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Antioxidant composition and lubricating oil composition

A technology of antioxidant and composition, which is applied in the direction of lubricating composition, additives, petroleum industry, etc., can solve the problems of weakening the anti-wear and anti-friction effect of organic molybdenum additives, shortening the service life of lubricating oil, and unfavorable anti-oxidation synergy, etc. Achieve excellent anti-wear and anti-friction performance, improve anti-oxidation performance and anti-wear and anti-friction performance, excellent anti-oxidation performance and anti-wear and anti-friction performance

Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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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, the lubricating oil will be prematurely acidified and deteriorated, shortening The service life of lubricating oil is not conducive to their synergistic anti-oxidation effect and weakens the anti-wear and anti-friction effect of organic molybdenum additives

Method used

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  • Antioxidant composition and lubricating oil composition
  • Antioxidant composition and lubricating oil composition
  • Antioxidant composition and lubricating oil composition

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Effect test

Embodiment 1-6

[0070] 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 moisture, and react at 120°C-160°C for 1-10 hours, Finally, the solvent is distilled off to obtain the organic molybdenum additives W-01-W-06 respectively, and the mass fraction of the molybdenum content is between 1.0% and 10.0%.

Embodiment 7-12 and comparative example 7-15

[0078] Add arylamine antioxidants and organic molybdenum additives to various lubricating base oils by mass percentage respectively, mix and stir to obtain Examples 7-12 and Comparative Examples 7-15 of the lubricating oil composition, each embodiment and Comparative Example The formulation composition is shown in Table 4.

[0079] The anti-oxidation properties and anti-wear and anti-friction properties of these lubricating oil compositions were evaluated respectively. The PDSC method was used to measure the anti-oxidation performance of each lubricating oil composition. The test conditions were 230°C and the oxygen pressure was 0.5MPa; the SRV method was used to measure the anti-wear and friction-reducing properties of each lubricating oil composition. The test conditions were: temperature 80°C, load 300N, stroke 1mm, test time 1 hour, frequency 50Hz, SRV method see National Energy Administration standard NB / SH / T0847-2010. The test results are shown in Table 5.

[0080] As ...

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Abstract

The invention provides an antioxidant composition and a lubricating oil composition containing the antioxidant composition; and the antioxidant composition comprises aromatic amine antioxidant 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 composition and the lubricating oil composition have excellent antioxidant performance, 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] Lubricating oil can be divided into two categories: vehicle lubricating oil and industrial lubricating oil according to its use. In order to improve the service life and meet the requirements of energy saving, it must have good anti-oxidation performance and reduce friction and wear performance. [0003] At present, many documents have disclosed some technical solutions for using antioxidants and organic molybdenum additives as antioxidant compositions. For example, U.S. Patent No. 5,650,381 discloses a technical scheme for compounding sulfur-free organic molybdenum and a diarylamine antioxidant as an antioxidant composition; The synergistic effect between molybdenum carbamate and arylamine antioxidants” disclosed the synergistic antioxidant effect between the two; in January 2007 “Fine Pet...

Claims

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Application Information

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IPC IPC(8): C10M141/12C10N30/10C10N30/06
Inventor 魏克成陈晓伟杨鹤李玲刘依农李勇韩恒文段庆华
Owner CHINA PETROLEUM & CHEM CORP
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