Anticorrosive wear-resistant lubricating oil and preparation method thereof

By adding additives A and B to the lubricating oil, a dense polar lubricating film and a high-hardness sulfide protective layer are formed, which solves the corrosion and wear problems of the lubricating oil in high temperature and high pressure environments, achieves the anti-corrosion and wear-resistant effect of the lubricating oil, and extends the service life of the equipment.

CN120591017APending Publication Date: 2025-09-05KUNSHAN HAOKEYI TRANSMISSION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202510786001.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Existing lubricating oils are easily oxidized and deteriorated under high temperature and high pressure environments, causing corrosion and wear, affecting the normal operation and service life of equipment.

Method used

A combination of additives A and additive B is used. Additive A is composed of 5-(4-methylsulfonyl)benzene-2-mercapto-1,3,4-oxadiazole and potassium butyl xanthate, and additive B is a zirconium-based metal-organic framework material. It blocks the erosion of corrosive media by forming a dense polar lubricating film and a high-hardness sulfide protective layer on the metal surface.

Benefits of technology

Significantly improve the anti-wear and anti-corrosion capabilities of lubricants, extend equipment life, reduce maintenance and replacement costs, and ensure stable lubricant performance under dynamic conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses anti-corrosion and wear-resistant lubricating oil and a preparation method thereof, and relates to the technical field of lubricating oil. The corrosion-resistant and wear-resistant lubricating oil comprises an additive A and an additive B, the additive A is obtained by carrying out hydrazinolysis reaction on 4-(methylsulfonyl) benzoyl hydrazine, potassium hydroxide and carbon disulfide to construct oxadiazole so as to prepare 5-(4-methylsulfonyl) benzene-2-sulfydryl-1, 3, 4-oxadiazole, and then adding potassium butylxanthate into the 5-(4-methylsulfonyl) benzene-2-sulfydryl-1, 3, 4-oxadiazole; the additive B is a metal organic framework material which takes zirconium in zirconium salt as a metal node and 1, 3, 5-trimesic acid as a rigid ligand. In a high-temperature environment, active sulfur released by decomposition of xanthate radicals and oxadiazole sulfydryl synergistically participate in a metal surface vulcanization reaction, a high-hardness sulfide friction protection layer is generated, the wear resistance is remarkably improved, meanwhile, methylsulfonyl efficiently captures lubricating oil oxidation free radicals through sulfur-oxygen double bonds, generation of acidic substances is inhibited, and the lubricating oil is effectively protected. And anti-oxidation and corrosion inhibition synergistic protection is realized.
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