Engine cooling liquid complex agent and preparation method thereof

A technology of engine coolant and compounding agent, which is applied in the field of engine coolant, can solve problems such as difficult management, cumbersome and inconvenient production, poor corrosion inhibition performance of engine coolant, etc., and achieve simplified production operations, good stability and compatibility, The effect of good stability and compatibility

Inactive Publication Date: 2018-05-04
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) The corrosion inhibition performance of the engine coolant is not good;
[0004] (2) The production of engine coolant needs to add several to a dozen kinds of additives, the production is very cumbersome and inconvenient, and it is difficult to manage on site;
[0005] (3) The compatibility and stability of each component in the engine coolant is not ideal;

Method used

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  • Engine cooling liquid complex agent and preparation method thereof
  • Engine cooling liquid complex agent and preparation method thereof
  • Engine cooling liquid complex agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of engine coolant composite agent, is made up of base liquid and additive, wherein, base liquid is the mixture of octyldodecanol and water that weight ratio is 1:4, and described additive is made up of the following components by weight percentage of base liquid :

[0044]

Embodiment 2

[0046] A kind of engine coolant composite agent, is made up of base liquid and additive, wherein, base liquid is the mixture of octyldodecanol and water that weight ratio is 1:4, and described additive is made up of the following components by weight percentage of base liquid :

[0047]

Embodiment 3

[0049] A kind of engine coolant composite agent, is made up of base liquid and additive, wherein, base liquid is the mixture of octyldodecanol and water that weight ratio is 1:4, and described additive is made up of the following components by weight percentage of base liquid :

[0050]

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PUM

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Abstract

The invention provides an engine cooling liquid complex agent. The complex agent is prepared from components including a base solution and additives, wherein the base solution contains water and Guerbet alcohol in a weight ratio of (3-5):1; the additives comprise boric acid, a benzotriazole derivative, nitrite, N-tert-butoxycarbonyl-2-methylalanine, molybdate, a pH regulator, a silicate stabilizer, silicate, phosphono polyacrylic acid and a defoamer. According to the complex agent, a nitrite and molybdate compounding technology and related adjuvants are selected for formula screening, the formula is subjected to physical and chemical analysis and bench evaluation according to technical standards, and the formula meets NB / SH / T0521-2010 standard request.

Description

technical field [0001] The invention belongs to the technical field of engine coolant, and in particular relates to an engine coolant composite agent and a preparation method thereof. Background technique [0002] Engine coolant is an important part of automotive chemicals, especially with the continuous development of automotive engine technology, the performance of engine coolant directly affects whether the engine can run normally and efficiently for a long time. Every upgrade of engine technology is also accompanied by an upgrade of engine coolant technology. Coolant technology is mainly additive technology, and coolant additives include functional agents such as corrosion inhibitors, scale inhibitors, and defoamers. The existing engine coolant mainly has the following defects and deficiencies: [0003] (1) The corrosion inhibition performance of the engine coolant is not good; [0004] (2) The production of engine coolant needs to add several to a dozen kinds of addi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 张春辉张凯蛟冯会良
Owner CHINA PETROLEUM & CHEM CORP
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