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Anti-rust and anti-wear additive, and preparation method and application thereof

An additive, dioctyl dithiophosphate technology, applied in the direction of additives, chemical instruments and methods, petroleum industry, etc., can solve the problem of large dosage, achieve high product yield, good atom economy, and avoid antagonism Effect

Inactive Publication Date: 2020-12-01
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an anti-rust and anti-wear additive and its preparation method and application. The additive has anti-wear, anti-friction and anti-rust functions to prevent water, oxygen and metal surface from rusting, and is especially suitable for fatty acid ester type flame retardant hydraulic oil , which solves the technical problem that the anti-wear agent and anti-rust agent in the fatty acid ester type flame retardant hydraulic oil confront each other, resulting in a large amount of use in the prior art

Method used

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  • Anti-rust and anti-wear additive, and preparation method and application thereof
  • Anti-rust and anti-wear additive, and preparation method and application thereof
  • Anti-rust and anti-wear additive, and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0016] Weigh 17.73g (0.05mol) of O, O'-dioctyl dithiophosphate and 4.9g (0.05mol) of maleic anhydride into a 100ml single-necked flask, stir and react at 90°C for 10h to obtain S-( Hydrogen-2,5-dioxfuran-3 base)-O,O'-dioctyl dithiophosphate, then add 13.32g (0.05mol) of dodecenylsuccinic anhydride, 12.50g (0.05 mol) N-(1-methylene-4(or 5)methylbenzotriazole)-N,N-dihydroxyethylamine, stirred and reacted at 80°C for 2h to obtain the additive of the present invention.

Embodiment 2

[0018] Weigh 35.46g (0.1mol) O, O'-dioctyl dithiophosphate and 9.8g (0.1mol) maleic anhydride into a 100ml single-necked flask, stir and react at 110°C for 6h to obtain S-( Hydrogen-2,5-dioxfuran-3 base)-O,O'-dioctyl dithiophosphate, then add 26.64g (0.1mol) dodecenylsuccinic anhydride, 25.00g (0.1mol) N-(1-methylene-4(or 5)methylbenzotriazole)-N,N-dihydroxyethylamine was stirred and reacted at 100°C for 1 hour to obtain the additive of the present invention.

[0019] In order to better illustrate the use effect of the additive of the present invention, the additive and Basf 349 (phosphate ester amine salt) prepared in Example 1 of the present invention are respectively added in rapeseed oil and trimethylolpropane oleate, fully stirred Dissolving, according to the different addition amounts, the samples added with the additives of the present invention are respectively referred to as Example 3 and Example 4, the samples without any additives are referred to as Comparative Exam...

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Abstract

The invention provides an anti-rust and anti-wear additive, and a preparation method and application thereof, and relates to the technical field of lubricating materials. The anti-rust and anti-wear additive is prepared by the following steps: (a) weighing a proper amount of O, O'-dioctyl dithiophosphate and maleic anhydride, adding the weighed materials into a single-necked flask, and stirring at90-110 DEG C for 6-10 hours to obtain a product S-(tetrahydro-2, 5-dioxofuran-3-yl)-O, O'-dioctyl dithiophosphate; (b) weighing a proper amount of S-(tetrahydro-2, 5-dioxofuran-3-yl)-O, O'-dioctyl dithiophosphate, N-(1-methylene-4 (or 5)methylbenzotriazole)-N, N-dihydroxyethylamine and dodecenyl succinic anhydride, adding the weighed materials into a flask, and carrying out a stirring reaction at80-100 DEG C for 1-2 hours. The anti-rust and anti-wear additive is added into fatty acid ester type flame-retardant hydraulic oil, and the adding amount is 0.1-0.5 wt.%. The anti-rust and anti-wearadditive provided by the invention has the beneficial effects of good wear resistance, friction reduction and rust prevention.

Description

technical field [0001] The invention relates to the technical field of lubricating materials, in particular to an anti-rust and anti-wear additive and its preparation method and application. Background technique [0002] As an important part of the hydraulic system, hydraulic oil plays the roles of energy transmission, system lubrication, anti-corrosion, anti-rust and cooling in the hydraulic system, and it is also one of the important oil products with the largest consumption of industrial lubricating oil. Fatty acid ester type flame retardant hydraulic oil is a safe, low toxicity and biodegradable green hydraulic oil, including two types: one is natural ester based on glycerin, such as rapeseed oil, olive oil, sunflower oil Seed oil and soybean oil, etc.; the second category is synthetic esters based on animal and vegetable fatty acids, mainly polyol esters, such as trimethylolpropane oleate, pentaerythritol oleate, etc. Fatty acid ester type flame retardant hydraulic oil...

Claims

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Application Information

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IPC IPC(8): C10M137/10C07F9/6518C10N40/08C10N30/06C10N30/12
CPCC07F9/65188C10M137/105
Inventor 李维民马瑞王晓波陈云龙孙启皓
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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