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Anticorrosion rust eliminating agent and its preparation method and application

A rust remover and anti-corrosion technology, applied in the field of anti-corrosion and rust remover and its preparation, can solve the problems of boiler, pipeline corrosion, unsafe use, many processes, etc., achieve strong biodegradability, improve production efficiency, simplify The effect of the cleaning process

Inactive Publication Date: 2005-06-08
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To remove them, people now often use a mixture of various strong acids or alkalis to clean them. After cleaning, they need to be phosphating, which is time-consuming and labor-intensive.
This kind of substance will not only corrode the skin, damage the clothes, but also emit an unbearable and strong irritating smell, which is harmful to human health, very unsafe to use, brings great inconvenience to the operators, and seriously pollutes the environment. Caused severe corrosion to boilers, pipes themselves, reducing their reuse rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: a kind of anticorrosion derusting agent, component is as follows, is weight percent:

[0031] Ammonium sulfamic acid 60%, ammonium hydrogen fluoride 2.0%, phosphoric acid 30%, edetate disodium 0.5%, calcium hypophosphite 0.05%, hexamethylenetetramine 1.0%, copper sulfate 0.2%, dodecylbenzene Sodium Sulfonate 6.0%, Cocoyl Monoethanolamine 0.25%.

[0032] The preparation method is as follows: weighing the above-mentioned components respectively according to the proportion, adding them in sequence, adding water to prepare a 5.0% solution, and stirring evenly.

Embodiment 2

[0033] Embodiment 2: a kind of anticorrosion derusting agent, component is as follows, is weight percent:

[0034] Sulfamic acid 57%, ammonium hydrogen fluoride 3.0%, phosphoric acid 30%, edetate disodium 1.5%, calcium hypophosphite 0.1%, hexamethylenetetramine 1.05%, copper carbonate 0.15%, dodecylbenzene Sodium Sulfonate 7.0%, Cocoyl Monoethanolamine 0.2%

[0035] The preparation method is as follows: weighing the above-mentioned components respectively according to the proportion, adding water to prepare a 6.0% solution, and stirring until uniform.

Embodiment 3

[0036] Embodiment 3: a kind of anticorrosion derusting agent, component is as follows, is weight percent:

[0037] Ammonium sulfamic acid 60%, ammonium hydrogen fluoride 2.5%, phosphoric acid 25%, disodium edetate 0.8%, calcium hypophosphite 0.35%, hexamethylenetetramine 1.2%, copper sulfate 0.15%, dodecylbenzene Sodium Sulfonate 10%.

[0038] The preparation method is as follows: weighing the above-mentioned components respectively according to the proportion, adding water to prepare a 7.0% solution, and stirring until uniform.

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Abstract

An anticorrosion rust-removing agent for the pipeline is prepared from aminosulfonic acid, ammonium hydrogen fluoride, phosphoric acid, Na2EDTA, calcium hypophosphite, hexamethine tetramine, copper salt, sodium dodecylphenylsulfonate, etc through proportional mixing, dissolving in water and stirring. Its application method is also disclosed.

Description

(1) Technical field [0001] The invention relates to an anti-corrosion and derusting agent, a preparation method and application thereof, and belongs to the technical field of metal surface cleaning treatment. (2) Background technology [0002] Boilers and piping equipment made of steel will form scale on the surface when they are in contact with water and heated for a long time. The existence of scale will seriously affect the heat transfer efficiency of the boiler, and the water delivery system of the pipeline will also reduce the water delivery efficiency due to internal scaling. In severe cases, it will cause the boiler and pipeline to explode, so they need to be cleaned after a period of use. [0003] This kind of scale is impure substances in water such as calcium, magnesium, aluminum, silicon dioxide and iron rust, as well as ionic dissolved substances or suspended substances, etc., which are crystallized and precipitated by environmental changes such as pH, temperatur...

Claims

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Application Information

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IPC IPC(8): C23G5/02
Inventor 李晓俊刘丰李静
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI