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Corrosion-resistant anti-freezing liquid

An antifreeze and corrosion-resistant technology, applied in the chemical industry, can solve the problems of highly toxic metabolites, large environmental pollution, environmental protection inconsistency, etc., and achieve the effect of remarkable anti-scaling, less environmental pollution and good thermal stability.

Inactive Publication Date: 2017-08-25
JURONG JIANGDIAN ELECTRICAL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, more than 95% of the water-based antifreeze liquids of ethylene glycol are used at home and abroad. Ethylene glycol has the advantages of high boiling point, low volatility, moderate viscosity, small change with temperature, and good thermal stability. Metabolites are highly toxic and pollute the environment, which is inconsistent with the environmental protection advocated by the state

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A corrosion-resistant antifreeze liquid prepared from the following raw materials in parts by weight: 20 parts of propylene glycol, 20 parts of glycerol, 0.01 part of disodium hydrogen phosphate, 0.01 part of sodium molybdate, 0.01 part of benzotriazole, three 0.005 part of cerium salt, 0.05 part of gemini quaternary ammonium salt, 0.01 part of sodium benzoate, and the balance is water.

Embodiment 2

[0022] A corrosion-resistant antifreeze liquid prepared from the following raw materials in parts by weight: 30 parts of propylene glycol, 30 parts of glycerin, 0.2 parts of disodium hydrogen phosphate, 0.25 parts of sodium molybdate, 0.25 parts of benzotriazole, three 0.15 part of cerium salt, 0.15 part of gemini quaternary ammonium salt, 0.15 part of sodium benzoate, and the balance is water.

Embodiment 3

[0024] A corrosion-resistant antifreeze liquid prepared from the following raw materials in parts by weight: 40 parts of propylene glycol, 40 parts of glycerin, 0.25 parts of disodium hydrogen phosphate, 0.25 parts of sodium molybdate, 0.25 parts of benzotriazole, three 0.25 part of cerium salt, 0.3 part of gemini quaternary ammonium salt, 0.5 part of sodium benzoate, and the balance is water.

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PUM

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Abstract

The invention provides a corrosion-resistant anti-freezing liquid, and relates to the field of chemical engineering. The corrosion-resistant anti-freezing liquid is prepared from, by weight, 20-40 parts of propylene glycol, 20-40 parts of glycerol, 0.01-1 part of composite scale and corrosion inhibitor, 0.05-0.3 part of cationic surfactant, 0.01-0.5 part of antioxidant and the balance water. The composite scale and corrosion inhibitor comprises phosphate, benzotriazole, molybdate, rare earth salt and the like. The corrosion-resistant anti-freezing liquid can be applied to electrical equipment like a fan wind rotor and a mobile type switch, and is high in stability, resistant to frost, resistant to corrosion and remarkable in scaling-resistant performance.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a corrosion-resistant antifreeze liquid. Background technique [0002] Antifreeze is a coolant containing special additives, which has excellent properties such as antifreezing in winter and anti-boiling in summer. At present, more than 95% of the water-based antifreeze liquids of ethylene glycol are used at home and abroad. Ethylene glycol has the advantages of high boiling point, low volatility, moderate viscosity, small change with temperature, and good thermal stability. Metabolites are highly toxic and pollute the environment, which is inconsistent with the environmental protection advocated by the state. [0003] In addition, since electrical equipment is made of various metals, in order to avoid material corrosion caused by antifreeze during long-term work and prolong the service life of electrical equipment, a corrosion inhibitor should be added to the antifr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20C23F11/18
CPCC09K5/20C23F11/18
Inventor 朱国勤李磊
Owner JURONG JIANGDIAN ELECTRICAL MACHINERY