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Environment-friendly type protection agent for closed heating system and preparation method thereof

A heating system and protective agent technology, applied in chemical instruments and methods, special treatment targets, water/sludge/sewage treatment, etc., can solve the problems of heating system protection, large environmental pollution, etc., to prevent system failure, water-soluble Good, excellent anti-rust and anti-corrosion effect

Inactive Publication Date: 2018-11-16
安徽普庆环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide an environmentally friendly protective agent for closed heating systems and its preparation method, in order to solve the problem that traditional corrosion and scale inhibitors contain phosphorus and cause great environmental pollution, and at the same time cannot affect the copper, iron, aluminum in the system The problem of effective protection of complex heating systems such as plastic parts and

Method used

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  • Environment-friendly type protection agent for closed heating system and preparation method thereof
  • Environment-friendly type protection agent for closed heating system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Preparation of protective agent

[0027] (1) Preparation of sulfonyl amino acid-amine salt: add 5 parts of sulfonyl amino acid and 5 parts of triethanolamine to the reaction vessel, react at 50°C, and stir at 300 rpm for 30 minutes to promote dissolution to form a uniform sulfonyl amino acid- Amine salt solution;

[0028] (2) Preparation of protective agent: take a certain amount of deionized water, add 10 parts of acrylic acid-sulfonic acid copolymer and 5 parts of acrylic acid copolymer sodium salt chelating agent while stirring, the stirring speed is 200rpm, and then add the steps in sequence The sulfonyl amino acid-amine salt solution prepared in (1), 0.1 part of benzotriazole, and 3 parts of organic tertiary amine ester of boric acid, after stirring and mixing evenly, add 2 parts of sodium polyacrylate, disperse at high speed, and rotate at 1000 rpm. The time was 10 min, then 0.01 part of 1,2-benzisothiazolin-3-one was added, and the pH was adjusted to ...

Embodiment 2

[0029] Example 2: Preparation of protective agent

[0030] (1) Preparation of sulfonyl amino acid-amine salt: add 20 parts of sulfonyl amino acid and 30 parts of triethanolamine to the reaction vessel, react at 80°C, and stir at 500 rpm for 10 minutes to promote dissolution to form a uniform sulfonyl amino acid- Amine salt solution;

[0031] (2) Preparation of protective agent: take a certain amount of deionized water, add 25 parts of acrylic acid-sulfonic acid copolymer and 10 parts of acrylic acid copolymer sodium salt chelating agent while stirring, the stirring speed is 300rpm, and then add the steps in sequence (1) The prepared sulfonyl amino acid-amine salt solution, 5 parts of benzotriazole, and 8 parts of organic tertiary amine ester of boric acid, after stirring and mixing evenly, add 8 parts of maleic acid-acrylic acid sodium salt, disperse at high speed, The rotating speed is 1500rpm, the time is 5min, and then 0.1 part of dimethyl fumarate and a pH adjuster compos...

Embodiment 3

[0032] Example 3: Preparation of protective agent

[0033] (1) Preparation of sulfonyl amino acid-amine salt: add 12 parts of sulfonyl amino acid and 14 parts of triethanolamine to the reaction vessel, react at 65°C, and stir at 400 rpm for 20 minutes to promote dissolution to form a uniform sulfonyl amino acid- Amine salt solution;

[0034](2) Preparation of protective agent: Take a certain amount of deionized water, add 18 parts of acrylic acid-sulfonic acid copolymer and 8 parts of acrylic acid copolymer sodium salt chelating agent while stirring, the stirring speed is 250rpm, and then add the above steps in sequence (1) Prepared sulfonyl amino acid-amine salt solution, 2 parts of benzotriazole, 5 parts of organic boric acid tertiary amine ester, after stirring and mixing evenly, add 5 parts of lignosulfonate, high-speed dispersion, the speed is 1200rpm, the time is 7min, and then add 0.05 parts of 2-methyl-4-isothiazolin-3-one and a pH regulator consisting of 5% potassium...

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Abstract

The invention discloses an environment-friendly type protection agent for a closed heating system and a preparation method thereof. The protection agent is prepared from the following raw materials inparts by weight: 10 to 25 parts of acrylic acid-sulfonic acid copolymer, 5 to 10 parts of acrylate copolymer sodium salt, 2 to 8 parts of dispersant, 5 to 20 parts of sulfonyl amino acid, 5 to 30 parts of triethanolamine, 0.1 to 5 parts of benzotriazole, 3 to 8 parts of organic borate tertiary amine ester and 0.01 to 0.1 part of sterilization and bacterium-inhibition agent; the pH (Potential of Hydrogen) value of a prepared solution is regulated to 7.5 to 8.5 by utilizing a pH regulator. The product provided by the invention is neutral, safe and environmentally friendly and does not contain toxic and harmful components; the product has relatively good scale inhibition, rust prevention and microorganism growth prevention effects on the heating system with circulating water; the faults of the system are prevented and the service life is prolonged.

Description

technical field [0001] The invention relates to a protective agent and a preparation method thereof, in particular to an environment-friendly protective agent used in a closed heating system and a preparation method thereof. Background technique [0002] With the vigorous promotion of coal-to-electricity and coal-to-gas conversion in northern regions, the previous coal-fired boilers have been gradually replaced by air source heating systems and wall-hung boiler systems. For these closed heating systems with circulating water, a large amount of scale, rust and the growth of some microorganisms will be generated in the pipeline after long-term operation, which will seriously affect the service life of the system, directly lead to system failure, and reduce heat exchange efficiency. Increase energy consumption. Therefore, it is very necessary to carry out a continuous protection of the heating system with the circulating water system. The protection mainly plays the role of a...

Claims

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Application Information

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IPC IPC(8): C02F5/12
CPCC02F5/12C02F2303/08
Inventor 侯伟
Owner 安徽普庆环保科技有限公司