DEAEMA-r-NVF)), where g represents grafting and r represents random copolymerization. Adopt elemental analysis and nuclear magnetic resonance instrument to anal...

Embodiment 3

[0036] It is a high-performance biomass-based dye capture agent, and its preparation steps are as follows:

[0037] Step 1 Synthesis of KGM-g-P (MAA-r-DEAEMA-r-NVF)

[0038] Take 3 parts of konjac glucomannan (KGM), add 150 parts of water, control the temperature at 50°C, and dissolve for 0.8 hours; under the protection of nitrogen, add 0.6 parts of initiator azobisisobutylamidine hydrochloride V- 50, 23 parts of methacrylic acid (MAA), 23 parts of diethylaminoethyl methacrylate (DEAEMA) and 3 parts of N-vinyl formamide (NVF), graft copolymerization for 15 hours, cooling down to stop the reaction. After adding 150 parts of ethanol for precipitation separation, filtration and drying, high-purity konjac glucomannan-graft-poly(methacrylic acid-random-diethylaminoethyl methacrylate-random-N-ethylene base formamide) copolymer (KGM-g-P(MAA-r-DEAEMA-r-NVF)), where g stands for grafting and r stands for random copolymerization. Adopt elemental analysis and nuclear magnetic resonance...

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Abstract

The invention relates to a high-performance trapping agent for biomass-based dye and a preparation method and application thereof. The high-performance trapping agent for the biomass-based dye is characterized by being prepared from konjac glucomannan, methacrylic acid, diethylamino ethyl methacrylate, N-vinylformamide, water, water-soluble initiator of azo diisobutyl amidine hydrochloride V-50, potassium hydroxide and carbon disulfide. The high-performance trapping agent for the biomass-based dye is used for treating dye wastewater which is discharged during the synthesis or dyeing and finishing of dye and artistic coating wastewater and trapping dye molecules, heavy metal ions and sedimented particles which grow into large particles quickly within a few seconds, so that the purpose of rapid separation of the dye and heavy metal ions is achieved; the high-performance trapping agent for the biomass-based dye has the advantages of little residues in water, no secondary pollution, easy operation, low treatment cost and strong adaptability.

Description

technical field [0001] The invention belongs to the field of biomass materials and dye wastewater treatment, and specifically relates to a high-performance biomass-based dye capture agent and its preparation method and application. It is mainly used in dye wastewater or art paint discharged during dye synthesis or dyeing and finishing processes application in wastewater. Background technique [0002] Traditional wastewater treatment methods include physical and chemical methods, chemical coagulation methods, physical adsorption methods, biochemical methods, and electrochemical methods. The chemical coagulation method is to add a coagulant to the dye wastewater to make the pollutants form colloidal particles, and remove the pollutants in the wastewater through coagulation precipitation or air flotation. The coagulation-sedimentation method is the most widely used in practice. Coagulation can simultaneously remove dye pollutants and other macromolecular suspended pollutants....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/56C02F1/52C02F101/20C02F103/30C02F101/30
CPCC02F1/5236C02F1/56C02F2101/20C02F2101/308C02F2103/30
Inventor 陈燕舞刘锋彭琦洪丹张浥琨郭志杰唐秋实霍应鹏
Owner 东营睿港投资服务有限责任公司
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