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A kind of metal protection agent and its preparation method and application

A metal protective agent, amino acid technology, applied in the direction of metal material coating technology, etc., can solve the problems of increased labor intensity, short protection time, increased economic burden, etc., to achieve long-term metal protection, slow down the corrosion process, and reduce requirements Effect

Active Publication Date: 2022-06-03
北京可林维尔化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, when adding the protective agent, it needs to be re-added many times, and the protection time is short, and the protection time is 30 days to 6 months. Once this time is exceeded, it needs to be added again, which not only increases the labor intensity of the workers , but also increased the economic burden

Method used

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  • A kind of metal protection agent and its preparation method and application
  • A kind of metal protection agent and its preparation method and application
  • A kind of metal protection agent and its preparation method and application

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preparation example Construction

[0036] The present invention also provides a preparation method of the metal protective agent, comprising the following steps:

[0037] (1) Amino acid, chitosan, citrate, lanthanum acetate, sodium molybdate and water are mixed to obtain solution A;

[0038] (2) solution A and dimethyl ketoxime are mixed to obtain solution B;

[0039] (3) Mixing the solution B and the remaining components to obtain a metal protective agent.

[0040] In the present invention, the mixing in the step (1) is preferably carried out under stirring conditions, and the stirring speed is preferably 160-200 rpm, more preferably 170-190 rpm, more preferably 175-185 rpm; The time is preferably 20 to 40 minutes, more preferably 22 to 38 minutes, and more preferably 28 to 32 minutes.

[0041] In the present invention, the mixing in the step (2) is preferably performed under stirring conditions, and the rotational speed of the stirring is preferably 160-200 rpm, more preferably 170-190 rpm, more preferably ...

Embodiment 1

[0047]A metal protecting agent, comprising the following components in parts by mass: 3 parts of sodium N-lauroyl-L-glutamate, 2 parts of tryptophan, 2 parts of glutamic acid, 2 parts of aspartic acid, and chitosan 3 parts of sugar, 20 parts of diethanolamine sebacate, 1.2 parts of morpholine, 2 parts of dimethyl ketoxime, 4 parts of sodium molybdate, 3 parts of cerium citrate, 3 parts of lanthanum citrate, 1.2 parts of lanthanum acetate, 55 parts of water share.

Embodiment 2

[0049] A metal protective agent, comprising the following components in parts by mass: 4 parts of N-lauroyl-L-sodium glutamate, 2.5 parts of tryptophan, 2.5 parts of glutamic acid, 2.5 parts of aspartic acid, and chitosan 4 parts of sugar, 22 parts of diethanolamine sebacate, 1 part of morpholine, 2.3 parts of dimethyl ketoxime, 5 parts of sodium molybdate, 2 parts of cerium citrate, 2 parts of lanthanum citrate, 1 part of lanthanum acetate, 56 parts of water share.

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Abstract

The invention relates to the technical field of material protection. The invention provides a metal protective agent. The lone pair of electrons in each component of the invention combines with the empty orbital on the metal surface to form a coordination bond, which is adsorbed on the metal surface to form a protective film, which hinders the charge or corrosion related to the corrosion reaction. The transfer of substances slows down the corrosion process. This kind of protective film has a large adsorption force and strong adsorption capacity. It will not be easily destroyed after it is formed, and it can protect the metal for a long time. The invention also provides a preparation method of the metal protective agent, which has simple operation, step-by-step stirring, no need for heating, and lowers the requirements on process conditions. The invention also provides the application of the metal protective agent in metal protection, which can effectively prevent corrosion and bring a new direction for metal protection. The invention does not contain toxic and harmful ions, the discharge can be degraded by itself, and there is no secondary pollution, so it is a new type of green environmental protection product.

Description

technical field [0001] The invention relates to the technical field of material protection, in particular to a metal protection agent and a preparation method and application thereof. Background technique [0002] Corrosion of metal equipment and pipes by water is an important cause of shortened equipment life, material loss and performance deterioration, causing hundreds of millions of economic losses every year. The conventional protection method is to drain the water and store it naturally, but this will accelerate the corrosion of oxygen. In order to avoid reducing the possibility of corrosion and reducing economic losses, a variety of metal protective agents have been developed in the prior art. At present, domestic metal protective agents are divided into: liquid phase, gas phase, solid phase, coating and other methods. Prevent metal corrosion. However, the above-mentioned anticorrosion methods have many problems. In the coating method, most of the products need to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/05
CPCC23C22/05
Inventor 王学博
Owner 北京可林维尔化工有限公司