Heat-conductive oil composition having high temperature oxidation resistance

A high-temperature anti-oxidation and high-temperature anti-oxidant technology, which is applied in the direction of lubricating compositions, petroleum industry, additives, etc., can solve the problem that high-temperature thermal stability and heat transfer characteristics cannot meet the processing temperature and heat transfer, and affect the normal and safe operation of the system. Short service life and other problems, to achieve the effect of excellent high anti-oxidation stability, excellent high anti-oxidation stability and long service life

Active Publication Date: 2013-02-13
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although traditional heat transfer oil products have certain high-temperature thermal stability and heat transfer characteristics, due to their own structure, they have shortcomings such as short service life and easy coking, which affect the normal and safe operation of the system, hi

Method used

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  • Heat-conductive oil composition having high temperature oxidation resistance
  • Heat-conductive oil composition having high temperature oxidation resistance
  • Heat-conductive oil composition having high temperature oxidation resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take 2.2kg of high-efficiency composite high-temperature antioxidant (T506), 0.05kg of high alkali value sulfurized alkylphenate calcium (T122), 0.3kg of borated polyisobutylene succinimide (T154B), 0.3kg of sulfur phosphorus secondary alcohol base zinc salt ( T205) 0.05kg, benzotriazole (T706) 0.08kg, thiadiazole derivative metal deactivator (T561) 0.06kg, and then added to 97.26kg of 40 ℃ kinematic viscosity of 40mm 2 / s base oil, mixed and stirred at 75°C for 1 hour to make the product of the present invention.

[0025] The thermal oxidation stability test (175°C, 72h) of this product adopts the method of Appendix C of GB 23971, and the evaluation results are "viscosity increase (40°C) is 21.1%", "acid value increase is 0.58mg KOH / g", "sediment 19.6mg / 100g"; the thermal stability test adopts the GB / T 23800 method to evaluate the results as "yellow and transparent in appearance" and "deterioration rate 5.6%".

Embodiment 2

[0027] Take 1.2kg of high-efficiency composite high-temperature antioxidant (T506), 0.1kg of high-basic value alkyl salicylate calcium (LZL109B), 0.6kg of high-molecular-weight succinimide (T161), 0.6kg of sulfur phosphorus secondary alcohol base zinc salt (T205 ) 0.08kg, heptadecenyl imidazolidinyl succinate (T703) 0.16kg, thiadiazole derivative metal deactivator (T561) 0.04kg, triazole derivative (Ciba IRGAMET30) 0.02kg, and then The kinematic viscosity at 40°C added to 97.8kg is 30mm 2 / s base oil, mixed and stirred at 55°C for 2 hours to make the product of the present invention.

[0028] The thermal oxidation stability test (175°C, 72h) of this product adopts the method of Appendix C of GB 23971, and the evaluation results are "viscosity increase (40°C) is 12.74%", "acid value increase is 0.32mgKOH / g", "sediment 4.2mg / g 100g"; the thermal stability test adopts the GB / T 23800 method to evaluate the results as "yellow and transparent in appearance" and "6.1% deterioration ...

Embodiment 3

[0030] Take 0.4kg of high-efficiency composite high-temperature antioxidant (T506), 0.6kg of dinonyl diphenylamine (T558), 0.04kg of high alkali value sulfurized alkylphenate calcium (T122), and borated polyisobutylene succinimide (T154B) 0.06kg, 0.02kg of high molecular weight succinimide (T161), 0.02kg of sulfur phosphorus secondary alcohol zinc salt (T205), 0.04kg of benzotriazole (T706), thiadiazole derivative metal deactivator ( T561) 0.04kg, triazole derivatives (Ciba IRGAMET 30) 0.04kg, and then sequentially added to 98.74kg of 40 ° C kinematic viscosity of 35mm 2 / s base oil, mixed and stirred at 65°C for 3 hours to make the product of the present invention.

[0031]The thermal oxidation stability test (175°C, 72h) of this product adopts the method in Appendix C of GB 23971, and the evaluation results are "viscosity increase (40°C) is 11.34%", "acid value increase is 0.40mgKOH / g", "sediment 2.8mg / g 100g"; the thermal stability test adopts the GB / T 23800 method to eval...

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Abstract

The invention provides a heat-conductive oil composition having a high temperature oxidation resistance. The heat-conductive oil composition comprises 0.2-3.0wt% of an antioxidant, 0.01-0.1wt% of a detergent, 0.08-1.2wt% of a dispersant, 0.02-0.18wt% of an anti-oxidation and anti-corrosion agent, 0.02-0.2wt% of an antirust agent, 0.01-0.1wt% of a metal deactivator, and the balance base oil. The heat-conductive oil composition has high anti-oxidation and stabilization performances, is suitable for the conditions of a plurality of processing technologies, and has the advantages of long service life, reasonable raw material compatibility, simple preparation method, wide application range, and easily available raw materials.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a heat-conducting oil composition with high oxidation resistance, and belongs to the field of chemical industry. Background technique [0002] Heat transfer oil is a kind of heat transfer medium, which is an organic heat carrier. According to its structure, it can be divided into hydrocarbons, ethers, alcohols, silicone oils, halogen-containing hydrocarbons and nitrogen-containing heterocycles. At present, the most used heat transfer oil at home and abroad is hydrocarbon, that is, only two kinds of elements are carbon and hydrogen. Compared with water as a heat transfer medium, heat transfer oil has the characteristics of high temperature, low vapor pressure and convenient use. It also has the advantages of good heat transfer effect and uniform heating. It is widely used in heating, cooling, waste heat recovery, solar energy and other industries. field and everyday life. [0003...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10N30/10
Inventor 韦安柱陈惠卿李万英王向阳汤涛贾睿
Owner CHINA PETROLEUM & CHEM CORP
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