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Corrosion inhibitor of internal combustion engine cooling liquid and production process

A technology for internal combustion engines and coolants, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve problems such as misleading research directions, rare raw materials, high prices, etc., to overcome toxicity problems Effect

Inactive Publication Date: 2009-03-11
袁晓东 +2
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  • Summary
  • 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

[0013] Add the corrosion inhibitor of the present invention to tap water, clean well water, river water and spring water, and the ingredients in it will form a dense, thin and tough film on the metal surface to slow down cavitation and corrosion. The scale inhibitor and scale dissolver It can make the scale-forming ions form stable complexes and prevent scale deposition.

[0014] The patent is illustrated below with some examples that can illustrate the present invention rather than limit the present invention. Unless otherwise specified, all percentages are percentages by mass.

[0015] Example 1 According to the components in Table 1, adjust the pH value of the solution with sodium hydroxide to be 8-9 to prepare a corrosion inhibitor and rust preventive agent

[0016] Table 1 Composition of samples

[0017] sample Phytic acid Borax Hydroxyphenylhydrazine carbohydrazide polyacrylamide sodium hydroxide water 1 1％ 0.3％ 0.5％ 0.01...

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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, and consists of additives and a group of balanced corrosion inhibitors, 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 the solution, etc. It can inhibit the corrosion of various metals in the cooling system, cylinder liner cavitation, and water pump cavitation. It has a significant protective effect on the engine cooling system, inhibits the growth of scale components according to the inherent law and adheres to the cooling system, and has good storage stability. It is a water treatment agent with good rubber compatibility and good biodegradability. 2 background technology [0002] 1) Problems with the engine cooling system ...

Claims

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Application Information

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IPC IPC(8): C02F5/12
Inventor 袁晓东倪丽高永建
Owner 袁晓东
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