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Corrosion inhibitor of internal combustion engine cooling liquid and production process

A technology for internal combustion engines and composite corrosion inhibitors, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve problems such as misleading research directions, ineffective effects, and expensive prices, and achieve Effect of overcoming toxicity problems and suppressing heat transfer corrosion

Inactive Publication Date: 2011-10-26
袁晓东 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

USP6203719 uses polymerized organic acids to improve the life of the coolant and reduce the cavitation corrosion of the engine, but the raw materials of this product are rare and expensive, and the effect in actual use is not obvious. It is a patent that misleads the research direction and is also a patent. A key issue limiting its use

Method used

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  • Corrosion inhibitor of internal combustion engine cooling liquid and production process

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Embodiment Construction

[0025] The corrosion inhibitor of the present invention is added to tap water, clean well water, river water and spring water, and its components act on the metal surface to form a dense, thin and tough film to slow down cavitation and corrosion. It can make the scale-forming ions form stable complexes and prevent the deposition of scale.

[0026] The patent is described below with some examples that can illustrate the present invention rather than limit the present invention. Unless otherwise specified, all percentages are mass percentages.

[0027] Example 1 According to the components in Table 1, the pH value of the solution adjusted with sodium hydroxide is 8 to 9 to prepare a corrosion inhibitor and rust inhibitor

[0028] Table 1 Composition of the samples

[0029] sample

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PUM

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Abstract

The present invention discloses a novel engine coolant inhibitor, which belongs to the novel inhibitor of the internal combustion engine circulating cooling media. The complex production process of the inhibitor is a special method for preparing a complex inhibitor. The inhibitor is prepared from a formulation that unitary organic acid, binary organic acid, hydroxyphenyl hydrazine, phytic acid, siliceous compounds and siloxane stabilizer thereof, azole compounds, water stabilizer are added with pure water according to a weight ratio thereof. The inhibitor adopts a production process that the chemical agents are divided into class A and class B, which are respectively measured and packed after respectively mixed and mechanically and evenly grinded. The inhibitor has the characteristics of easy and quick dissolution, convenient use, convenient storing, convenient transportation, simple measurement, low price, and the like. The inhibitor is a novel inhibitor which is environment friendly, highly efficient, and good in corrosion inhibition performance.

Description

[0001] 1. Technical Field The present invention mainly uses water as the base liquid, which is composed of auxiliary agents and a group of balanced corrosion inhibitors, etc., including substituted or unsubstituted benzoic acid, C7-C14 dibasic acid, hydroxyphenylhydrazine compounds, carbonyl Hydrazine, phytic acid, pH regulator, deoxidizer, chelating agent, water quality stabilizer, polyacrylic acid or hydrolyzed polymaleic anhydride, silicon oxide compound and its stabilizer, pH buffer of solution, etc. It can inhibit the corrosion of various metals in the cooling system, the cavitation of the cylinder liner, and the cavitation of the water pump. It has a significant protective effect on the engine cooling system, inhibits the growth of scale components according to the inherent laws and the adhesion to the cooling system, and has good storage stability. Water treatment agent with good properties, thermal conductivity, good rubber compatibility and good biodegradability. 2 Bac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/12
Inventor 袁晓东倪丽高永建
Owner 袁晓东
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