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A kind of multi-binding site heavy metal sewage treatment agent and preparation method thereof

A technology of sewage treatment agent and binding site, which is applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of few binding sites and low removal efficiency of heavy metal scavenger, Achieve the effects of less dosage, high removal efficiency and reasonable group distribution

Active Publication Date: 2020-03-13
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

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multi-binding site heavy metal sewage treatment agent and its preparation method, which solves the problems of few binding sites and low removal efficiency of the heavy metal scavenger in the background technology

Method used

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  • A kind of multi-binding site heavy metal sewage treatment agent and preparation method thereof

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Effect test

Embodiment 1

[0019] This embodiment provides a method for preparing a multi-binding site heavy metal sewage treatment agent, which is carried out according to the following steps:

[0020] S101: Add 0.1mol tert-butylphenol and 0.21mol tetraethylenepentamine into a three-neck flask equipped with a magnet and a constant pressure dropping funnel, and heat it to 100°C with a magnetic stirring oil bath to make tert-butyl Phenol is completely soluble in tetraethylenepentamine. Lower the temperature to 40°C while stirring, pour 0.21mol of formaldehyde into the constant pressure dropping funnel and slowly drop it into the three-necked bottle. Xylene, heated up to 100°C, dehydration reaction at high temperature for 4 hours, after distilling off the xylene, a reddish-brown viscous liquid was obtained, which was the core of tert-butylphenolamine resin, and its yield was greater than 95%. as attached figure 1 shown;

[0021] S102: Dissolve 0.1 mol of the tert-butylphenol phenolamine resin core prod...

Embodiment 2

[0023] This embodiment provides a method for preparing a multi-binding site heavy metal sewage treatment agent, which is carried out according to the following steps:

[0024] S101: Add 0.1mol of tert-butylphenol and 0.2mol of pentaethylenehexamine to a three-neck flask equipped with a magnet and a constant pressure dropping funnel, and heat it to 100°C with a magnetic stirring oil bath to make tert-butyl Phenol is completely soluble in tetraethylenepentamine. Lower the temperature to 50°C while stirring, pour 0.2mol of formaldehyde into the constant pressure dropping funnel and slowly drop it into the three-necked bottle. Xylene, heated up to 100°C, dehydration reaction at high temperature for 4 hours, after distilling off the xylene, a reddish-brown viscous liquid was obtained, which was the core of tert-butylphenolamine resin, and the yield was greater than 93%.

[0025] S102: Dissolve 0.1 mol of the reaction product synthesized in step S101 in water, lower the temperature...

Embodiment 3

[0027] This embodiment provides a method for preparing a multi-binding site heavy metal sewage treatment agent, which is carried out according to the following steps:

[0028] S101: Add 0.1mol tert-butylphenol and 0.22mol ethylenediamine to a three-necked flask equipped with a magnet and a constant pressure dropping funnel, and heat it to 100°C with a magnetic stirring oil bath to make tert-butylphenol Completely soluble in tetraethylenepentamine. Lower the temperature to 30°C while stirring, pour 0.22mol of formaldehyde into the constant pressure dropping funnel and slowly drop it into the three-necked bottle. Xylene, heated up to 100°C, dehydration reaction at high temperature for 4 hours, after distilling off the xylene, a reddish-brown viscous liquid was obtained, which was the core of tert-butylphenolamine resin, and the yield was greater than 96%.

[0029] S102: Dissolve 0.1 mol of the reaction product synthesized in step S101 in water, lower the temperature to 5-10°C, ...

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Abstract

The invention provides a multi-binding-site treating agent for heavy-metal sewage and a preparation method thereof. The preparation method comprises two steps of synthesis of a multi-site inner core and reaction between the multi-site inner core and carbon disulfide for generating the treating agent for the sewage. The distribution of groups of a reactive main body selected in the method provided by the invention is reasonable; on the premise of the same molecular weight, the multi-binding-site treating agent has multiple active groups which participate in the reaction to form binding sites; the binding sites of the synthesized treating agent for the heavy-metal sewage is multiple; the dosage is low; the removal efficiency is high.

Description

technical field [0001] The invention relates to the technical field of industrial water treatment, in particular to a heavy metal sewage treatment agent, in particular to a multi-binding site heavy metal sewage treatment agent and a preparation method thereof. Background technique [0002] Heavy metal sewage refers to the sewage containing heavy metals discharged from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal (such as cadmium, nickel, mercury, zinc, etc.) sewage is one of the most serious environmental pollution and one of the most harmful industrial sewage. Heavy metals in sewage generally cannot be decomposed and destroyed, but can only transfer their existing positions and change their physical and chemical forms. [0003] At present, the commonly used heavy metal sewage treatment methods mainly include chemical methods, physical methods, biological methods, etc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/62
CPCC02F1/62
Inventor 李连山柳沛丰张立鹏周晓寒
Owner 济南雅歌新材料科技有限公司