Hyper-branched polymer multifunctional sewage treating agent and synthetic method thereof

A technology of a hyperbranched polymer and a synthesis method, which is applied in the field of hyperbranched polymer multifunctional sewage treatment agent and synthesis, can solve the problems of small flocs, secondary pollution, entry of heavy metals, etc. The effect of burden and large molecular weight

Active Publication Date: 2015-12-16
济南雅歌新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For heavy metals in a complex state, it is difficult to meet the national discharge standards for wastewater treatment by neutralization and precipitation, resulting in a large amount of heavy metals entering the environmental water body; in recent years, more organic sulfur heavy metal collectors (dithiocarbamate (DTC) type heavy metal trapping agent, xanthic acid type heavy metal trapping agent, TMT type heavy metal trapping agent) treated wastewater has small flocs, large volume, and a lot of water, which is very easy to produce secondary pollution, causing human and The water environment in which other organisms live poses great harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] step 1):

[0034] Add 0.05mol 2,4,6-trimethyl-2,4,6-trivinylcyclotrisiloxane ethanol-toluene mixed solution, 0.2mol mercaptoethylamine to a three-necked flask with magnetic stirring, at room temperature Reaction, reaction time 1-4h.

[0035] Step (2):

[0036] Cool the reaction system in step (1) to 0-5°C, and then slowly add 0.4mol epichlorohydrin dropwise. During the reaction, use 5-10% alkali solution to adjust the pH to 8-11. Stir for 2-4 hours; after the reaction is completed, heat up to 80-100°C, add dropwise 0.35mol pentaethylenehexamine and 0.05mol triethylamine solution, and use 5-10% alkali solution to adjust the pH at 8- 11. The reaction time is 4-10 hours;

[0037] Step (3):

[0038] Dissolve the reaction product synthesized in step (2) in water, lower the temperature to 5-10°C, add 56g of 50% NaOH aqueous solution, and slowly add 0.7molCS 2 After the dropwise addition, the reaction system was returned to room temperature and continued to stir for 2-4 h...

Embodiment 2

[0041] step 1):

[0042] Add 0.05mol 2,4,6,8-tetramethyl-2,4,6,8-trivinylcyclotrisiloxane ethanol-toluene mixed solution, 0.2mol mercaptoethyl to a three-necked flask with magnetic stirring Amine, reaction at room temperature, reaction time 1-4h.

[0043] step (2)

[0044] Cool the reaction system in step (1) to 0-5°C, and then slowly add 0.4mol epichlorohydrin dropwise. During the reaction, use 5-10% alkali solution to adjust the pH to 8-11. Stir for 2-4 hours; after the reaction is completed, heat up to 80-100°C, add dropwise 0.35mol pentaethylenehexamine and 0.05mol triethylamine solution, and use 5-10% alkali solution to adjust the pH at 8- 11. The reaction time is 4-10 hours;

[0045] Step (3):

[0046] Dissolve the reaction product synthesized in step (2) in water, lower the temperature to 5-10°C, add 60g of 50% NaOH aqueous solution, and slowly add 0.75molCS 2 After the dropwise addition, the reaction system was returned to room temperature and continued to stir fo...

Embodiment 3

[0049] step 1):

[0050] Add 0.02mol low molecular weight polymethylvinylsiloxane (Mn=602) ethanol-toluene mixed solution and 0.15mol mercaptoethylamine to a three-necked flask with magnetic stirring, and react at room temperature for 1-4 hours.

[0051] step (2)

[0052]Cool the reaction system in step (1) to 0-5°C, and then slowly add 0.3mol epichlorohydrin dropwise. During the reaction, use 5-10% alkali solution to adjust the pH to 8-11. Stir for 2-4 hours; after the reaction is completed, heat up to 80-100°C, add dropwise 0.25mol pentaethylenehexamine and 0.05mol triethylamine solution, and use 5-10% alkali solution to adjust the pH at 8- 11. The reaction time is 4-10 hours;

[0053] Step (3):

[0054] Dissolve the reaction product synthesized in step (2) in water, lower the temperature to 5-10°C, add 40g of 50% NaOH aqueous solution, and slowly add 0.5molCS 2 After the dropwise addition, the reaction system was returned to room temperature and continued to stir for 2-...

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PUM

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Abstract

The invention especially relates to a hyper-branched polymer multifunctional sewage treating agent and a synthetic method thereof, belonging to the technical field of water treatment. The hyper-branched polymer molecular skeleton and molecular terminal of the hyper-branched polymer multifunctional sewage treating agent contain a great number of function groups capable of realizing integrated removal of heavy metal ions, suspensions, colloids, floating oil, etc.; and a hyper-branched polymer core is an organo-silicone structure which has low surface energy, can be easily positioned on the surface interfaces of solid suspension particles and colloidal solutions and is capable of reducing water content of produced floccules.

Description

technical field [0001] The invention belongs to the technical field of industrial water treatment, and in particular relates to a hyperbranched polymer multifunctional sewage treatment agent and a synthesis method. Background technique [0002] In recent years, with the rapid development of electroplating and printed circuit board manufacturing industries, a large amount of wastewater containing heavy metal ions such as copper, zinc, manganese, cadmium, and uranium has been discharged. New complexing agents, such as citrate, EDTA, organic phosphonic acid, triethanolamine, tartrate, pyrophosphate and other complexing agents, make the composition of water quality more and more complicated. For heavy metals in a complex state, it is difficult to meet the national discharge standards for wastewater treatment by neutralization and precipitation, resulting in a large amount of heavy metals entering the environmental water body; in recent years, more organic sulfur heavy metal coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56
Inventor 李连山张立鹏靖波柳沛丰
Owner 济南雅歌新材料科技有限公司
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