Oxidization-resistant copper corrosion inhibitor used in circulating cooling water system

A technology of circulating cooling water and copper corrosion inhibitor, which is applied in the field of corrosion inhibitors, can solve the problems of high price and no synergy of chlorine-containing bactericides, and achieve the effect of improving the bactericidal ability

Inactive Publication Date: 2011-02-16
赵清顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is no oxidation-resistant copper corrosion inhibitor application
However, HRA products are more expensive and have no synergistic effect on chlorine-containing fungicides

Method used

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  • Oxidization-resistant copper corrosion inhibitor used in circulating cooling water system
  • Oxidization-resistant copper corrosion inhibitor used in circulating cooling water system
  • Oxidization-resistant copper corrosion inhibitor used in circulating cooling water system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 (unit: gram)

[0027] Weigh 200g of BTA, 20g of sodium bromide, 250g of isopropanol, and 320g of pure water, dissolve BTA with isopropanol, dissolve sodium bromide with pure water, and then mix the two evenly to obtain the embodiment of the present invention 1 oxidation-resistant copper corrosion inhibitor. Embodiment 2 (unit: gram)

Embodiment 2

[0028] Weigh 150g of TTA, 10g of Potassium Bromide, 200g of DMF, and 200g of pure water, dissolve TTA with DMF, and dissolve Potassium Bromide with pure water, and then mix the two evenly to obtain the second oxidation-resistant type of the present invention. Copper corrosion inhibitor.

Embodiment 3

[0029] Embodiment 3 (unit: gram)

[0030] Take by weighing MBT 350g, lithium bromide 50g, 10% by weight sodium hydroxide solution 450g, pure water 500g, MBT is dissolved with sodium hydroxide solution, lithium bromide is dissolved with pure water, then the two are mixed uniformly again, obtain the embodiment of the present invention Example 3 oxidation-resistant copper corrosion inhibitor.

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PUM

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Abstract

The invention relates to a corrosion inhibitor, in particular to an oxidization-resistant copper corrosion inhibitor used in a circulating cooling water system. The oxidization-resistant copper corrosion inhibitor is prepared by a copper corrosion inhibitor, an additive, a solvent and water; and experiments prove that the oxidization-resistant copper corrosion inhibitor can not only protect the corrosion of a copper material in the circulating cooling water system, but also reduce the decomposition of organic phosphates and polymer scale inhibitors by residual chlorine. The combination of the additive and the residual chlorine in the oxidization-resistant copper corrosion inhibitor can also improve the sterilization capacity of a circulating water system so as to reduce the treatment cost of a circulating water treatment system and improve a treatment effect.

Description

technical field [0001] The invention relates to a corrosion inhibitor, in particular to an oxidation-resistant copper corrosion inhibitor used in a circulating cooling water system and a preparation method thereof. Background technique [0002] In the circulating cooling water system of petrochemical production, electric power, metallurgy and other industries, chlorine-containing bactericides are often used to solve the microbial problems of the system. In systems containing copper materials, copper corrosion inhibitors are added at the same time to delay the corrosion of such metals; however, chlorine-containing bactericides will decompose copper corrosion inhibitors, resulting in insufficient dosage of copper corrosion inhibitors in the system, which will cause the corrosion of the protected material copper excessive corrosion. [0003] In this case, an oxidation-resistant copper corrosion inhibitor is needed, which can reduce the concentration of the corrosion inhibitor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/14C23F11/16
Inventor 邢立华王广健张蕾
Owner 赵清顺
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