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Inorganic engine coolant and preparation method thereof

A technology of engine coolant and inorganic type, applied in the field of engine coolant, can solve the problems of car water tank hazards, unsafe, unreachable, etc., and achieve the effect of improving reserve alkalinity

Inactive Publication Date: 2017-03-15
XUZHOU COLLEGE OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some backward cities or rural areas are still flooded with methanol-based coolants, which are neither safe nor meet the requirements of national standards, and cause harm to automobile water tanks

Method used

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  • Inorganic engine coolant and preparation method thereof
  • Inorganic engine coolant and preparation method thereof
  • Inorganic engine coolant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, the inorganic type engine coolant of the present invention comprises the following components in parts by weight: 43 parts of ethylene glycol, 0.12 part of phosphoric acid, 0.6 part of borax, 0.1 part of urotropine, 0.1 part of sodium silicate, benzotriazine 0.05 parts of azole, 0.5 parts of defoamer, and 55.53 parts of base liquid.

[0015] The preparation method of the inorganic type engine coolant comprises the following steps: first, take 20 parts of deionized water and put it into the reaction kettle, adjust the temperature so that the temperature in the reaction kettle is controlled at 40-50°C, turn on the electric stirring, and the rotation speed is 30-50r / h min; then add 0.6 parts of borax, 0.1 parts of sodium silicate, and 0.1 part of urotropine to the reaction kettle in sequence, and stir for 20 to 40 minutes until completely dissolved; then add 43 parts of ethylene glycol into the reaction kettle, Stir for 10 to 20 minutes until uniformly mixed;...

Embodiment 2

[0019] Embodiment 2, the inorganic type engine coolant of the present invention comprises the following components in parts by weight: 42 parts of ethylene glycol, 0.13 parts of phosphoric acid, 0.5 part of borax, 0.2 part of urotropine, 0.05 part of sodium silicate, benzotriazepam 0.1 part of azole, 0.6 part of defoamer, 56.42 parts of base liquid.

[0020] The preparation method is basically the same as in Example 1.

Embodiment 3

[0021] Embodiment 3, the inorganic type engine coolant of the present invention comprises the following components in parts by weight: 44 parts of ethylene glycol, 0.11 part of phosphoric acid, 0.7 part of borax, 0.15 part of urotropine, 0.15 part of sodium silicate, benzotriazepam 0.1 part of azole, 0.8 part of defoamer, 53.99 parts of base liquid.

[0022] The preparation method is basically the same as in Example 1.

[0023] Main physical and chemical index of the present invention is:

[0024]

[0025]

[0026] The main use performance index of the present invention is:

[0027]

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Abstract

The invention discloses an inorganic engine coolant and a preparation method of the inorganic engine coolant. The coolant comprises the following components in parts by weight: 42 to 44 parts of ethylene glycol, 0.1014 to 0.1352 parts of phosphate, 0.5 to 0.7 part of borax, 0.05 to 0.2 part of urotropin, 0.05 to 0.2 part of sodium silicate, 0.02 to 0.15 part of benzotriazole, 0.4 to 1 part of a defoamer and the balance of basic liquid. The invention belongs to the technical field of engine coolants. According to the invention, ethylene glycol is taken as a basis, the common inorganic additives are added, a small amount of urotropine and benzotriazole are matched, and industrial phosphoric acid is used for replacing trisodium phosphate in the common formula, so that the defects of difficult dissolution and easy precipitation of industrial trisodium phosphate are overcome; the pH value of the coolant is appropriately controlled to be 9.00 to 10.00, and the reserve alkalinity of the coolant is appropriately enhanced, thereby having certain benefits on the long-term use and metal corrosion protection of the coolant.

Description

technical field [0001] The invention belongs to the technical field of engine coolant, in particular to an inorganic engine coolant and a preparation method thereof. Background technique [0002] Coolant is a complex multi-component system. An excellent coolant should have functions such as heat dissipation, anti-corrosion, anti-freezing, high boiling point, anti-scale and anti-foaming. Most antifreezes have been eliminated due to various reasons, such as methanol and ethanol have low boiling points, high vapor pressure and are flammable; salt water mixtures are prone to rust and crystal precipitation; glycerin has high viscosity, poor antifreeze performance, and is incompatible with rubber; Ethylene glycol has high viscosity at low temperature and poor anti-rust ability. [0003] At present, the quality of engine coolant in the domestic market is uneven, and there are still some coolants based on industrial ethanol or methanol. This product has a low boiling point and alco...

Claims

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Application Information

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IPC IPC(8): C09K5/20
CPCC09K5/20
Inventor 马光辉
Owner XUZHOU COLLEGE OF INDAL TECH