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Composite corrosion inhibitor for boiler water

A composite corrosion inhibitor and boiler water technology, applied in the field of water treatment, can solve problems affecting the normal operation of production equipment, leakage of boilers and pipelines, increased corrosion, etc., to achieve odorless dispersion performance, corrosion prevention, and good corrosion inhibition The effect of action

Inactive Publication Date: 2015-01-14
山东华亚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Boiler water plays a pivotal role in the boiler system, but the boiler water used has certain corrosion characteristics. When the water temperature is higher than the ambient temperature in various occasions, corrosion will bring serious consequences
When it is used as a medium in an industrial boiler system, it will cause problems such as deterioration of water quality and increased corrosion, resulting in leakage of boilers and pipelines, seriously affecting the normal operation of production equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A composite corrosion inhibitor for boiler water, consisting of the following components by weight:

[0039] 15 parts of sodium polyacrylate

[0040] Benzotriazole 7 parts

[0041] Sulfonated polystyrene 5 parts

[0042] Citric acid 4 parts

[0043] 2 parts of 1-hydroxyethylene-1,1-diphosphonic acid.

[0044] Using the composite corrosion inhibitor described in Example 1, the corrosion inhibition effect reached 97.8%, and the corrosion rate was reduced to 0.0019 mm / a.

Embodiment 2

[0046] The composite corrosion inhibitor for boiler water consists of the following components by weight:

[0047] Sodium polyacrylate 15.8 parts

[0048] Benzotriazole 7.7 parts

[0049] Sulfonated polystyrene 5.83 parts

[0050] Citric acid 4.9 parts

[0051] 2.72 parts of 1-hydroxyethylene-1,1-diphosphonic acid.

[0052] The use of the composite corrosion inhibitor described in Example 2 achieves a corrosion inhibition effect of 98.1% and reduces its corrosion rate to 0.0021 mm / a.

Embodiment 3

[0054] The composite corrosion inhibitor for boiler water consists of the following components by weight:

[0055] Sodium polyacrylate 17.43 parts

[0056] 8.1 parts of benzotriazole

[0057] Sulfonated polystyrene 6.35 parts

[0058] Citric acid 5.27 parts

[0059] 3.13 parts of 1-hydroxyethylene-1,1-diphosphonic acid.

[0060] Using the composite corrosion inhibitor described in Example 3, the corrosion inhibition effect reaches 98.5%, and the corrosion rate is reduced to 0.00227 mm / a.

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Abstract

The invention belongs to the technical field of water treatment, and particularly relates to a composite corrosion inhibitor for boiler water. The composite corrosion inhibitor for boiler water is composed of the following components in parts by weight: sodium polyacrylate, benzotriazole, sulfonated polystyrene, a citric acid, and a 1-hydroxy ethylidene-1,1-diphosphonic acid. The composite corrosion inhibitor is convenient to use, small in toxicity, tasteless, and good in dispersity.

Description

Technical field [0001] The invention belongs to the technical field of water treatment, and particularly relates to a composite corrosion inhibitor for boiler water. Background technique [0002] Boiler water plays an important role in the boiler system, but the boiler water used has certain corrosive characteristics. When the water temperature is higher than the ambient temperature, corrosion will bring serious consequences. When it is used as a medium in an industrial boiler system, it will cause problems such as deterioration of water quality and increased corrosivity, resulting in boiler and pipeline leakage, and seriously affecting the normal operation of production equipment. With the rapid development of social economy and technological progress, water treatment technology has received increasing attention. The use of water treatment chemicals can effectively prevent corrosion, thereby improving the utilization of equipment and water and achieving the purpose of saving wat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12C02F5/14
CPCC02F5/10C02F5/12C02F5/14C02F2303/08
Inventor 牟军平朱娜刘晓于春光
Owner 山东华亚环保科技有限公司
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