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Antioxidant corrosion inhibitor composition and lubricating oil composition

An anti-oxidant and anti-corrosion agent and composition technology, applied in the fields of lubricating oil compositions and anti-oxidative anti-corrosion agent compositions, can solve the unfavorable synergistic effects of anti-oxidation and anti-wear and anti-friction, shorten the service life of lubricating oil, and cause corrosion It can achieve the effects of excellent anti-wear and anti-friction performance, improved anti-oxidation performance and high conversion rate.

Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, organic molybdenum additives have good anti-wear and anti-friction properties, but most of them have high acid value and poor solubility. Therefore, when these organic molybdenum additives are used in combination with other antioxidants and anti-corrosion agents, the lubricating oil will be acidified prematurely. , deterioration, shorten the service life of lubricating oil, is not conducive to their synergistic effect of anti-oxidation and anti-wear and anti-friction and is prone to corrosion

Method used

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  • Antioxidant corrosion inhibitor composition and lubricating oil composition
  • Antioxidant corrosion inhibitor composition and lubricating oil composition
  • Antioxidant corrosion inhibitor composition and lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0074] Add fatty acid amide, polyisobutylene succinimide, inorganic molybdenum compound and optional distilled water, diluent oil and solvent into the reaction vessel, stir, heat up, remove water, and react at 120°C-160°C for 1-10 hours. Finally, the solvent is evaporated to obtain organic molybdenum additives W-01 to W-06, and the mass fraction of the molybdenum content is between 1.0% and 10.0%.

Embodiment 7-12 and comparative example 7-13

[0082] Add aromatic amine antioxidants, thiadiazole derivatives and organic molybdenum additives into various lubricating base oils in mass percentages, and mix and stir to obtain examples 7-12 and comparative examples 7-13 of the lubricating oil composition. The formula composition of the examples and comparative examples is shown in Table 4.

[0083] The anti-oxidation, anti-corrosion and anti-wear and anti-friction properties of these lubricating oil compositions were evaluated respectively. The PDSC method was used to determine the oxygen resistance of each lubricating oil composition, and the test conditions were 230°C, and the oxygen pressure was 0.5MPa; the copper sheet corrosion method was used to determine the corrosion resistance of each lubricating oil composition, and the test conditions were 100°C, 3h; The SRV method determines the anti-wear and anti-friction performance of each lubricating oil composition. The test conditions are: temperature 80℃, load 300N, stroke ...

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Abstract

The invention provides an antioxidant corrosion inhibitor composition and a lubricating oil composition containing the antioxidant corrosion inhibitor composition; and the antioxidant corrosion inhibitor composition comprises aromatic amine antioxidant, thiadiazole derivative and organic molybdenum additive, wherein the organic molybdenum additive is prepared by the reaction of fatty acid amide, polyisobutylene succinimide and inorganic molybdenum compound under the condition that unnecessary dilute oil exists. The antioxidant corrosion inhibitor composition and the lubricating oil composition have excellent antioxidant performance, corrosion resistance, wear resistance and antifriction performance.

Description

Technical field [0001] The present invention relates to an antioxidant composition and a lubricating oil composition containing the antioxidant composition. Background technique [0002] Lubricants can be divided into internal combustion engine oil, turbine oil, hydraulic oil, compressor oil, gear oil, rail oil, chain oil, metal processing oil, etc. according to their application. The increasingly stringent internal combustion engine oil specifications require that the internal combustion engine oil must meet the limits of low sulfur, low phosphorus and low ash content, and it must pass more and more stringent energy-saving bench tests. Lubricants for other machinery and equipment must also have good oxidation resistance, corrosion resistance, and anti-wear and anti-friction properties to meet the requirements of energy saving and environmental protection. Metal processing oils include drawing oils, drawing oils, wire drawing oils, cutting oils, tapping oils, etc. In order to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/12C10N30/12C10N30/10C10N30/06
Inventor 魏克成杨鹤陈晓伟李玲刘依农李勇韩恒文段庆华
Owner CHINA PETROLEUM & CHEM CORP
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