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Rust removing detergent

A detergent and acid technology, applied in the field of detergents, can solve the problems of deteriorating water quality, shortening the life of exhaust pipes, increasing energy costs, etc., and achieves the effects of rapid rust removal, pollution reduction, and protection of metal exhaust pipes.

Inactive Publication Date: 2012-10-03
QINGDAO KAIXI PIER ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this rust occurs on both sides 5% at the same time, it will cause a completely unusable state
Rust or fouling in the pipes in factories or buildings will reduce the life of the pipes, which will become the main reason for increasing energy costs and deteriorating water quality

Method used

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  • Rust removing detergent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 50.0% by weight of distilled water at room temperature, 20.0% by weight of tartaric acid, and 10.0% by weight of soda triphosphate were stirred for 1 hour. Then add potassium hydroxide 20.0% by weight until the pH value reaches 6.9 to 7.2 to make the pH reach neutral, and add distilled water to other parts to form a 100% by weight neutral detergent composition.

Embodiment 2

[0031] 58.0% by weight of distilled water at room temperature, 20.0% by weight of mercaptoacetic acid, and 2.0% by weight of ethylenediaminetetraacetic acid 4 sodium (EDTA-4 sodium salt) were stirred for 1 hour. Then add 20.0% by weight of magnesium hydroxide until the pH value reaches 6.9 to 7.2 to make the pH reach neutral, and add distilled water to other parts to form a 100% by weight neutral detergent composition.

Embodiment 3

[0033] 69.0% by weight of distilled water at room temperature, 15.0% by weight of mercaptoacetic acid, and 1.0% by weight of ethylene glycol ether diamine tetraacetic acid were stirred for 1 hour. Then add 15.0% by weight of sodium bicarbonate until the pH value reaches 6.9 to 7.2, making the pH reach neutral, and add distilled water to other parts to form a 100% by weight neutral detergent composition.

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PUM

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Abstract

The invention relates to a detergent, in particular to a neutral rust removing detergent. The rust removing detergent comprises the following components in percentage by weight: 0.8-68.0 percent of acidic agent, 0.5-19.5 percent of chelating agent, 0.5-25 percent of alkaline substance and the balance of water. The rust removing detergent has the beneficial effects that (1) rust is removed or red rust is prevented form being produced in a throw-in, spray or sink mode, a non-dynamic film (Passivity Layer) is protected, iron rust or scales are not produced on various types of drainage pipes or water tanks and the like when the rust removing detergent is used in facilities using water such as a boiler, a heat exchanger, a circulating cooler and a water supply pipe, and a clean state is kept for a long time, (2) the detergent is neutral, the metal drainage pipe can be effectively protected, a quick, safe and comfortable working environment is provided, the health of operation personnel is protected, the pollution to water quality and the environment is more effectively reduced, and a better effect is achieved, and (3) the detergent is quick in rust removing, the rust can be completely removed in one hour, and the non-dynamic thin film can be protected.

Description

technical field [0001] The invention relates to a detergent, in particular to a neutral rust-removing detergent. Background technique [0002] Metal rusting, eg, iron rusting is a very natural phenomenon, however, is going to become a serious problem for us. Because spend a lot of effort and the structure thing or modeling thing etc. of money construction, waste in vain. At the same time, metal corrosion can also cause serious safety accidents. So preventing metals from corroding is as important a matter as making pure metals. [0003] Generally speaking, metal corrosion can be understood as the process of metal returning to its natural state. That is, corrosion refers to the process of metal oxidation. When the metal is exposed to the air, an oxide film is formed on the surface to protect the inside and maintain its luster. However, in the presence of moisture, anions, and gaseous oxides, corrosion easily occurs, forming metal oxides that pose problems in terms of stren...

Claims

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Application Information

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IPC IPC(8): C23G1/24
Inventor 李东日
Owner QINGDAO KAIXI PIER ENVIRONMENTAL PROTECTION TECH CO LTD
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