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Preparation method of water treatment purifying agent

A purifying agent and water treatment technology, applied in the field of environmental science, can solve the problems of poor thermal stability, increased cost, and large dosage of water treatment chemicals, and achieve low production cost, low use cost, excellent corrosion and scale inhibition performance. Effect

Active Publication Date: 2020-07-14
黑龙江三幸环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of the water treatment agent is large, which increases the cost, and the thermal stability is poor and easy to decompose

Method used

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  • Preparation method of water treatment purifying agent

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Effect test

Embodiment 1

[0013] The preparation method of water treatment purifying agent comprises the synthesis of polyether monomer, the synthesis of scale inhibitor, and the preparation of water treatment purifying agent. The specific steps are:

[0014] 1) Synthesis of polyether monomer: put maleic anhydride and allyl polyoxyethylene ether with a molar ratio of 1:11 into a reaction vessel, mechanically stir at room temperature for 55 minutes, and then uniformly heat to 65°C to stir the reaction After 3.5 hours, cool to room temperature to obtain the polyether monomer, which is ready for use. The terminal hydroxyl group of the allyl polyoxyethylene ether molecule is a chemically active group, and the stability and water solubility of the terminal hydroxyl group are worse than those of the carboxyl group. Therefore, allyl polyoxyethylene ether can be carboxy-terminated with maleic anhydride to synthesize polyether macromonomer allyl polyoxyethylene ether carboxylate. The polyether monomer is a new t...

Embodiment 2

[0018] The preparation method of water treatment purification agent, concrete steps are:

[0019] 1) Put maleic anhydride and allyl polyoxyethylene ether with a molar ratio of 1:9 into the reactor, stir at room temperature for 50 minutes, then heat to 70°C and stir for 3 hours to obtain the polyether monomer;

[0020]2) Put acrylic acid, polyether monomer, and 2-acrylamide-2-methylpropanesulfonic acid in a molar ratio of 3:0.2:0.7 into the reactor, and add chain transfer agent and monomer with a weight of 6% of the monomer 4% by weight of the initiator, then add distilled water, react at 80°C for 2 hours, and cool to room temperature to obtain a scale inhibitor with a solid content of 22%;

[0021] 3) In parts by weight, take 1.7 parts of carboxyethylthiosuccinic acid, 0.6 parts of sodium tartrate, 0.4 parts of zinc chloride, 0.7 parts of polyoxysuccinic acid, 0.5 parts of scale inhibitor, and 0.001 parts of sodium 4-aminobenzenesulfonate , and mix evenly to obtain a water tr...

Embodiment 3

[0023] The preparation method of water treatment purification agent, the specific steps are: put maleic anhydride and allyl polyoxyethylene ether with a molar ratio of 1:13 into a reactor, stir at room temperature for 60 minutes, and then heat to 60°C to stir and react 4h to obtain the polyether monomer; put acrylic acid, polyether monomer, and 2-acrylamide-2-methylpropanesulfonic acid in a molar ratio of 3:0.5:0.5 into the reactor, and add 10% of the monomer weight chain transfer agent and 2% initiator by monomer weight, then add distilled water, react at 60°C for 3h, and cool to room temperature to obtain a scale inhibitor with a solid content of 30%; take carboxyethylthiosuccinic acid 13g, sodium tartrate 8g, zinc sulfate 2g, polyoxysuccinic acid 7g, antiscalant 6g, sodium 4-aminobenzene sulfonate 0.02g, mix evenly to obtain water treatment purification agent, sodium tartrate in sodium tartrate and sodium tartrate The weight ratio of sodium tartrate is 1:0.08.

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Abstract

The invention discloses a preparation method of a water treatment purifying agent. The preparation method comprises the following main steps: synthesizing maleic anhydride and allyl polyoxyethylene ether into a polyether monomer; then synthesizing acrylic acid, the polyether monomer, and 2-acrylic amide-2-methylpropanesulfonic acid into a scale inhibitor; uniformly mixing the scale inhibitor witha carboxyethylthiosuccinic acid, sodium tartrate, zinc salt, polyoxysuccinate and 4-sodium sulfanilate to obtain the water treatment purifying agent. The preparation method of the water treatment purifying agent disclosed by the invention has the beneficial effects that the water treatment purifying agent does not contain phosphorus and eutrophication is difficultly generated; the components for performing water treatment have excellent corrosion inhibition and scale inhibition efficiency and can prevent scaling and deposition of a water circulating system; the water treatment purifying agentcan be also applied to water with high temperature, high hardness, medium low alkalinity, high concentration of SO4<2> and Ca<2+>; separation during synthetic reaction in the water treatment purifyingagent is not needed, an operation is simple and convenient, the production cost is low, a preparation process is environment-friendly, industrial production is easy, the consumption is less, and theusing cost is low.

Description

technical field [0001] The invention relates to the field of environmental science and technology, in particular to a preparation method of a water treatment purifying agent. Background technique [0002] In the context of global population growth and rapid industrialization, people's demand for natural water resources is increasing. As for the supply of natural water resources, due to factors such as increasingly serious pollution, climate change, and sinking of groundwater, the shortage of water resources available to human beings has intensified. Therefore, my country's water resource conditions do not allow industrial water to grow too fast, and industrial water must be based on water conservation and water use efficiency. Therefore, strengthening industrial water conservation and recycling is an important way to alleviate the shortage of water resources. In industrial water, circulating cooling water is generally used to increase the reuse rate of water, and increasin...

Claims

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Application Information

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IPC IPC(8): C02F5/12
Inventor 潘玉英杨金生
Owner 黑龙江三幸环保科技有限公司
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