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Application of furan-containing triazole compound used as effective corrosion inhibitor

A compound, triazole technology, applied in the application field of high-efficiency corrosion inhibitors, can solve the problems of scarcity of corrosion inhibitors, copper corrosion damage, loss of performance, etc., and achieve excellent corrosion inhibition performance, low cost, and the effect of inhibiting damage

Inactive Publication Date: 2013-08-07
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although copper ranks after hydrogen in the metal activity sequence table, and its activity is poor, copper is also very susceptible to corrosion damage to varying degrees in systems containing chloride ions, sulfates, nitrates and other corrosive media, thus losing Its original various performances may even bring huge disasters
[0004] At present, although there have been many reports on seawater corrosion inhibitors for metallic copper, the number of corrosion inhibitors that can be applied in actual production is extremely rare.

Method used

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  • Application of furan-containing triazole compound used as effective corrosion inhibitor
  • Application of furan-containing triazole compound used as effective corrosion inhibitor
  • Application of furan-containing triazole compound used as effective corrosion inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The experimental material is red copper (99.999%), the compound of formula one is formulated as a corrosion inhibitor, the medium is 3.5% sodium chloride solution, and the red copper product is immersed in the medium added with the corrosion inhibitor, the temperature is 25 ° C, pH = 7.5 where The amount of the medium used is 100L, the amount of the compound of formula 1 in the medium is 0.5g, the temperature is 25°C, pH=6.5, and the immersion time is 14 days.

[0026] Corrosion inhibitor is: the compound of formula one is dissolved in cyclohexane, and it and cyclohexane (C 4 h 12 ) in a weight ratio of 1:10, then ultrasonically disperse the mixed solution for 20 minutes at room temperature with an ultrasonic disperser to make it completely dissolved; then, add the fully dissolved solution to the OP-10 emulsifier (C 34 h 62 o 11 ) (Tianjin Damao Chemical Instrument Supply Station), the amount of OP-10 emulsifier added is the same as that of cyclohexane (C 4 h 12 ) ...

Embodiment 2

[0029] The experimental material is red copper (99.999%), the compound of formula one is formulated as a corrosion inhibitor, the medium is 3.5% sodium chloride solution, and the red copper product is immersed in the medium added with the corrosion inhibitor, the temperature is 25 ° C, pH = 7.5 where The amount of medium used is 100L, the amount of the compound of formula 1 in the medium is 1.0g, the temperature is 25°C, pH=6.5, and the immersion time is 14 days.

[0030] Corrosion inhibitor is: the compound of formula one is dissolved in cyclohexane, and it and cyclohexane (C 4 h 12 ) in a weight ratio of 1:10, then ultrasonically disperse the mixed solution for 20 minutes at room temperature with an ultrasonic disperser to make it completely dissolved; then, add the fully dissolved solution to the OP-10 emulsifier (C 34 h 62 o 11 ) (Tianjin Damao Chemical Instrument Supply Station), the amount of OP-10 emulsifier added is the same as that of cyclohexane (C 4 h 12 ) in a...

Embodiment 3

[0033] The experimental material is red copper (99.999%), the compound of formula one is formulated as a corrosion inhibitor, the medium is 3.5% sodium chloride solution, and the red copper product is immersed in the medium added with the corrosion inhibitor, the temperature is 25 ° C, pH = 7.5 where The amount of the medium used is 100 L, the amount of the compound of formula 1 in the medium is 2.0 g, the temperature is 25° C., pH=6.5, and the immersion time is 14 days.

[0034] Corrosion inhibitor is: the compound of formula one is dissolved in cyclohexane, and it and cyclohexane (C 4 h 12 ) in a weight ratio of 1:10, then ultrasonically disperse the mixed solution for 20 minutes at room temperature with an ultrasonic disperser to make it completely dissolved; then, add the fully dissolved solution to the OP-10 emulsifier (C 34 h 62 o11 ) (Tianjin Damao Chemical Instrument Supply Station), the amount of OP-10 emulsifier added is the same as that of cyclohexane (C 4 h 12 ...

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Abstract

The invention relates to a corrosion inhibitor of copper in seawater or a sodium chloride solution, i.e., a low-toxicity high-efficiency corrosion inhibitor for inhibiting corrosion of metal copper and a product thereof in the sweater or a sodium chloride medium as well as an application of the corrosion inhibitor. The effective component of the corrosion inhibitor is 2-{5-[3-(4'-methyl) phenyl-4-amino (1,2,4) s-triazole]} sulfo-N-(2'-furan) methenyl acethydrazide. The corrosion inhibitor can be used for effectively preventing general corrosion or local corrosion of metal copper in a contact process with seawater or the sodium chloride solution. At present, the compound has been synthesized in a laboratory and extensively applied to antibiosis experiments, yet has not been used as a metal corrosion inhibitor. The corrosion inhibitor provided in the invention is less in dosage, small in toxicity, high in efficiency, long in continuous action time, capable of effectively inhibiting the corrosion damages of metal copper and extensive in application prospect.

Description

technical field [0001] The invention relates to a copper seawater corrosion inhibitor, in particular to the application of a furan-containing triazole compound as a high-efficiency corrosion inhibitor. Background technique [0002] With the continuous consumption of various resources on land, the development and utilization of marine resources has become an inevitable way to solve the current problem of resource depletion. However, seawater is a strong electrolyte solution, which is highly corrosive to metals, which greatly limits the development and utilization of marine resources. Therefore, only by solving the corrosion problem of metal materials in seawater can the development and utilization value of marine resources be truly reflected. [0003] Copper has excellent mechanical strength, machinability, electrical conductivity, weldability and other characteristics, and has been widely used in industry, military and civilian fields for a long time. However, although cop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/16
Inventor 李伟华田惠文侯保荣
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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