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Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution

An environmentally friendly, low-temperature-resistant technology, applied in the field of antifreeze, can solve the problems of easy precipitation, short service life, and explosion, and achieve the advantages of environmental protection, superior resistance to hard water, and excellent low-temperature resistance. Effect

Inactive Publication Date: 2010-05-12
天津市东宝润滑油脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Toxic, not environmentally friendly, poor biodegradability
[0006] 3. Flammable and explosive
[0007] 4. Easy to generate air resistance
[0008] 5. Short service life, prone to precipitation
[0009] In recent years, due to the widespread use of ethylene glycol by manufacturers, the price of ethylene glycol has been raised, making the cost of antifreeze products for automobiles higher, which is difficult for customers to accept, which greatly affects the sales of manufacturers

Method used

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  • Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution
  • Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution
  • Formulation and preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Prepare antifreeze in the following proportions:

[0040] Dimethyl sulfoxide 37%

[0041] Deionized Water 63%,

[0042] Taking the basic raw material as 100% mass basis, the weight percentages of other ingredients added are:

[0043] Triethanolamine 0.8%

[0044] Benzotriazole 0.1%

[0045] Sebacic acid 0.25%

[0046] Sodium 2-Mercaptobenzothiazole 0.08%

[0047] Sodium nitrate 0.1%

[0048] Sodium hydroxide 0.11%

[0049] Sodium silicate 0.1%

[0050] Emulsified silicone oil defoamer 0.004%

[0051] Fluorescein 0.005%.

[0052] 1. Add 37 kg of dimethyl sulfoxide to reaction kettle A, followed by 0.8 kg of triethanolamine, 0.1 kg of benzotriazole, and 0.25 kg of sebacic acid, and stir thoroughly for 15 to 20 minutes until all are dissolved.

[0053] 2. In the reaction kettle B, add 63kg of deionized water, 0.08kg of sodium 2-mercaptobenzothiazole, 0.11kg of sodium hydroxide, and stir for 15 to 20 minutes, then add 0.1kg of sodium nitrate and 0.1kg of sodium si...

Embodiment 2

[0056] Prepare antifreeze in the following proportions:

[0057] Dimethyl sulfoxide 43.5%

[0058] Deionized water 56.5%

[0059] Taking the basic raw material as 100% mass basis, the weight percentages of other ingredients added are:

[0060] Triethanolamine 0.85%

[0061] Benzotriazole 0.11%

[0062] Sebacic acid 0.28%

[0063]Sodium 2-Mercaptobenzothiazole 0.09%

[0064] Sodium nitrate 0.11%

[0065] Sodium Hydroxide 0.12%

[0066] Sodium silicate 0.1%

[0067] Emulsified silicone oil defoamer 0.004%

[0068] Fluorescein 0.005%

[0069] The specific implementation steps are the same as in Example 1.

Embodiment 3

[0071] Prepare antifreeze in the following proportions:

[0072] Dimethyl sulfoxide 44%

[0073] Deionized water 56%

[0074] Taking the basic raw material as 100% mass basis, the weight percentages of other ingredients added are:

[0075] Triethanolamine 0.9%

[0076] Benzotriazole 0.12%

[0077] Sebacic acid 0.3%

[0078] Sodium 2-Mercaptobenzothiazole 0.1%

[0079] Sodium nitrate 0.11%

[0080] Sodium Hydroxide 0.13%

[0081] Sodium silicate 0.11%

[0082] Emulsified silicone oil defoamer 0.004%

[0083] Fluorescein 0.005%

[0084] The specific implementation steps are the same as in Example 1.

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Abstract

The invention relates to a formulation and a preparation method for low-temperature-resistant environment-friendly automobile non-freezing solution. The preparation method comprises: adding dimethyl sulfoxide to a reactor A, adding triethanolamine, benzotriazole and sebacic acid in turn, fully stirring till all materials are dissolved; adding deionized water to a reactor B, adding sulfhydryl benzothiazole sodium and sodium hydroxide in turn, stirring for 15 to 20 minutes, adding sodium nitrate and sodium silicate in turn and fully stirring for 15 to 20 minutes; pumping the materials in the reactor A into the reactor B, mixing two phases well, adding defoamer, continuing to stirring and mixing, adding pigment, stirring and mixing; and standing the obtained product for 15 to 20 minutes so as to obtain the non-freezing solution. The non-freezing solution has the advantages of excellent low-temperature resistance, energy conservation, environmental protection performance, excellent performance, proper price and help to environmental ecological protection.

Description

technical field [0001] The invention relates to the technical field of antifreeze used in the cooling system of an automobile engine, in particular to a low-temperature resistant and environment-friendly antifreeze formula for automobiles and a method for preparing the antifreeze. Background technique [0002] Antifreeze, also known as protective fluid or engine coolant, is the circulating medium used in the cooling system of automobile engines. It utilizes the circulating flow of coolant to extract heat and protect the normal operation of the engine. In addition to containing the lowest possible freezing point and additives, the antifreeze fluid for automobiles also needs to have a higher boiling point, which can prevent scale and corrosion and performance of various metals in the cooling system. [0003] At present, manufacturers generally use ethylene glycol as the main component of antifreeze. But there are following disadvantages: [0004] 1. Not resistant to low temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20
Inventor 郑国栋白清珍李德怀张桂英
Owner 天津市东宝润滑油脂有限公司
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