Preparation method of environment-friendly cooling liquid

A kind of cooling liquid, environmental protection technology, applied in the field of preparation of environmental protection cooling liquid, can solve problems such as damage to human health, and achieve the effect of prolonging service life, reducing fuel consumption and prolonging life.

Inactive Publication Date: 2021-03-09
安徽天驰先锋油品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although ethylene glycol can effectively lower the freezing point and increase the boiling point of engine coolant, it is harmful to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] A preparation method of environment-friendly cooling fluid, the brake fluid comprises the following components in weight percentage:

[0018] 30%~50% deionized water, 15%~25% antifreeze composition, 0.5%~5% 2-ethylhexanoic acid corrosion inhibitor, 0.05%~0.4% 2-mercaptobenzothiazole, 2.5-4% surface Active additives, 0.05-0.1% defoamer, 0.1-0.3% isooctanoic acid, 0.1-5% viscosity reducer, 0.1-5% stabilizer, 0.1-1% graphene, 10%-30% pH regulator and 0.001 % to 0.005% dye composition, wherein the antifreeze composition is a mixture of propionic acid with 1 to 8 carbon atoms and adipic acid with 1 to 8 carbon atoms;

[0019] Described preparation method comprises:

[0020] Put the above raw materials into the reaction kettle, stir at the temperature from room temperature to 90°C until the various raw materials are fully dissolved, and then filter to obtain the brake fluid product.

Embodiment 1

[0022] A coolant consisting of the following mass fraction components:

[0023] 30% deionized water, 15% antifreeze composition, 0.5% 2-ethylhexanoic acid corrosion inhibitor, 0.05% 2-mercaptobenzothiazole, 2.5% surface active additives, 0.05% defoamer, 0.1% isooctanoic acid, 0.1% viscosity reducer, 0.1% stabilizer, 0.1% graphene, 10% pH regulator and 0.001% dye composition, wherein the antifreeze composition is propionic acid with 2 carbon atoms and hexanoic acid with 2 carbon atoms A mixture of diacids.

Embodiment 2

[0025] A coolant consisting of the following mass fraction components:

[0026] 40% deionized water, 20% antifreeze composition, 2.5% 2-ethylhexanoic acid corrosion inhibitor, 0.2% 2-mercaptobenzothiazole, 3% surface active additive, 0.07% defoamer, 0.2% isooctanoic acid, 2% viscosity reducer, 2% stabilizer, 0.5% graphene, 20% pH regulator and 0.003% dye composition, wherein the antifreeze composition is propionic acid with 6 carbon atoms and hexanoic acid with 6 carbon atoms A mixture of diacids.

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PUM

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Abstract

The invention relates to a preparation method of a cooling liquid, in particular, a preparation method of an environment-friendly cooling liquid. The cooling liquid comprises the following componentsin percentage by weight: 30%-50% of deionized water, 15%-25% of an anti-freezing composition, 0.5%-5% of a 2-ethylhexoic acid corrosion inhibitor, 0.05%-0.4% of 2-mercaptobenzothiazole, 2.5-4% of a surface active additive, 0.05-0.1% of a defoaming agent, 0.1-0.3% of isocaprylic acid, 0.1-5% of a viscosity reducer, 0.1-5% of a stabilizer, 0.1-1% of graphene, 10-30% of a pH regulator and 0.001-0.005% of a dye, wherein the anti-freezing composition is a mixture of propionic acid with 1-8 carbon atoms and adipic acid with 1-8 carbon atoms. A protective layer which can be formed by the surface active additive in the automobile cooling liquid can prevent corrosion, cavitation and scaling of an inner surface, the protective layer can be formed very fast; and meanwhile, the consumption rate of unitary or binary organic acid is low, so that the service life is prolonged.

Description

technical field [0001] The invention relates to a method for preparing a cooling liquid, in particular to a method for preparing an environment-friendly cooling liquid. Background technique [0002] At present, vehicle engine coolant is mainly composed of deionized water, antifreeze and various additives. One of the main functions of coolant is antifreeze at low temperature, so antifreeze plays a vital role in the composition of coolant. Ethylene glycol has become the most widely used coolant antifreeze due to its good effect of lowering the freezing point, high boiling point and moderate viscosity. Although ethylene glycol is effective in lowering the freezing point and raising the boiling point of engine coolant, it is harmful to human health. The toxicity associated with ethylene glycol is caused by the metabolites of ethylene glycol, and its metabolites are hydroxyaldehydes, glycolic acid, and oxalic acid in turn, which can easily cause acid-base balance imbalance in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 王阳
Owner 安徽天驰先锋油品制造有限公司
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