CN112457827A

CN112457827A - Preparation method of environment-friendly cooling liquid

Info

Publication number: CN112457827A
Application number: CN202011508015.0A
Authority: CN
Inventors: 王阳
Original assignee: Anhui Tianchi Xianfeng Oil Products Manufacturing Co ltd
Current assignee: Anhui Tianchi Xianfeng Oil Products Manufacturing Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-09

Abstract

The invention relates to a preparation method of a cooling liquid, and discloses a preparation method of an environment-friendly cooling liquid, wherein the brake liquid comprises the following components in percentage by weight: 30-50% of deionized water, 15-25% of an antifreezing composition, 0.5-5% of a 2-ethylhexanoic 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 isooctanoic 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 antifreezing composition is a mixture of propionic acid with 1-8 carbon atoms and adipic acid with 1-8 carbon atoms. The protective layer formed by the surface active additive in the automobile cooling liquid can prevent the corrosion, cavitation and scaling of the inner surface, and the protective layer is formed very quickly, and simultaneously has low consumption rate of monobasic or dibasic organic acid, and prolongs the service life.

Description

Preparation method of environment-friendly cooling liquid

Technical Field

The invention relates to a preparation method of cooling liquid, in particular to a preparation method of environment-friendly cooling liquid.

Background

At present, vehicle engine coolants are composed mainly of deionized water, antifreeze and various additives. One of the main functions of the coolant is low temperature freeze protection, and thus the antifreeze plays a crucial role in the composition of the coolant. The glycol has the advantages of good effect of lowering the freezing point, high boiling point, moderate viscosity and the like, so the glycol becomes the most widely applied coolant antifreeze. Although ethylene glycol is effective in lowering the freezing point and raising the boiling point of engine coolant, it is detrimental to human health. The toxicity related to ethylene glycol is caused by metabolites of ethylene glycol, and the metabolites are hydroxy aldehyde, glycolic acid and oxalic acid in sequence, so that the acid-base balance in a human body is easy to be disordered, and the kidney is damaged.

Researchers have therefore sought non-toxic antifreeze agents such as propylene glycol to replace ethylene glycol. Meanwhile, in recent years, the prices of ethylene glycol and propylene glycol have been increasing, and glycol occupies more than half of the cost of coolant, so that glycol has a great influence on the engine coolant industry, and people are paying attention to antifreeze other than glycol.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the preparation method of the primary cooling liquid, which has the advantages of greatly improved conductivity, full combustion of fuel oil, high power conversion rate, low oil consumption and the like.

(II) technical scheme

In order to achieve the purposes of greatly improving the conductivity, fully burning fuel oil, high power conversion rate and low oil consumption, the invention provides the following technical scheme: the preparation method of the environment-friendly cooling liquid comprises the following components in percentage by weight:

30-50% of deionized water, 15-25% of an antifreezing composition, 0.5-5% of a 2-ethylhexanoic 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 isooctanoic 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 antifreezing composition is a mixture of propionic acid with 1-8 carbon atoms and adipic acid with 1-8 carbon atoms;

the preparation method comprises the following steps:

the raw materials are put into a reaction kettle, stirred at the temperature of room temperature to 90 ℃ until the raw materials are fully dissolved, and then filtered, so that the brake fluid product can be obtained.

(III) advantageous effects

Compared with the prior art, the invention provides a preparation method of an environment-friendly cooling liquid, which has the following beneficial effects:

1. the conductivity is greatly improved, fuel oil is fully combusted, the power conversion rate is high, the oil consumption is low, the components of the discharged tail gas are improved, the contents of hydrocarbon and carbon monoxide are reduced, the particle size and the number of particles are greatly reduced, and the environment is protected.

2. The automobile cooling liquid adopts deionized water, and effectively solves the problem of system leakage caused by dirt formed by calcium and magnesium ion deposition.

3. The corrosion resistance is good, metal in an engine system cannot be corroded after long-term use, and the service life of the engine is prolonged; the replacement frequency of the cooling liquid is reduced, the cooling liquid can be filled once, and the vehicle can safely run for 10 years or 80 kilometers.

The protective layer formed by the surface active additive in the automobile cooling liquid can prevent the corrosion, cavitation and scaling of the inner surface, and the protective layer is formed very quickly, and simultaneously has low consumption rate of monobasic or dibasic organic acid, and prolongs the service life.

Detailed Description

The preparation method of the environment-friendly cooling liquid comprises the following components in percentage by weight:

the preparation method comprises the following steps:

Example 1

The cooling liquid consists of the following components in percentage by mass:

30% deionized water, 15% of an antifreeze composition, 0.5% of a 2-ethylhexanoic acid corrosion inhibitor, 0.05% of 2-mercaptobenzothiazole, 2.5% of a surface active additive, 0.05% of an antifoaming agent, 0.1% of isooctanoic acid, 0.1% of a viscosity reducer, 0.1% of a stabilizer, 0.1% of graphene, 10% of a pH regulator and 0.001% of a dye, wherein the antifreeze composition is a mixture of propionic acid having 2 carbon atoms and adipic acid having 2 carbon atoms.

Example 2

The cooling liquid consists of the following components in percentage by mass:

40% deionized water, 20% of an antifreeze composition, 2.5% of a 2-ethylhexanoic acid corrosion inhibitor, 0.2% of 2-mercaptobenzothiazole, 3% of a surface active additive, 0.07% of a defoaming agent, 0.2% of isooctanoic acid, 2% of a viscosity reducer, 2% of a stabilizer, 0.5% of graphene, 20% of a pH regulator and 0.003% of a dye, wherein the antifreeze composition is a mixture of propionic acid having 6 carbon atoms and adipic acid having 6 carbon atoms.

Example 3

The cooling liquid consists of the following components in percentage by mass:

50% deionized water, 25% of an antifreezing composition, 5% of a 2-ethylhexanoic acid corrosion inhibitor, 0.4% of 2-mercaptobenzothiazole, 4% of a surface active additive, 0.1% of an antifoaming agent, 0.3% of isooctanoic acid, 5% of a viscosity reducer, 5% of a stabilizer, 1% of graphene, 30% of a pH regulator and 0.005% of a dye, wherein the antifreezing composition is a mixture of propionic acid having 8 carbon atoms and adipic acid having 8 carbon atoms.

In conclusion, the preparation method of the environment-friendly cooling liquid has the advantages of greatly improving the conductivity, fully burning the fuel oil, improving the power conversion rate, reducing the oil consumption, improving the components of the discharged tail gas, reducing the contents of hydrocarbon and carbon monoxide, greatly reducing the particle size and the number of particles and being more environment-friendly; the automobile cooling liquid adopts deionized water, so that the problem of system leakage caused by dirt formed by calcium and magnesium ion deposition is effectively solved; the corrosion resistance is good, metal in an engine system cannot be corroded after long-term use, and the service life of the engine is prolonged; the replacement frequency of the cooling liquid is reduced, the cooling liquid can be filled once, and the vehicle can safely run for 10 years or 80 kilometers.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The preparation method of the environment-friendly cooling liquid comprises the following components in percentage by weight:

the antifreezing composition mainly comprises 30-50% of deionized water, 15-25% of an antifreezing composition, 0.5-5% of a 2-ethylhexanoic 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 isooctanoic 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 antifreezing composition is a mixture of propionic acid with 1-8 carbon atoms and adipic acid with 1-8 carbon atoms.

2. A method for preparing the environment-friendly cooling liquid as defined in claim 1, wherein:

the preparation method comprises the following steps:

the raw materials are put into a reaction kettle, stirred at the temperature of room temperature to 90 ℃ until the raw materials are fully dissolved, and then filtered, so that a cooling liquid product can be obtained.