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Environmental-friendly type red copper compound corrosion inhibitor

A composite corrosion inhibitor, an environment-friendly technology, applied in the field of environment-friendly red copper composite corrosion inhibitor, can solve the problems of increasing water treatment costs, poor water solubility, etc., and achieve good effect and high corrosion inhibition rate

Inactive Publication Date: 2014-07-23
秦富强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the copper corrosion inhibitors currently used are more or less toxic, such as commonly used BTA, imidazole, thiazole, carbazole, aniline, thiourea and triphenylmethane derivatives, etc., due to the toxicity of these corrosion inhibitors. The application process has brought a lot of inconvenience; at the same time, the copper corrosion inhibitors currently used are poor in water solubility, and it is difficult to compound with other scale and corrosion inhibitors, which further increases the cost of water treatment

Method used

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  • Environmental-friendly type red copper compound corrosion inhibitor
  • Environmental-friendly type red copper compound corrosion inhibitor
  • Environmental-friendly type red copper compound corrosion inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Polyaspartic acid, phytic acid, sodium silicate, guar hydroxypropyltrimonium chloride, phenanthrozine monosodium salt, polyoxyethylene sorbitan monostearate, polyvinyl acetate and The mass ratio of 2-hydroxysuccinic acid is 6:1.4:2.4:2.7:1.2:0.6:2:3, and the solvent is a mixture of deionized water and ethanol, wherein the mass ratio of deionized water:ethanol is 8:2.

[0016] Among them: polyaspartic acid (analytical pure), molecular weight 4000, Sinopharm Chemical Reagent Co., Ltd.; phytic acid PA (analytical pure), molecular weight 660.08, colorless or light yellow liquid; sodium silicate (analytical pure) ;Guar gum hydroxypropyltrimethylammonium chloride, industrial product; phenanthrolazine monosodium salt, content 99%, Shanghai Tianyuan Biotechnology Co., Ltd.; polyoxyethylene sorbitan monostearate, Wuhan Wanrong Technology Development Co., Ltd.; polyvinyl acetate, Jiangsu Qiangsheng Functional Chemical Co., Ltd.; 2-hydroxysuccinic acid (analytical purity), 99%, Sh...

Embodiment 2

[0023] The ratio of each component in the composite corrosion inhibitor is adjusted to polyaspartic acid: phytic acid: sodium silicate: guar gum hydroxypropyl trimethyl ammonium chloride: phenanthrozine monosodium salt: polyoxyethylene sorbic acid Alcohol anhydride monostearate: polyvinyl acetate: 2-hydroxysuccinic acid is 4:1:3:3.7:0.8:1:2.5:4, other conditions are identical with embodiment 1, the corrosion inhibition test result of measurement as follows:

[0024]

Embodiment 3

[0026] Other conditions are the same as in Example 1, only the ratio of each component in the composite corrosion inhibitor is adjusted to polyaspartic acid: phytic acid: sodium silicate: guar gum hydroxypropyl trimethyl ammonium chloride: phenanthrozine Monosodium salt: polyoxyethylene sorbitan monostearate: polyvinyl acetate: 2-hydroxysuccinic acid is 4:0.6:4:3.7:1:1.6:3:5, the measured corrosion inhibition test results as follows:

[0027]

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Abstract

The invention discloses an environmental-friendly type red copper compound corrosion inhibitor, which belongs to the technical field of metal material corrosion and protection. The solute of the corrosion inhibitor comprises the following components: polyaspartic acid, phytic acid, sodium silicate, guar gum hydroxypropyl trimethyl ammonium chloride, ferrozine mono-sodium salt, polyoxyethylene sorbitol anhydride monostearate, polyvinyl acetate and 2-hydroxysuccinic acid in a mass ratio of (4-8):(0.6-1.4):(2.4-4):(2.7-3.7):(0.8-1.2):(0.6-1.6):(2-3):(3-5). The solvent of the corrosion inhibitor is a mixture of deionized water and ethanol, and the mass ratio of the deionized water to the ethanol is 8:2. The environmental-friendly type red copper compound corrosion inhibitor is prepared in a compounded manner, the components are all non-toxic or free of environment pollution, the use effect is good after the components are compounded, and the corrosion inhibition rate is high.

Description

[0001] technical field [0002] The invention relates to the technical field of metal material corrosion and protection, in particular to an environment-friendly red copper composite corrosion inhibitor. [0003] Background technique [0004] In industrial production, during the processing and storage of copper and its alloy products, the surface often interacts with corrosive components in the atmosphere to cause discoloration or corrosion. The destructive factors caused by this corrosion have brought huge economic losses and social harm to human beings and the social environment, making a large number of copper material equipment scrapped due to damage. Therefore, it is of great significance to seek protective measures for copper with good anti-corrosion performance, high corrosion inhibition efficiency, and natural pollution-free copper. Among various protective measures, corrosion inhibitor is a method with convenient application and high corrosion inhibition efficienc...

Claims

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Application Information

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IPC IPC(8): C23F11/08
Inventor 胡海波孔建胡爱华董淑凤苏慧祎
Owner 秦富强
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