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A high-temperature resistant long-life engine coolant
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An engine coolant, eleven technology, applied in the chemical industry, to achieve the effect of preventing blackening, preventing rust, and excellent corrosion inhibition ability
Active Publication Date: 2021-01-15
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology
[0005] To sum up, there is no technology that can meet the requirements of internal combustion engine engine coolant and exhaust gas heating cabin heating system.
Method used
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Embodiment 1
[0028] An engine coolant, made by mixing the following raw materials: ethylene glycol 1000kg, undecanedioic acid 7kg, gluconic acid 4.5kg, 2-ethylhexanoic acid 1.5kg, 2,3-dihydroxybenzoic acid 5kg, 2-amino-6-nitrobenzothiazole 0.5kg, methylbenzotriazole 2.5kg, acetylsalicylic acid 3kg, sodium benzoate 4kg, PE 6200 0.45kg, deionized water 1500kg, sodium hydroxide 12kg.
Embodiment 2
[0030] An engine coolant, made by mixing the following raw materials: ethylene glycol 850kg, glycerol 150kg, undecanedioic acid 8kg, gluconic acid 3.5kg, 2-ethylhexanoic acid 3kg, 2,3-dihydroxy Benzoic acid 7.5kg, 2-amino-6-nitrobenzothiazole 0.5kg, methylbenzotriazole 2.5kg, acetylsalicylic acid 4kg, sodium benzoate 4kg, PE 6200 0.4kg, deionized water 1500kg, hydrogen Sodium oxide 13kg.
Embodiment 3
[0032] An engine coolant, made by mixing the following raw materials: ethylene glycol 500kg, propylene glycol 500kg, undecanedioic acid 8kg, gluconic acid 4.5kg, 2-ethylhexanoic acid 2.5kg, 2,3-dihydroxybenzene Formic acid 6.5kg, 2-amino-6-nitrobenzothiazole 1.5kg, methylbenzotriazole 2.5kg, acetylsalicylic acid 3kg, sodium benzoate 4kg, PE 6200 0.5kg, deionized water 1500kg, hydroxide Sodium 15kg.
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Abstract
The present invention provides an engine cooling liquid composition, which comprises the following raw materials by weight: 1000 parts of an anti-freezing agent, 5-15 parts of undecanedioic acid, 1-5parts of gluconic acid, 2-4 parts of 2-ethylhexanoic acid, 3-10 parts of 2,3-dihydroxybenzoic acid, 0.5-2 parts of 2-amino-6-nitrobenzothiazole, 1-5 parts of methylbenzotriazole, 2-5 parts of acetylsalicylic acid, 3-6 parts of sodium benzoate, 0.1-0.9 part of an antifoaming agent, 20-2000 parts of deionized water, and an appropriate amount of a pH value adjusting agent. According to the present invention, the engine cooling liquid composition has characteristics of high-temperature resistance, multi-metal anti-corrosion ability, long service life, environmental friendliness and the like, and can meet the technical requirements of ASTM D3306.
Description
technical field [0001] The invention relates to an engine coolant, in particular to a liquid used in a motor vehicle engine cooling system, which has antifreeze, anticorrosion, cooling and other functions, and is also characterized by high temperature resistance and long life, and belongs to the field of chemical industry. Background technique [0002] Engine coolant has anti-freezing, anti-boiling, anti-corrosion and heat transfer functions, and it is used in motor vehicle engine coolant systems for maximum efficiency and protection. Engine thermal management has become an important aspect of engine technology development. On internal combustion engine bus engines, in order to effectively use the waste heat of the engine coolant to provide heating for the winter compartment, the waste heat of the exhaust gas is often used to heat the engine coolant, and then pumped to the radiator in the bus compartment, so that the waste heat of the engine exhaust gas Take advantage of. ...
Claims
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Application Information
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