Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of copper corrosion inhibitor

A copper corrosion inhibitor and solution technology, which is applied in the field of copper corrosion inhibitor preparation, achieves the effect of short production time, good effect and satisfying large-scale production

Active Publication Date: 2016-05-11
NANTONG BOTAO CHEM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the method of preparing copper corrosion inhibitor by mixing benzotriazole (BTA) and tolylbenzotriazole (TTA)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of preparation method of copper corrosion inhibitor:

[0021] It is prepared with benzotriazole and tolylbenzotriazole as the main raw materials. The specific preparation steps are: firstly, the mixture of cerium chloride and lanthanum chloride with a mass ratio of 2:8 is dissolved in hydrogen peroxide to obtain a mixed rare earth solution , and then dissolved in water with a content of 6g / l benzotriazole, a content of 8g / l tolyl benzotriazole, a content of 12g / l citric acid and a content of 16g / l copper complexing agent to prepare The base solution, and finally mix the base solution with the mixed rare earth solution, stir for 1 hour, let stand and filter to obtain the copper corrosion inhibitor.

[0022] Based on the copper corrosion inhibitor of this embodiment and its production method, it not only has good corrosion resistance to copper and its alloys, but also has a good appearance of the film adsorbed on the copper surface.

Embodiment 2

[0024] A kind of preparation method of copper corrosion inhibitor:

[0025] Benzotriazole and tolylbenzotriazole are used as the main raw materials for preparation. The specific preparation steps are: firstly, the mixture of cerium chloride and lanthanum chloride with a mass ratio of 4:6 is dissolved in hydrogen peroxide to obtain a mixed rare earth solution , and then dissolved in water with a content of 7g / l benzotriazole, a content of 7g / l tolyl benzotriazole, a content of citric acid of 15g / l and a content of 13g / l copper complexing agent to prepare The base solution, and finally mix the base solution with the mixed rare earth solution, stir for 1 hour, let stand and filter to obtain the copper corrosion inhibitor.

[0026] Based on the copper corrosion inhibitor of this embodiment and its production method, it not only has good corrosion resistance to copper and its alloys, but also has a good appearance of the film adsorbed on the copper surface.

Embodiment 3

[0028] A kind of preparation method of copper corrosion inhibitor:

[0029] Benzotriazole and tolylbenzotriazole are used as the main raw materials for preparation. The specific preparation steps are: firstly, the mixture of cerium chloride and lanthanum chloride with a mass ratio of 3:7 is dissolved in hydrogen peroxide to obtain a mixed rare earth solution , and then dissolved in water with a content of 8g / l benzotriazole, a content of 10g / l tolyl benzotriazole, a content of 20g / l citric acid and a content of 24g / l copper complexing agent to prepare The base solution, and finally mix the base solution with the mixed rare earth solution, stir for 1 hour, let stand and filter to obtain the copper corrosion inhibitor.

[0030] Based on the copper corrosion inhibitor of this embodiment and its production method, it not only has good corrosion resistance to copper and its alloys, but also has a good appearance of the film adsorbed on the copper surface.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a copper corrosion inhibitor. The copper corrosion inhibitor is prepared from benzotriazole and methyl benzotriazole as main raw materials. The preparation method comprises the following steps: at first, dissolving rare earth and a mixture of the rare earth through hydrogen peroxide to obtain a mixed rare earth solution; then, dissolving benzotriazole, methyl benzotriazole, citric acid and a copper complexing agent by using water to prepare a basic solution; finally, mixing the basic solution with the mixed rare earth solution, stirring, standing, and filtering to obtain the copper corrosion inhibitor. According to the preparation method, a process is simple and easy to operate, the production efficiency is high, and the production time is short; the copper corrosion inhibitor is environmentally friendly and free of environmental pollution; copper and copper alloy treated with the inhibitor is very good in corrosion resistance, and a film adsorbed on the copper surface is relatively good in appearance; rare-earth salts as high-yield resources in our nation are utilized, the use cost is low, the effect is good, and the large-scale production can be realized.

Description

technical field [0001] The invention relates to a preparation method of a copper corrosion inhibitor, which belongs to the field of compound corrosion inhibition. Background technique [0002] Copper has excellent strength, machinability, thermal conductivity, electrical conductivity, weldability and corrosion resistance. It has been widely used in various fields such as industry, military and civilian for a long time. Under normal circumstances, copper is listed as one of the metals with high corrosion resistance, but it will cause serious corrosion in harsh environments, which will have adverse effects on its production, use and secondary processing. Therefore, research and It is of great significance to develop corrosion inhibitors for copper and copper alloys. At present, there are many kinds of corrosion inhibitors for copper and its alloys. [0003] Inorganic corrosion inhibitor: Inorganic salt corrosion inhibitor is mainly used for the corrosion inhibition of copper...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23F11/14
Inventor 黄海波黄奎生王宏黄雪平
Owner NANTONG BOTAO CHEM