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Engine coolant and preparation method thereof

A technology of engine coolant and sodium formate, which is applied in the field of engine coolant, can solve the problem of unsatisfactory comprehensive performance of coolant products, and achieve the effect of high anti-fouling and high stability

Inactive Publication Date: 2018-11-02
NINGBO JOYSONQUIN AUTOMOTIVE SYST HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overall performance of existing coolant products is still not ideal

Method used

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  • Engine coolant and preparation method thereof
  • Engine coolant and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Engine coolant raw materials: water 6000g, sodium formate 500g, borax 100g, potassium molybdate 6g, suberic acid 10g, sodium caprate 50g, sodium nitrate 10g, benzotriazole 10g, sodium hydroxide 20g, sodium metasilicate nonahydrate 20g , 1,2-propanediol 3000g, glycerol 700g, fluorescein sodium 0.03g, simethicone 0.2g, lanthanum chloride 1g, chelating agent 1g, silicate stabilizer 3g.

[0042] The chelating agent is obtained by stirring and mixing 0.5g ethylenediaminetetraacetic acid and 0.5g diethylenetriaminepentaacetic acid.

[0043] The silicate stabilizer is obtained by uniformly stirring and mixing 1 g of mannitol, 1 g of sorbitol, and 1 g of xylitol.

[0044] The preparation method of engine coolant comprises the following steps:

[0045] (1) Add 500g sodium formate, 100g borax, 6g potassium molybdate, 10g suberic acid, 50g sodium caprate, 10g sodium nitrate, 10g benzotriazole, 20g sodium hydroxide into 5000g water, stir to dissolve, then add 3g silicic acid The ...

Embodiment 2

[0049] It is basically the same as Example 1, except that the chelating agent is only 1 g of ethylenediaminetetraacetic acid. Obtain the engine coolant of embodiment 2.

Embodiment 3

[0051] It is basically the same as Example 1, except that the chelating agent is only 1 g of diethylenetriaminepentaacetic acid. Obtain the engine coolant of embodiment 3.

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Abstract

The invention discloses an engine coolant and a preparing method thereof. The engine coolant is prepared from, by weight, 500-700 parts of water, 40-60 parts of sodium formate, 5-15 parts of borax, 0.2-1.5 parts of potassium molybdate, 0.5-1.5 parts of octanedioic acid, 1-10 parts of sodium caprate, 0.5-1.5 parts of sodium nitrate, 0.5-1.5 parts of benzotriazole, 1-3 parts of sodium hydroxide, 1-3 parts of sodium metasilicate nonahydrate, 200-400 parts of 1,2-propylene glycol, 50-100 parts of glycerine, 0.001-0.008 part of sodium fluorescein, 0.01-0.08 part of simethicone, 0.05-0.15 part of lanthanum chloride, 0.05-0.15 part of chelating agent and 0.1-0.5 part of silicate stabilizer. The engine coolant is high in stability, freezing resistance, rust resistance and scaling resistance, capable of avoiding pipeline blocking, effectively preventing corrosion to ferrous metal, tin, copper and copper alloy, aluminum and aluminum alloy, overcoming the technical defect of traditional water-containing cooling liquid that boiling occurs easily, facilitating full-load and high-load operation of an engine and ensuring that a vehicle can travel safely in severe environments such as highlands, deserts and cold areas, and especially suitable for military vehicles, high-end vehicles and high-power heavy-load trucks and passenger cars.

Description

Technical field: [0001] The invention relates to an engine coolant, in particular to an engine coolant and a preparation method thereof. Background technique: [0002] Coolant, also known as antifreeze, antifreeze, water tank treasure, etc. The main function is to protect the normal and good operation of the engine. It circulates in the engine water tank to prevent freezing, boiling, rusting, and corrosion. to avoid confusion. [0003] Engine coolant, the common one is ethylene glycol-water solution, which is the basis. Due to the requirements of modern automobile technology, many additives are added to the coolant to protect various engines. These additives are different, resulting in different coolants. [0004] Coolant is mainly used in the cooling system of automobile engine, which has the functions of cooling, antifreezing, anti-scaling, anti-corrosion, and anti-boiling. The coolant is mainly composed of antifreeze, water, corrosion inhibitor, defoamer, dyeing agen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 袁娟
Owner NINGBO JOYSONQUIN AUTOMOTIVE SYST HLDG CO LTD
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