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A kind of degreasing, rust-removing and rust-preventing agent and its preparation method and application

A rust inhibitor and penetrant technology, applied in the field of chemical preparations, can solve the problems of short service life, poor paint adhesion, poor stability of liquid medicine, etc., and achieve the effect of long service life, strong adhesion and stable properties.

Active Publication Date: 2020-07-03
长沙兴远环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been some studies on the four-in-one treatment process of oil removal, rust removal, phosphating, and passivation, but due to poor stability of the chemical solution, short service life, low corrosion resistance, poor adhesion to paint, and high cost, it has not been obtained. to promote

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0029] The present invention also provides a preparation method of an oil and rust remover, the specific steps comprising:

[0030] (1) Add 20-30 parts of water into the reaction kettle and raise the temperature to 40-60°C;

[0031] (2) Put 20-30 parts of HEDP in a beaker, slowly add 0.5-3 parts of tartaric acid, mix well; then slowly add 0-1 part of sodium pyrophosphate, stir well; then slowly add 0-10 parts of zinc lactate, Stir evenly; then slowly add 0-10 parts of sodium citrate, stir evenly; slowly add 0-10 parts of oxalic acid, stir well, and form a uniform solid mixture;

[0032] (3) Slowly add the solid mixture in step (2) to the warm water in step (1), 1000-3000 rpm, and stir evenly for 20-30 minutes;

[0033] (4) Dissolve 1-10 parts of corrosion inhibitor at 40-80°C and mix well;

[0034] (5) Pour the solution of step (4) into the solution of step (3), add 1-5 parts of penetrant, 1-5 parts of surfactant, 1000-3000 rpm, stir evenly for 20-30 minutes, That is, a liq...

Embodiment 1

[0036] The invention discloses an anti-rust and anti-rust agent for degreasing and rusting, which comprises the following components according to the important parts: 27 parts of HEDP, 1 part of tartaric acid, 1 part of sodium pyrophosphate, 5 parts of zinc lactate and 8 parts of sodium citrate , 8 parts of oxalic acid, 3 parts of surfactant, 5 parts of corrosion inhibitor, 3 parts of penetrant, and 25 parts of water.

[0037] The present invention also provides a preparation method of an oil and rust remover, the specific steps comprising:

[0038] (1) Add 25 parts of water into the reaction kettle and raise the temperature to 60°C;

[0039] (2) Put 27 parts of HEDP in a beaker, slowly add 1 part of tartaric acid, mix well; then slowly add 1 part of sodium pyrophosphate, stir well; then slowly add 5 parts of zinc lactate, stir well; then slowly add citric acid 8 parts of sodium, stir evenly; slowly add 8 parts of oxalic acid, stir well to form a uniform solid mixture;

[00...

Embodiment 2

[0044] The invention discloses an anti-rust and anti-rust agent for oil and rust, which comprises the following components according to the important parts: 28 parts of HEDP, 1.5 parts of tartaric acid, 1 part of sodium pyrophosphate, 8 parts of zinc lactate and 8 parts of sodium citrate , 8 parts of oxalic acid, 3 parts of surfactant, 5 parts of corrosion inhibitor, 3 parts of penetrant, and 25 parts of water.

[0045] The present invention also provides a preparation method of an oil and rust remover, the specific steps comprising:

[0046] (1) Add 25 parts of water into the reaction kettle and raise the temperature to 40°C;

[0047] (2) Put 28 parts of HEDP in a beaker, slowly add 1.5 parts of tartaric acid, mix well; then slowly add 1 part of sodium pyrophosphate, stir well; then slowly add 8 parts of zinc lactate, stir well; then slowly add citric acid 8 parts of sodium, stir evenly; slowly add 8 parts of oxalic acid, stir well to form a uniform solid mixture;

[0048] ...

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Abstract

The invention discloses an oil-removing, rust-removing and anti-rust agent as well as a preparation method and application thereof, belonging to the technical field of protective materials. The degreasing, rust-removing, anti-rust and anti-rust agent comprises the following components according to the important parts: 20-30 parts of HEDP, 0.5-3 parts of tartaric acid, 0-1 part of sodium pyrophosphate, 0-10 parts of zinc lactate, lemon 0-10 parts of sodium acid, 0-10 parts of oxalic acid, 1-10 parts of corrosion inhibitor. The present invention integrates degreasing, derusting and antirusting into one body, and can completely degrease and derust heavy anti-corrosion and heavy oil workpieces by ultrasonication for 5-10 minutes, and cover a layer of ultra-thin antirust oil, and the resistance to neutral salt spray can reach more than 80h . The oil-removing, rust-removing and rust-preventing agent of the present invention has no damage to the base material itself, does not contain strong acid, and has environmental-friendly raw materials. In addition, the oil-removing, rust-removing and anti-rust agent solution of the present invention has stable properties, long service life and strong adhesion.

Description

technical field [0001] The invention relates to an oil-removing, rust-removing and anti-rust agent as well as a preparation method and application thereof, belonging to the technical field of chemical preparations. Background technique [0002] Steel is an indispensable material in modern social and economic life. It is widely used in industrial and agricultural production and people's life. However, the surface of various steel products is easily corroded and rusted by atmospheric media and other factors. It takes about one year of steel. 20%-30% of the output. In order to protect steel products and prolong their service life, anti-corrosion treatment must be carried out on their surfaces. When taking various anti-corrosion measures for steel products, degreasing and rust removal are necessary steps. The traditional degreasing and derusting processes are generally carried out step by step, with large equipment investment, many processes, low efficiency, long processing tim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/08C23G1/04C23G1/06
CPCC23G1/04C23G1/06C23G1/088
Inventor 张丹郑磊黄婵娟
Owner 长沙兴远环保科技有限公司