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High-boiling-point all-organic cooling liquid and preparation method thereof

A high boiling point, cooling liquid technology, applied in the field of cooling liquid, can solve the problem of low boiling point of cooling liquid

Pending Publication Date: 2020-11-06
LIAONING SANTE PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low boiling point of the cooling liquid in the prior art, the present invention provides an all-organic high boiling point cooling liquid and its preparation method to meet the market demand for high boiling point cooling liquid

Method used

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  • High-boiling-point all-organic cooling liquid and preparation method thereof
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  • High-boiling-point all-organic cooling liquid and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0051]Step 1, get palladium acetate 22.45g (0.1mol), add in the reactor that is equipped with pressure detector, temperature detector, stirring device, cooling pipe and by-product receiving tank, add valeric acid 102g (1mol), in reactor Stir evenly, heat up to 60°C, vacuum 60mmHg, keep warm for 2.5 hours, distill off the acetic acid generated by the reaction, cool to room temperature to obtain 112.45g of palladium valerate-valeric acid homogeneous catalyst solution, containing 31.042g of palladium valerate (0.1mol palladium meter);

[0052] Step 2, 60.1g (1mol) of ethylenediamine and 90.12g (1mol) of ethylene glycol monoethyl ether are mixed in the reactor, stirred evenly in the reactor (from which the products of step 1 have been taken out), and 1g of palladium valerate is added ~ valeric acid homogeneous catalyst solution, feed air, stir evenly, control the temperature at 90°C, vacuum 100mmHg, react for 2.5 hours, steam the water generated by the reaction to obtain 128g (1mo...

Embodiment 2

[0055] Step 1, get palladium acetate 44.9g (0.2mol), add in the reactor that is equipped with pressure detector, temperature detector, stirring device, cooling pipe and by-product receiving tank, add valeric acid 102g (1mol), in reactor Stir evenly, heat up to 100°C, vacuum 10mmHg, keep warm for 2 hours, distill off the acetic acid generated by the reaction, cool to room temperature to obtain 122.9g of palladium valerate-valeric acid homogeneous catalyst solution, containing 62.084g of palladium valerate (0.2mol palladium meter);

[0056] Step 2, 60.1g (1mol) of ethylenediamine and 180.24g (2mol) of ethylene glycol monoethyl ether are mixed in the reactor, stirred evenly in the reactor (from which the products of step 1 have been taken out), and 0.1g of valeric acid is added Palladium~valeric acid homogeneous catalyst solution, pass into air, stir evenly, control temperature at 100 ℃, vacuumize 10mmHg, react for 2 hours, steam the water that reacts to generate, obtain 2-alkoxy...

Embodiment 3

[0059] Step 1, get palladium acetate 67.35g (0.3mol), add in the reactor that is equipped with pressure detector, temperature detector, stirring device, cooling pipe and by-product receiving tank, add valeric acid 102g (1mol), in reactor Stir evenly, heat up to 80°C, vacuum 120mmHg, keep warm for 3 hours, distill off the acetic acid generated by the reaction, cool to room temperature to obtain 133.35g of palladium valerate-valeric acid homogeneous catalyst solution, containing 93.13g of palladium valerate (0.3mol palladium meter);

[0060] Step 2, 60.1g (1mol) of ethylenediamine and 270.36g (3mol) of ethylene glycol monoethyl ether are mixed in the reactor, stirred evenly in the reactor (from which the products of step 1 have been taken out), and 10g of palladium valerate is added ~ valeric acid homogeneous catalyst solution, feed into air, stir evenly, control temperature at 95 ℃, vacuumize 55mmHg, react for 3 hours, steam the water that reaction generates, obtain 2-alkoxyl i...

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Abstract

The invention relates to a high-boiling-point all-organic cooling liquid and a preparation method thereof, wherein a molar ratio of a 2-alkoxy imidazoline compound to diol monoether to diol to diol diether is (0.5-2):(1-3):(1-3):(1-3). The preparation method comprises the following steps: adding palladium acetate into excessive micromolecular organic acid solution to prepare micromolecular organicacid palladium-micromolecular organic acid homogeneous catalyst solution; mixing ethylenediamine and diol monoether, adding the micromolecular organic acid palladium-micromolecular organic acid homogeneous catalyst solution, and preparing a 2-alkoxy imidazoline compound under the condition of introducing air; mixing the 2-alkoxy imidazoline compound, diol monoether, diol and diol diether to prepare the high-boiling-point all-organic cooling liquid. According to the high-boiling-point all-organic cooling liquid, a pH regulator, a bactericide, an enzyme inhibitor and an anticorrosive agent do not need to be added additionally, and all indexes meet the GB29743-2013 motor vehicle engine cooling liquid standard.

Description

technical field [0001] The invention belongs to the technical field of cooling liquid, and relates to a high-boiling all-organic cooling liquid and a preparation method thereof. Background technique [0002] Currently commercially available automotive engine coolants are composed of water and glycols, and generally have a boiling point between 100 and 110°C. Automobile engines are composed of copper, cast copper, aluminum, cast aluminum, iron or cast iron and other accessories and organic seals. Due to the existence of water, the above-mentioned metal fittings are easy to corrode. In order to prevent the fittings from corroding, pH regulators, bactericides, anti-enzyme agents and anti-corrosion agents must be added. Due to the existence of water, these pH regulators, bactericides, anti-enzyme agents and anti-corrosion agents have a short lifespan at 100-110°C at high temperatures, and they need to be replaced after a period of use, otherwise when they fail, It will serious...

Claims

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Application Information

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IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 刘辉王连竹王海祥
Owner LIAONING SANTE PETROCHEM
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